./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 704f106dd2de438ac750bf027fbdb25552a79f07 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 02:07:35,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:07:35,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:07:35,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:07:35,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:07:35,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:07:35,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:07:35,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:07:35,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:07:35,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:07:35,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:07:35,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:07:35,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:07:35,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:07:35,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:07:35,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:07:35,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:07:35,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:07:35,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:07:35,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:07:35,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:07:35,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:07:35,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:07:35,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:07:35,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:07:35,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:07:35,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:07:35,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:07:35,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:07:35,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:07:35,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:07:35,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:07:35,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:07:35,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:07:35,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:07:35,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:07:35,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:07:35,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:07:35,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:07:35,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:07:35,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:07:35,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:07:35,293 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:07:35,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:07:35,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:07:35,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:07:35,295 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:07:35,295 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:07:35,296 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:07:35,296 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:07:35,296 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:07:35,296 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:07:35,297 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:07:35,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:07:35,298 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:07:35,298 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:07:35,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:07:35,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:07:35,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:07:35,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:07:35,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:07:35,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:07:35,300 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:07:35,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:07:35,300 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:07:35,300 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:07:35,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:07:35,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:07:35,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:07:35,301 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:07:35,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:07:35,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:07:35,302 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:07:35,303 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:07:35,304 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:07:35,304 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 704f106dd2de438ac750bf027fbdb25552a79f07 [2020-07-29 02:07:35,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:07:35,616 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:07:35,619 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:07:35,621 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:07:35,621 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:07:35,622 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2020-07-29 02:07:35,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765edee3f/ec8e9a29a84244008b77028decd198f6/FLAGc8c79a8eb [2020-07-29 02:07:36,152 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:07:36,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2020-07-29 02:07:36,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765edee3f/ec8e9a29a84244008b77028decd198f6/FLAGc8c79a8eb [2020-07-29 02:07:36,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765edee3f/ec8e9a29a84244008b77028decd198f6 [2020-07-29 02:07:36,552 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:07:36,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:07:36,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:07:36,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:07:36,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:07:36,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:07:36" (1/1) ... [2020-07-29 02:07:36,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb0c87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:36, skipping insertion in model container [2020-07-29 02:07:36,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:07:36" (1/1) ... [2020-07-29 02:07:36,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:07:36,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:07:36,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:07:36,766 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:07:36,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:07:36,801 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:07:36,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:36 WrapperNode [2020-07-29 02:07:36,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:07:36,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:07:36,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:07:36,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:07:36,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:36" (1/1) ... [2020-07-29 02:07:36,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:36" (1/1) ... [2020-07-29 