./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaB16.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/PastaB16.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 ee984bca7200ddfe2e041842f64b6ddcaef24aa5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:35:58,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:35:58,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:35:58,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:35:58,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:35:58,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:35:58,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:35:58,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:35:58,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:35:58,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:35:58,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:35:58,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:35:58,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:35:58,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:35:58,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:35:58,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:35:58,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:35:58,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:35:58,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:35:58,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:35:58,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:35:58,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:35:58,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:35:58,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:35:58,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:35:58,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:35:58,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:35:58,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:35:58,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:35:58,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:35:58,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:35:58,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:35:58,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:35:58,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:35:58,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:35:58,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:35:58,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:35:58,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:35:58,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:35:58,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:35:58,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:35:58,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:35:58,575 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:35:58,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:35:58,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:35:58,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:35:58,577 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:35:58,578 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:35:58,578 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:35:58,578 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:35:58,578 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:35:58,578 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:35:58,579 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:35:58,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:35:58,580 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:35:58,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:35:58,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:35:58,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:35:58,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:35:58,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:35:58,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:35:58,582 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:35:58,582 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:35:58,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:35:58,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:35:58,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:35:58,583 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:35:58,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:35:58,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:35:58,583 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:35:58,583 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:35:58,584 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:35:58,584 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 -> ee984bca7200ddfe2e041842f64b6ddcaef24aa5 [2020-10-20 06:35:58,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:35:58,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:35:58,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:35:58,887 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:35:58,890 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:35:58,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaB16.c [2020-10-20 06:35:58,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e003d38b/a2c11ad6027f473f9364b6b826fc0eef/FLAG41922fe1a [2020-10-20 06:35:59,526 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:35:59,527 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaB16.c [2020-10-20 06:35:59,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e003d38b/a2c11ad6027f473f9364b6b826fc0eef/FLAG41922fe1a [2020-10-20 06:35:59,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e003d38b/a2c11ad6027f473f9364b6b826fc0eef [2020-10-20 06:35:59,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:35:59,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:35:59,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:35:59,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:35:59,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:35:59,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:35:59" (1/1) ... [2020-10-20 06:35:59,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6721755d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:59, skipping insertion in model container [2020-10-20 06:35:59,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:35:59" (1/1) ... [2020-10-20 06:35:59,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:36:00,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:36:00,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:36:00,245 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:36:00,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:36:00,282 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:36:00,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:00 WrapperNode [2020-10-20 06:36:00,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:36:00,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:36:00,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:36:00,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:36:00,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:00" (1/1) ... [2020-10-20 06:36:00,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:00" (1/1) ... [2020-10-20 06:36:00,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:36:00,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:36:00,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:36:00,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:36:00,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:00" (1/1) ... [2020-10-20 06:36:00,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:00" (1/1) ... [2020-10-20 06:36:00,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:00" (1/1) ... [2020-10-20 06:36:00,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:00" (1/1) ... [2020-10-20 06:36:00,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:00" (1/1) ... [2020-10-20 06:36:00,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:00" (1/1) ... [2020-10-20 06:36:00,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:00" (1/1) ... [2020-10-20 06:36:00,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:36:00,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:36:00,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:36:00,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:36:00,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:36:00,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:36:00,590 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:36:00,590 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 06:36:00,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:36:00 BoogieIcfgContainer [2020-10-20 06:36:00,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:36:00,593 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:36:00,593 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:36:00,597 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:36:00,598 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:36:00,599 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:35:59" (1/3) ... [2020-10-20 06:36:00,600 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@168a75a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:36:00, skipping insertion in model container [2020-10-20 06:36:00,600 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:36:00,601 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:00" (2/3) ... [2020-10-20 06:36:00,601 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@168a75a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:36:00, skipping insertion in model container [2020-10-20 06:36:00,601 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:36:00,602 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:36:00" (3/3) ... [2020-10-20 06:36:00,603 INFO L373 chiAutomizerObserver]: Analyzing ICFG PastaB16.c [2020-10-20 06:36:00,649 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:36:00,649 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:36:00,649 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:36:00,650 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:36:00,650 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:36:00,650 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:36:00,650 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:36:00,650 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:36:00,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-10-20 06:36:00,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:36:00,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:36:00,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:36:00,691 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:36:00,691 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:36:00,692 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:36:00,692 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-10-20 06:36:00,693 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:36:00,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:36:00,693 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:36:00,694 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:36:00,694 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:36:00,709 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L11-2true [2020-10-20 06:36:00,710 INFO L796 eck$LassoCheckResult]: Loop: 9#L11-2true assume !!(main_~x~0 > 0); 3#L12-2true assume !