./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/b.07.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- 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/termination-restricted-15/b.07.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a3a1315287b984b6ff3d1521ef67a642a499a933 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 01:31:20,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:31:20,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:31:20,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:31:20,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:31:20,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:31:20,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:31:20,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:31:20,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:31:20,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:31:20,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:31:20,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:31:20,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:31:20,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:31:20,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:31:20,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:31:20,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:31:20,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:31:20,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:31:20,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:31:20,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:31:20,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:31:20,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:31:20,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:31:20,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:31:20,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:31:20,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:31:20,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:31:20,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:31:20,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:31:20,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:31:20,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:31:20,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:31:20,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:31:20,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:31:20,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:31:20,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:31:20,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:31:20,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:31:20,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:31:20,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:31:20,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:31:20,749 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:31:20,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:31:20,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:31:20,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:31:20,752 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:31:20,752 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:31:20,752 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:31:20,753 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:31:20,753 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:31:20,753 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:31:20,753 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:31:20,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:31:20,754 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:31:20,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:31:20,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:31:20,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:31:20,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:31:20,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:31:20,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:31:20,756 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:31:20,756 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:31:20,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:31:20,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:31:20,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:31:20,757 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:31:20,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:31:20,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:31:20,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:31:20,758 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:31:20,759 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:31:20,760 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3a1315287b984b6ff3d1521ef67a642a499a933 [2020-07-29 01:31:21,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:31:21,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:31:21,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:31:21,085 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:31:21,085 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:31:21,086 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.07.c [2020-07-29 01:31:21,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9358e96/aa7e829d98494f05a8a3b2a44ac2638b/FLAG2a2736523 [2020-07-29 01:31:21,624 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:31:21,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.07.c [2020-07-29 01:31:21,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9358e96/aa7e829d98494f05a8a3b2a44ac2638b/FLAG2a2736523 [2020-07-29 01:31:22,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9358e96/aa7e829d98494f05a8a3b2a44ac2638b [2020-07-29 01:31:22,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:31:22,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:31:22,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:31:22,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:31:22,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:31:22,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:31:22" (1/1) ... [2020-07-29 01:31:22,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3994dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:22, skipping insertion in model container [2020-07-29 01:31:22,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:31:22" (1/1) ... [2020-07-29 01:31:22,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:31:22,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:31:22,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:31:22,232 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:31:22,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:31:22,265 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:31:22,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:22 WrapperNode [2020-07-29 01:31:22,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:31:22,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:31:22,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:31:22,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:31:22,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:22" (1/1) ... [2020-07-29 01:31:22,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:22" (1/1) ... [2020-07-29 01:31:22,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:31:22,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:31:22,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:31:22,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:31:22,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:22" (1/1) ... [2020-07-29 01:31:22,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:22" (1/1) ... [2020-07-29 01:31:22,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:22" (1/1) ... [2020-07-29 01:31:22,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:22" (1/1) ... [2020-07-29 01:31:22,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:22" (1/1) ... [2020-07-29 01:31:22,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:22" (1/1) ... [2020-07-29 01:31:22,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:22" (1/1) ... [2020-07-29 01:31:22,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:31:22,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:31:22,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:31:22,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:31:22,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:22" (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 01:31:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:31:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:31:22,628 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:31:22,629 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:31:22,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:22 BoogieIcfgContainer [2020-07-29 01:31:22,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:31:22,633 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:31:22,633 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:31:22,636 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:31:22,637 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:22,637 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:31:22" (1/3) ... [2020-07-29 01:31:22,638 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@203412e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:31:22, skipping insertion in model container [2020-07-29 01:31:22,638 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:22,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:22" (2/3) ... [2020-07-29 01:31:22,639 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@203412e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:31:22, skipping insertion in model container [2020-07-29 01:31:22,639 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:22,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:22" (3/3) ... [2020-07-29 01:31:22,641 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.07.c [2020-07-29 01:31:22,690 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:31:22,690 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:31:22,691 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:31:22,691 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:31:22,691 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:31:22,691 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:31:22,692 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:31:22,692 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:31:22,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 01:31:22,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:31:22,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:22,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:22,734 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:31:22,734 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:31:22,734 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:31:22,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 01:31:22,736 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:31:22,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:22,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:22,737 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:31:22,737 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:31:22,743 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 3#L12-2true [2020-07-29 01:31:22,743 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~x~0 > main_~z~0 && main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 3#L12-2true [2020-07-29 01:31:22,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:22,748 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-07-29 01:31:22,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:22,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267925934] [2020-07-29 01:31:22,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:22,819 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:22,824 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:22,840 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:22,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:22,842 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-07-29 01:31:22,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:22,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680416579] [2020-07-29 01:31:22,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:22,856 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:22,862 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:22,864 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:22,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:22,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-07-29 01:31:22,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:22,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437980312] [2020-07-29 01:31:22,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:22,877 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:22,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:22,887 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:22,980 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:31:22,981 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:31:22,981 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:31:22,981 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:31:22,982 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:31:22,982 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:22,982 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:31:22,982 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:31:22,983 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.07.c_Iteration1_Loop [2020-07-29 01:31:22,983 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:31:22,983 