02:07:36,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:07:36,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:07:36,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:07:36,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:07:36,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:36" (1/1) ... [2020-07-29 02:07:36,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:36" (1/1) ... [2020-07-29 02:07:36,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:36" (1/1) ... [2020-07-29 02:07:36,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:36" (1/1) ... [2020-07-29 02:07:36,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:36" (1/1) ... [2020-07-29 02:07:36,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:36" (1/1) ... [2020-07-29 02:07:36,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:36" (1/1) ... [2020-07-29 02:07:36,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:07:36,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:07:36,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:07:36,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:07:36,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:36,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:07:36,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:07:37,293 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:07:37,293 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-07-29 02:07:37,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:07:37 BoogieIcfgContainer [2020-07-29 02:07:37,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:07:37,298 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:07:37,298 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:07:37,301 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:07:37,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:07:37,303 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:07:36" (1/3) ... [2020-07-29 02:07:37,304 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5286477a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:07:37, skipping insertion in model container [2020-07-29 02:07:37,304 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:07:37,304 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:36" (2/3) ... [2020-07-29 02:07:37,304 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5286477a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:07:37, skipping insertion in model container [2020-07-29 02:07:37,305 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:07:37,305 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:07:37" (3/3) ... [2020-07-29 02:07:37,307 INFO L371 chiAutomizerObserver]: Analyzing ICFG MADWiFi-encode_ie_ok.i [2020-07-29 02:07:37,360 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:07:37,360 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:07:37,361 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:07:37,361 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:07:37,361 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:07:37,361 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:07:37,361 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:07:37,361 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:07:37,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2020-07-29 02:07:37,406 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-07-29 02:07:37,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:07:37,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:07:37,412 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:07:37,412 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:07:37,412 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:07:37,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2020-07-29 02:07:37,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-07-29 02:07:37,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:07:37,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:07:37,418 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:07:37,418 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:07:37,427 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_~p~0, main_~i~0, main_~leader_len~0, main_~bufsize~0, main_~bufsize_0~0, main_~ielen~0;havoc main_~p~0;havoc main_~i~0;havoc main_~leader_len~0;havoc main_~bufsize~0;havoc main_~bufsize_0~0;havoc main_~ielen~0;main_~leader_len~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~bufsize~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~ielen~0 := main_#t~nondet2;havoc main_#t~nondet2; 16#L24true assume !!(main_~leader_len~0 < 1000000); 19#L25true assume !!(main_~bufsize~0 < 1000000); 3#L26true assume !!(main_~ielen~0 < 1000000); 6#L27true assume main_~leader_len~0 > 0; 4#L27-1true assume main_~bufsize~0 > 0; 7#L28true assume main_~ielen~0 > 0; 10#L29true assume !(main_~bufsize~0 < main_~leader_len~0);main_~p~0 := 0;main_~bufsize_0~0 := main_~bufsize~0;main_~bufsize~0 := main_~bufsize~0 - main_~leader_len~0;main_~p~0 := main_~p~0 + main_~leader_len~0; 20#L36true assume !(main_~bufsize~0 < 2 * main_~ielen~0);main_~i~0 := 0; 18#L38-3true [2020-07-29 02:07:37,427 INFO L796 eck$LassoCheckResult]: Loop: 18#L38-3true assume !!(main_~i~0 < main_~ielen~0 && main_~bufsize~0 > 2);__VERIFIER_assert_#in~cond := (if 0 <= main_~p~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8#L7true assume !(0 == __VERIFIER_assert_~cond); 5#L7-2true __VERIFIER_assert_#in~cond := (if 1 + main_~p~0 < main_~bufsize_0~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 21#L7-3true assume !(0 == __VERIFIER_assert_~cond); 15#L7-5true main_~p~0 := 2 + main_~p~0; 22#L38-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 18#L38-3true [2020-07-29 02:07:37,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:07:37,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1511954483, now seen corresponding path program 1 times [2020-07-29 02:07:37,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:07:37,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095210698] [2020-07-29 02:07:37,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:07:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:37,518 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:37,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:37,548 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:07:37,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:07:37,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1862344367, now seen corresponding path program 1 times [2020-07-29 02:07:37,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:07:37,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142779334] [2020-07-29 02:07:37,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:07:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:37,571 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:37,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:37,588 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:07:37,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:07:37,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1690504195, now seen corresponding path program 1 times [2020-07-29 