./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Waldkirch.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-crafted/Waldkirch.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 7a10ccd42123994759390bf7d921442c28e0623a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 01:28:06,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:28:06,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:28:06,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:28:06,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:28:06,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:28:06,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:28:06,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:28:06,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:28:06,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:28:06,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:28:06,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:28:06,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:28:06,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:28:06,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:28:06,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:28:06,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:28:06,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:28:06,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:28:06,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:28:06,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:28:06,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:28:06,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:28:06,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:28:06,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:28:06,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:28:06,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:28:06,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:28:06,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:28:06,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:28:06,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:28:06,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:28:06,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:28:06,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:28:06,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:28:06,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:28:06,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:28:06,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:28:06,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:28:06,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:28:06,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:28:06,572 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:28:06,589 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:28:06,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:28:06,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:28:06,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:28:06,591 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:28:06,591 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:28:06,591 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:28:06,591 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:28:06,591 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:28:06,592 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:28:06,592 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:28:06,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:28:06,592 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:28:06,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:28:06,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:28:06,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:28:06,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:28:06,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:28:06,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:28:06,594 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:28:06,594 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:28:06,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:28:06,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:28:06,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:28:06,595 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:28:06,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:28:06,595 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:28:06,596 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:28:06,596 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:28:06,597 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:28:06,597 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 -> 7a10ccd42123994759390bf7d921442c28e0623a [2020-07-29 01:28:06,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:28:06,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:28:06,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:28:06,933 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:28:06,939 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:28:06,941 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Waldkirch.c [2020-07-29 01:28:07,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a8b59f57/26a7dc08197e4d3f870a2132100e4b70/FLAG2ef0c3e15 [2020-07-29 01:28:07,465 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:28:07,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Waldkirch.c [2020-07-29 01:28:07,472 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a8b59f57/26a7dc08197e4d3f870a2132100e4b70/FLAG2ef0c3e15 [2020-07-29 01:28:07,900 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a8b59f57/26a7dc08197e4d3f870a2132100e4b70 [2020-07-29 01:28:07,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:28:07,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:28:07,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:28:07,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:28:07,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:28:07,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:28:07" (1/1) ... [2020-07-29 01:28:07,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a331efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:07, skipping insertion in model container [2020-07-29 01:28:07,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:28:07" (1/1) ... [2020-07-29 01:28:07,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:28:07,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:28:08,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:28:08,135 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:28:08,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:28:08,171 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:28:08,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:08 WrapperNode [2020-07-29 01:28:08,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:28:08,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:28:08,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:28:08,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:28:08,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:08" (1/1) ... [2020-07-29 01:28:08,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:08" (1/1) ... [2020-07-29 01:28:08,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:28:08,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:28:08,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:28:08,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:28:08,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:08" (1/1) ... [2020-07-29 01:28:08,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:08" (1/1) ... [2020-07-29 01:28:08,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:08" (1/1) ... [2020-07-29 01:28:08,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:08" (1/1) ... [2020-07-29 01:28:08,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:08" (1/1) ... [2020-07-29 01:28:08,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:08" (1/1) ... [2020-07-29 01:28:08,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:08" (1/1) ... [2020-07-29 01:28:08,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:28:08,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:28:08,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:28:08,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:28:08,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:08" (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 01:28:08,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:28:08,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:28:08,510 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:28:08,510 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:28:08,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:28:08 BoogieIcfgContainer [2020-07-29 01:28:08,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:28:08,518 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:28:08,518 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:28:08,524 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:28:08,525 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:28:08,526 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:28:07" (1/3) ... [2020-07-29 01:28:08,527 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2086ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:28:08, skipping insertion in model container [2020-07-29 01:28:08,527 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:28:08,528 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:28:08" (2/3) ... [2020-07-29 01:28:08,528 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2086ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:28:08, skipping insertion in model container [2020-07-29 01:28:08,528 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:28:08,528 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:28:08" (3/3) ... [2020-07-29 01:28:08,532 INFO L371 chiAutomizerObserver]: Analyzing ICFG Waldkirch.c [2020-07-29 01:28:08,602 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:28:08,602 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:28:08,602 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:28:08,602 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:28:08,603 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:28:08,603 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:28:08,603 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:28:08,603 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:28:08,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 01:28:08,636 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:28:08,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:28:08,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:28:08,641 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:28:08,641 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:28:08,641 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:28:08,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 01:28:08,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:28:08,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:28:08,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:28:08,644 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:28:08,644 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:28:08,650 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 6#L14-2true [2020-07-29 01:28:08,650 INFO L796 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - 1; 6#L14-2true [2020-07-29 01:28:08,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:28:08,655 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-07-29 01:28:08,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:28:08,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048881443] [2020-07-29 01:28:08,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:28:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:28:08,732 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:28:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:28:08,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:28:08,754 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:28:08,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:28:08,755 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-07-29 01:28:08,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:28:08,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445839036] [2020-07-29 01:28:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:28:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:28:08,768 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:28:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:28:08,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:28:08,773 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:28:08,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:28:08,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-07-29 01:28:08,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:28:08,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658224901] [2020-07-29 01:28:08,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:28:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:28:08,782 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:28:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:28:08,787 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:28:08,788 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:28:08,859 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:28:08,860 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:28:08,860 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:28:08,861 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:28:08,861 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:28:08,862 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:28:08,862 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:28:08,863 