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:31:23,030 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 01:31:23,047 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 01:31:23,056 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 01:31:23,299 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:31:23,300 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 01:31:23,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:23,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:31:23,318 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:31:23,319 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 01:31:23,349 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:23,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:31:23,354 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:31:23,354 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 01:31:23,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:23,381 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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:23,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:31:23,415 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:31:23,684 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:31:23,686 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:31:23,686 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:31:23,686 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:31:23,686 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:31:23,686 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:31:23,687 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:23,687 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:31:23,687 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:31:23,687 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.07.c_Iteration1_Loop [2020-07-29 01:31:23,687 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:31:23,688 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:31:23,704 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 01:31:23,714 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 01:31:23,720 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 01:31:23,893 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:31:23,900 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) [2020-07-29 01:31:23,918 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 01:31:23,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:23,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:23,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:23,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:23,935 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:31:23,935 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 [2020-07-29 01:31:23,943 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 01:31:23,987 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 01:31:23,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:23,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:23,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:23,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:23,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:31:23,997 INFO L402 nArgumentSynthesizer]: A total of 2 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 01:31:24,004 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 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 01:31:24,033 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 01:31:24,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:24,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:31:24,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:24,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:24,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:24,040 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:31:24,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:31:24,044 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:31:24,050 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 01:31:24,051 INFO L444 ModelExtractionUtils]: 2 out of 5 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:31:24,060 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:31:24,060 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:31:24,061 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:31:24,061 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:24,100 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:31:24,105 INFO L393 LassoCheck]: Loop: "assume !!(main_~x~0 > main_~z~0 && main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1;" [2020-07-29 01:31:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:24,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:24,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:31:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:24,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:31:24,172 INFO L280 TraceCheckUtils]: 0: Hoare triple {16#unseeded} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; {16#unseeded} is VALID [2020-07-29 01:31:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:24,179 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:31:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:24,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:31:24,187 INFO L280 TraceCheckUtils]: 0: Hoare triple {19#(>= oldRank0 (+ (* (- 1) ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~x~0))} assume !!(main_~x~0 > main_~z~0 && main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; {29#(or (and (> oldRank0 (+ (* (- 1) ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~x~0)) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 01:31:24,187 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 01:31:24,198 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:31:24,209 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:31:24,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:24,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,222 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-29 01:31:24,224 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2020-07-29 01:31:24,299 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2020-07-29 01:31:24,301 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 01:31:24,301 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:31:24,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 01:31:24,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:31:24,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:24,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:24,305 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 01:31:24,312 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:31:24,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:24,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:24,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2020-07-29 01:31:24,317 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:24,317 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:24,319 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 6 states. [2020-07-29 01:31:24,322 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:31:24,323 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:31:24,324 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 01:31:24,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:31:24,329 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:31:24,329 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 15 states and 18 transitions. cyclomatic complexity: 4 [2020-07-29 01:31:24,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. cyclomatic complexity: 4 [2020-07-29 01:31:24,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:24,330 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:31:24,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:24,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:24,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:24,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:24,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:24,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:24,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 15 letters. Loop has 15 letters. [2020-07-29 01:31:24,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 15 letters. Loop has 15 letters. [2020-07-29 01:31:24,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 15 letters. Loop has 15 letters. [2020-07-29 01:31:24,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:31:24,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:31:24,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:31:24,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:31:24,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:31:24,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:31:24,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:24,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,343 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:24,343 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,343 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:24,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,348 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:24,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,349 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:24,349 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,349 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:24,349 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:24,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:24,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:24,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,352 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:31:24,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:31:24,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-07-29 01:31:24,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:24,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:24,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:24,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:24,366 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. cyclomatic complexity: 4 [2020-07-29 01:31:24,373 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:24,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-07-29 01:31:24,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:31:24,379 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:31:24,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:31:24,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:31:24,380 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:24,380 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:24,380 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:24,381 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:31:24,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:31:24,381 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:24,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:24,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:31:24 BoogieIcfgContainer [2020-07-29 01:31:24,399 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:31:24,400 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:31:24,400 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:31:24,401 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:31:24,403 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:22" (3/4) ... [2020-07-29 01:31:24,409 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:31:24,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:31:24,414 INFO L168 Benchmark]: Toolchain (without parser) took 2393.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 961.6 MB in the beginning and 958.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 128.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:24,417 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:31:24,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.12 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:24,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:24,422 INFO L168 Benchmark]: Boogie Preprocessor took 21.22 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 01:31:24,424 INFO L168 Benchmark]: RCFGBuilder took 255.11 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:24,426 INFO L168 Benchmark]: BuchiAutomizer took 1766.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 958.8 MB in the end (delta: 145.0 MB). Peak memory consumption was 145.0 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:24,427 INFO L168 Benchmark]: Witness Printer took 10.19 ms. Allocated memory is still 1.2 GB. Free memory is still 958.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:31:24,443 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 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.12 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 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 89.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.22 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 255.11 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1766.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 958.8 MB in the end (delta: 145.0 MB). Peak memory consumption was 145.0 MB. Max. memory is 11.5 GB. * Witness Printer took 10.19 ms. Allocated memory is still 1.2 GB. Free memory is still 958.8 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 -1 * z + x 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 0.2s. 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: 4 SDtfs, 5 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf93 smp100 dnf100 smp100 tf107 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 40ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...