02:07:37,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:07:37,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40435985] [2020-07-29 02:07:37,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:07:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:37,611 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:37,632 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:37,638 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:07:37,779 INFO L342 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-29 02:07:37,779 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-29 02:07:37,883 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 02:07:37,884 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 02:07:37,884 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 02:07:37,884 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 02:07:37,884 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 02:07:37,885 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:37,885 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 02:07:37,885 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 02:07:37,885 INFO L133 ssoRankerPreferences]: Filename of dumped script: MADWiFi-encode_ie_ok.i_Iteration1_Loop [2020-07-29 02:07:37,885 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 02:07:37,886 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 02:07:37,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:37,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:37,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:37,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:37,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:38,175 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 02:07:38,176 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 02:07:38,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:07:38,192 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 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:38,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 02:07:38,240 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:07:38,474 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 02:07:38,477 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 02:07:38,478 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 02:07:38,478 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 02:07:38,478 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 02:07:38,478 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 02:07:38,478 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:38,479 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 02:07:38,479 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 02:07:38,479 INFO L133 ssoRankerPreferences]: Filename of dumped script: MADWiFi-encode_ie_ok.i_Iteration1_Loop [2020-07-29 02:07:38,480 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 02:07:38,480 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 02:07:38,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:38,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:38,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:38,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:38,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:38,718 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 02:07:38,725 INFO L489 LassoAnalysis]: Using template 'affine'. 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 02:07:38,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 02:07:38,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:07:38,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 02:07:38,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:07:38,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:07:38,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:07:38,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 02:07:38,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:38,753 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:07:38,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 02:07:38,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:07:38,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 02:07:38,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:07:38,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:07:38,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:07:38,814 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 02:07:38,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:38,819 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 02:07:38,828 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 02:07:38,828 INFO L444 ModelExtractionUtils]: 1 out of 4 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:07:38,840 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 02:07:38,840 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 02:07:38,841 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 02:07:38,841 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~ielen~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~ielen~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:38,893 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 02:07:38,897 INFO L393 LassoCheck]: Loop: "assume !!(main_~i~0 < main_~ielen~0 && main_~bufsize~0 > 2);__VERIFIER_assert_#in~cond := (if 0 <= main_~p~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;" "assume !(0 == __VERIFIER_assert_~cond);" "__VERIFIER_assert_#in~cond := (if 1 + main_~p~0 < main_~bufsize_0~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;" "assume !(0 == __VERIFIER_assert_~cond);" "main_~p~0 := 2 + main_~p~0;" "main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3;" [2020-07-29 02:07:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:07:38,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:07:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:07:38,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 02:07:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:07:38,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 02:07:38,981 INFO L280 TraceCheckUtils]: 0: Hoare triple {30#unseeded} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_~p~0, main_~i~0, main_~leader_len~0, main_~bufsize~0, main_~bufsize_0~0, main_~ielen~0;havoc main_~p~0;havoc main_~i~0;havoc main_~leader_len~0;havoc main_~bufsize~0;havoc main_~bufsize_0~0;havoc main_~ielen~0;main_~leader_len~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~bufsize~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~ielen~0 := main_#t~nondet2;havoc main_#t~nondet2; {30#unseeded} is VALID [2020-07-29 02:07:38,982 INFO L280 TraceCheckUtils]: 1: Hoare triple {30#unseeded} assume !!(main_~leader_len~0 < 1000000); {30#unseeded} is VALID [2020-07-29 02:07:38,983 INFO L280 TraceCheckUtils]: 2: Hoare triple {30#unseeded} assume !!(main_~bufsize~0 < 1000000); {30#unseeded} is VALID [2020-07-29 02:07:38,984 INFO L280 TraceCheckUtils]: 3: Hoare triple {30#unseeded} assume !!(main_~ielen~0 < 1000000); {30#unseeded} is VALID [2020-07-29 02:07:38,984 INFO L280 TraceCheckUtils]: 4: Hoare triple {30#unseeded} assume main_~leader_len~0 > 0; {30#unseeded} is VALID [2020-07-29 02:07:38,985 INFO L280 TraceCheckUtils]: 5: Hoare triple {30#unseeded} assume main_~bufsize~0 > 0; {30#unseeded} is VALID [2020-07-29 02:07:38,986 INFO L280 TraceCheckUtils]: 6: Hoare triple {30#unseeded} assume main_~ielen~0 > 0; {30#unseeded} is VALID [2020-07-29 02:07:38,987 INFO L280 TraceCheckUtils]: 7: Hoare triple {30#unseeded} assume !