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:28:08,863 INFO L133 ssoRankerPreferences]: Filename of dumped script: Waldkirch.c_Iteration1_Loop [2020-07-29 01:28:08,864 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:28:08,864 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:28:08,911 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 01:28:08,929 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 01:28:08,939 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 01:28:09,132 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:28:09,133 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) [2020-07-29 01:28:09,140 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:28:09,140 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:28:09,151 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:28:09,152 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) [2020-07-29 01:28:09,193 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:28:09,193 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:28:09,199 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:28:09,199 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) [2020-07-29 01:28:09,238 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:28:09,239 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:28:09,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:28:09,286 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:28:09,329 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:28:09,331 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:28:09,332 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:28:09,332 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:28:09,332 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:28:09,333 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:28:09,333 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:28:09,333 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:28:09,334 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:28:09,334 INFO L133 ssoRankerPreferences]: Filename of dumped script: Waldkirch.c_Iteration1_Loop [2020-07-29 01:28:09,334 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:28:09,334 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:28:09,346 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 01:28:09,353 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 01:28:09,360 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 01:28:09,480 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:28:09,486 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:28:09,492 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 01:28:09,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:28:09,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:28:09,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:28:09,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:28:09,503 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:28:09,503 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:28:09,509 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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:28:09,537 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 01:28:09,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:28:09,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:28:09,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:28:09,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:28:09,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:28:09,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:28:09,549 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 01:28:09,588 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 01:28:09,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:28:09,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:28:09,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:28:09,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:28:09,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:28:09,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:28:09,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:28:09,596 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:28:09,620 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 01:28:09,621 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:28:09,626 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:28:09,626 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:28:09,627 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:28:09,627 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-29 01:28:09,655 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:28:09,663 INFO L393 LassoCheck]: Loop: "assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - 1;" [2020-07-29 01:28:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:28:09,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:28:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:28:09,708 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:28:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:28:09,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:28:09,720 INFO L280 TraceCheckUtils]: 0: Hoare triple {16#unseeded} havoc main_#res;havoc main_#t~nondet0, main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; {16#unseeded} is VALID [2020-07-29 01:28:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:28:09,726 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:28:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:28:09,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:28:09,732 INFO L280 TraceCheckUtils]: 0: Hoare triple {19#(>= oldRank0 (+ (* 2 ULTIMATE.start_main_~x~0) 1))} assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - 1; {29#(or (and (> oldRank0 (+ (* 2 ULTIMATE.start_main_~x~0) 1)) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 01:28:09,733 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 01:28:09,744 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:28:09,752 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 01:28:09,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:28:09,757 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,764 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 01:28:09,766 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2020-07-29 01:28:09,825 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 01:28:09,826 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 01:28:09,826 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:28:09,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 01:28:09,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:28:09,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:28:09,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:28:09,829 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 01:28:09,832 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:28:09,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:28:09,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:28:09,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2020-07-29 01:28:09,835 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:28:09,835 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:28:09,837 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 6 states. [2020-07-29 01:28:09,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:28:09,839 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:28:09,840 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 01:28:09,841 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:28:09,842 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:28:09,843 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 15 states and 18 transitions. cyclomatic complexity: 4 [2020-07-29 01:28:09,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. cyclomatic complexity: 4 [2020-07-29 01:28:09,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:28:09,844 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:28:09,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:28:09,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:28:09,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,845 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 01:28:09,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:28:09,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:28:09,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,847 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 01:28:09,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 15 letters. Loop has 15 letters. [2020-07-29 01:28:09,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 15 letters. Loop has 15 letters. [2020-07-29 01:28:09,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,849 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 01:28:09,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:28:09,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:28:09,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,851 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 01:28:09,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:28:09,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:28:09,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,852 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 01:28:09,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:28:09,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:28:09,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,854 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 01:28:09,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:28:09,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:28:09,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,856 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 01:28:09,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:28:09,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:28:09,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,858 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 01:28:09,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,858 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:28:09,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:28:09,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-07-29 01:28:09,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:28:09,863 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:28:09,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:28:09,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:28:09,865 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. cyclomatic complexity: 4 [2020-07-29 01:28:09,868 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:28:09,872 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-07-29 01:28:09,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:28:09,874 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:28:09,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:28:09,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:28:09,876 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:28:09,876 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:28:09,876 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:28:09,876 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:28:09,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:28:09,877 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:28:09,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:28:09,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:28:09 BoogieIcfgContainer [2020-07-29 01:28:09,885 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:28:09,886 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:28:09,886 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:28:09,886 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:28:09,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:28:08" (3/4) ... [2020-07-29 01:28:09,892 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:28:09,892 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:28:09,896 INFO L168 Benchmark]: Toolchain (without parser) took 1989.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 961.6 MB in the beginning and 977.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 119.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:28:09,897 INFO L168 Benchmark]: CDTParser took 1.22 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 01:28:09,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.85 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 01:28:09,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:28:09,900 INFO L168 Benchmark]: Boogie Preprocessor took 19.51 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. [2020-07-29 01:28:09,901 INFO L168 Benchmark]: RCFGBuilder took 239.94 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2020-07-29 01:28:09,902 INFO L168 Benchmark]: BuchiAutomizer took 1367.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.5 MB in the end (delta: 129.6 MB). Peak memory consumption was 129.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:28:09,903 INFO L168 Benchmark]: Witness Printer took 6.43 ms. Allocated memory is still 1.2 GB. Free memory is still 977.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:28:09,908 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 1.22 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 263.85 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 85.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.51 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 239.94 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1367.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.5 MB in the end (delta: 129.6 MB). Peak memory consumption was 129.6 MB. Max. memory is 11.5 GB. * Witness Printer took 6.43 ms. Allocated memory is still 1.2 GB. Free memory is still 977.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...