(main_~bufsize~0 < main_~leader_len~0);main_~p~0 := 0;main_~bufsize_0~0 := main_~bufsize~0;main_~bufsize~0 := main_~bufsize~0 - main_~leader_len~0;main_~p~0 := main_~p~0 + main_~leader_len~0; {30#unseeded} is VALID [2020-07-29 02:07:38,988 INFO L280 TraceCheckUtils]: 8: Hoare triple {30#unseeded} assume !(main_~bufsize~0 < 2 * main_~ielen~0);main_~i~0 := 0; {30#unseeded} is VALID [2020-07-29 02:07:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:07:38,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 02:07:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:07:39,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 02:07:39,035 INFO L280 TraceCheckUtils]: 0: Hoare triple {33#(>= oldRank0 (+ ULTIMATE.start_main_~ielen~0 (* (- 1) ULTIMATE.start_main_~i~0)))} assume !!(main_~i~0 < main_~ielen~0 && main_~bufsize~0 > 2);__VERIFIER_assert_#in~cond := (if 0 <= main_~p~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {72#(and (<= ULTIMATE.start_main_~ielen~0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~ielen~0))} is VALID [2020-07-29 02:07:39,036 INFO L280 TraceCheckUtils]: 1: Hoare triple {72#(and (<= ULTIMATE.start_main_~ielen~0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~ielen~0))} assume !(0 == __VERIFIER_assert_~cond); {72#(and (<= ULTIMATE.start_main_~ielen~0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~ielen~0))} is VALID [2020-07-29 02:07:39,037 INFO L280 TraceCheckUtils]: 2: Hoare triple {72#(and (<= ULTIMATE.start_main_~ielen~0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~ielen~0))} __VERIFIER_assert_#in~cond := (if 1 + main_~p~0 < main_~bufsize_0~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {72#(and (<= ULTIMATE.start_main_~ielen~0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~ielen~0))} is VALID [2020-07-29 02:07:39,038 INFO L280 TraceCheckUtils]: 3: Hoare triple {72#(and (<= ULTIMATE.start_main_~ielen~0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~ielen~0))} assume !(0 == __VERIFIER_assert_~cond); {72#(and (<= ULTIMATE.start_main_~ielen~0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~ielen~0))} is VALID [2020-07-29 02:07:39,039 INFO L280 TraceCheckUtils]: 4: Hoare triple {72#(and (<= ULTIMATE.start_main_~ielen~0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~ielen~0))} main_~p~0 := 2 + main_~p~0; {72#(and (<= ULTIMATE.start_main_~ielen~0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~ielen~0))} is VALID [2020-07-29 02:07:39,040 INFO L280 TraceCheckUtils]: 5: Hoare triple {72#(and (<= ULTIMATE.start_main_~ielen~0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~ielen~0))} main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; {43#(or (and (> oldRank0 (+ ULTIMATE.start_main_~ielen~0 (* (- 1) ULTIMATE.start_main_~i~0))) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 02:07:39,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:07:39,051 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:07:39,069 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:07:39,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 9 letters. Loop has 6 letters. [2020-07-29 02:07:39,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,080 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-29 02:07:39,082 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states. Second operand 3 states. [2020-07-29 02:07:39,223 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states.. Second operand 3 states. Result 45 states and 62 transitions. Complement of second has 7 states. [2020-07-29 02:07:39,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-29 02:07:39,224 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 02:07:39,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2020-07-29 02:07:39,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-07-29 02:07:39,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:07:39,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:07:39,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 02:07:39,238 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 02:07:39,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:07:39,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:07:39,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 62 transitions. [2020-07-29 02:07:39,247 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 02:07:39,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 02:07:39,253 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 20 states. [2020-07-29 02:07:39,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-07-29 02:07:39,265 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 8 examples of accepted words. [2020-07-29 02:07:39,265 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 02:07:39,272 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 02:07:39,273 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 02:07:39,273 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 45 states and 62 transitions. cyclomatic complexity: 19 [2020-07-29 02:07:39,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 62 transitions. cyclomatic complexity: 19 [2020-07-29 02:07:39,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 02:07:39,274 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 02:07:39,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 9 letters. Loop has 6 letters. [2020-07-29 02:07:39,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 9 letters. Loop has 6 letters. [2020-07-29 02:07:39,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 9 letters. Loop has 6 letters. [2020-07-29 02:07:39,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:07:39,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:07:39,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:07:39,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 45 letters. Loop has 45 letters. [2020-07-29 02:07:39,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 45 letters. Loop has 45 letters. [2020-07-29 02:07:39,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 45 letters. Loop has 45 letters. [2020-07-29 02:07:39,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 20 letters. Loop has 20 letters. [2020-07-29 02:07:39,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 20 letters. Loop has 20 letters. [2020-07-29 02:07:39,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 20 letters. Loop has 20 letters. [2020-07-29 02:07:39,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 02:07:39,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 02:07:39,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 5 letters. Loop has 5 letters. [2020-07-29 02:07:39,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 9 letters. Loop has 6 letters. [2020-07-29 02:07:39,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 9 letters. Loop has 6 letters. [2020-07-29 02:07:39,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 9 letters. Loop has 6 letters. [2020-07-29 02:07:39,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 12 letters. Loop has 6 letters. [2020-07-29 02:07:39,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 12 letters. Loop has 6 letters. [2020-07-29 02:07:39,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 12 letters. Loop has 6 letters. [2020-07-29 02:07:39,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 11 letters. Loop has 6 letters. [2020-07-29 02:07:39,298 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 11 letters. Loop has 6 letters. [2020-07-29 02:07:39,298 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 11 letters. Loop has 6 letters. [2020-07-29 02:07:39,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 14 letters. Loop has 6 letters. [2020-07-29 02:07:39,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 14 letters. Loop has 6 letters. [2020-07-29 02:07:39,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 14 letters. Loop has 6 letters. [2020-07-29 02:07:39,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 10 letters. Loop has 6 letters. [2020-07-29 02:07:39,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 10 letters. Loop has 6 letters. [2020-07-29 02:07:39,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 10 letters. Loop has 6 letters. [2020-07-29 02:07:39,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 13 letters. Loop has 7 letters. [2020-07-29 02:07:39,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 13 letters. Loop has 7 letters. [2020-07-29 02:07:39,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 13 letters. Loop has 7 letters. [2020-07-29 02:07:39,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 11 letters. Loop has 7 letters. [2020-07-29 02:07:39,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 11 letters. Loop has 7 letters. [2020-07-29 02:07:39,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 11 letters. Loop has 7 letters. [2020-07-29 02:07:39,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 13 letters. Loop has 6 letters. [2020-07-29 02:07:39,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 13 letters. Loop has 6 letters. [2020-07-29 02:07:39,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 13 letters. Loop has 6 letters. [2020-07-29 02:07:39,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 02:07:39,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 02:07:39,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 2 letters. Loop has 1 letters. [2020-07-29 02:07:39,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:07:39,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:07:39,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 45 states and 62 transitions. cyclomatic complexity: 19 Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:07:39,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,317 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 02:07:39,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 02:07:39,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2020-07-29 02:07:39,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 9 letters. Loop has 6 letters. [2020-07-29 02:07:39,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 15 letters. Loop has 6 letters. [2020-07-29 02:07:39,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 9 letters. Loop has 12 letters. [2020-07-29 02:07:39,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:39,324 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 62 transitions. cyclomatic complexity: 19 [2020-07-29 02:07:39,336 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 02:07:39,340 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 0 states and 0 transitions. [2020-07-29 02:07:39,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 02:07:39,341 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 02:07:39,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 02:07:39,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:07:39,342 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 02:07:39,342 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 02:07:39,342 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 02:07:39,342 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:07:39,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 02:07:39,343 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 02:07:39,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 02:07:39,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:07:39 BoogieIcfgContainer [2020-07-29 02:07:39,353 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:07:39,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:07:39,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:07:39,354 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:07:39,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:07:37" (3/4) ... [2020-07-29 02:07:39,359 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 02:07:39,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:07:39,364 INFO L168 Benchmark]: Toolchain (without parser) took 2808.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 950.8 MB in the beginning and 922.8 MB in the end (delta: 28.1 MB). Peak memory consumption was 160.2 MB. Max. memory is 11.5 GB. [2020-07-29 02:07:39,365 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:07:39,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.00 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:07:39,367 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -188.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 02:07:39,368 INFO L168 Benchmark]: Boogie Preprocessor took 20.09 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 02:07:39,370 INFO L168 Benchmark]: RCFGBuilder took 383.62 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2020-07-29 02:07:39,371 INFO L168 Benchmark]: BuchiAutomizer took 2054.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 922.8 MB in the end (delta: 168.6 MB). Peak memory consumption was 168.6 MB. Max. memory is 11.5 GB. [2020-07-29 02:07:39,372 INFO L168 Benchmark]: Witness Printer took 6.14 ms. Allocated memory is still 1.2 GB. Free memory is still 922.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:07:39,387 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 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 246.00 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 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 90.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -188.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.09 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 383.62 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2054.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 922.8 MB in the end (delta: 168.6 MB). Peak memory consumption was 168.6 MB. Max. memory is 11.5 GB. * Witness Printer took 6.14 ms. Allocated memory is still 1.2 GB. Free memory is still 922.8 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 ielen + -1 * i and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 27 SDtfs, 30 SDslu, 10 SDs, 0 SdLazy, 6 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax100 hnf100 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf95 smp100 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...