(main_~y~0 > 0); 10#L12-3true main_~x~0 := main_~x~0 - 1; 9#L11-2true [2020-10-20 06:36:00,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:00,717 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-20 06:36:00,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:00,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138278391] [2020-10-20 06:36:00,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:00,811 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:00,815 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:00,832 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:00,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:00,833 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2020-10-20 06:36:00,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:00,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71520566] [2020-10-20 06:36:00,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:00,843 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:00,846 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:00,848 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:00,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:00,850 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2020-10-20 06:36:00,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:00,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950031374] [2020-10-20 06:36:00,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:00,857 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:00,861 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:00,863 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:00,962 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:36:00,963 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:36:00,963 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:36:00,963 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:36:00,964 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:36:00,964 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:00,964 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:36:00,964 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:36:00,964 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration1_Loop [2020-10-20 06:36:00,965 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:36:00,965 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:36:01,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:01,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:01,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:01,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:01,120 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:36:01,121 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:01,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:36:01,139 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:36:01,139 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:01,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:36:01,167 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:36:01,168 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:01,210 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:36:01,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:36:01,281 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:36:01,283 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:36:01,283 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:36:01,283 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:36:01,283 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:36:01,283 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:36:01,283 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,283 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:36:01,284 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:36:01,284 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration1_Loop [2020-10-20 06:36:01,284 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:36:01,285 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:36:01,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:01,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:01,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:01,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:01,365 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:36:01,371 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:36:01,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:36:01,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:01,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:01,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:01,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:01,394 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:36:01,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,416 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:36:01,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:36:01,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:01,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:01,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:01,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:01,484 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:36:01,487 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:36:01,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:36:01,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:01,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:36:01,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:01,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:01,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:01,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:36:01,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,563 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:36:01,572 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:36:01,572 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:36:01,586 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:36:01,586 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:36:01,587 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:36:01,588 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,629 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:36:01,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:36:01,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:36:01,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:36:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:36:01,686 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:36:01,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:36:01,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:36:01,718 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:36:01,719 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-10-20 06:36:01,771 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2020-10-20 06:36:01,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 06:36:01,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:36:01,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-10-20 06:36:01,776 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2020-10-20 06:36:01,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:01,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2020-10-20 06:36:01,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:01,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2020-10-20 06:36:01,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:01,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2020-10-20 06:36:01,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:36:01,787 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2020-10-20 06:36:01,788 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-10-20 06:36:01,788 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-10-20 06:36:01,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-10-20 06:36:01,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:36:01,789 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-20 06:36:01,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-10-20 06:36:01,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-10-20 06:36:01,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-20 06:36:01,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2020-10-20 06:36:01,818 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-10-20 06:36:01,818 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-10-20 06:36:01,818 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:36:01,818 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2020-10-20 06:36:01,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:36:01,819 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:36:01,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:36:01,819 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 06:36:01,819 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:36:01,820 INFO L794 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 74#L11-2 assume !!(main_~x~0 > 0); 70#L12-2 [2020-10-20 06:36:01,820 INFO L796 eck$LassoCheckResult]: Loop: 70#L12-2 assume !!(main_~y~0 > 0);main_~y~0 := main_~y~0 - 1; 70#L12-2 [2020-10-20 06:36:01,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:01,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-20 06:36:01,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:01,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214229177] [2020-10-20 06:36:01,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:01,825 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:01,828 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:01,829 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:01,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:01,830 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-10-20 06:36:01,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:01,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023931839] [2020-10-20 06:36:01,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:01,834 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:01,848 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:01,849 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:01,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:01,849 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2020-10-20 06:36:01,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:01,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109067025] [2020-10-20 06:36:01,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:01,854 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:01,866 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:01,868 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:01,905 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:36:01,905 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:36:01,905 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:36:01,906 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:36:01,906 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:36:01,906 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,906 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:36:01,906 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:36:01,906 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration2_Loop [2020-10-20 06:36:01,906 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:36:01,906 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:36:01,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:01,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:01,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:01,962 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:36:01,963 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:36:01,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:01,973 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,977 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:36:01,977 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:02,006 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:02,006 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:36:02,010 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:36:02,010 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:02,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:02,035 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:02,064 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:36:02,064 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:36:02,095 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:36:02,097 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:36:02,097 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:36:02,097 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:36:02,097 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:36:02,098 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:36:02,098 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:02,098 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:36:02,098 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:36:02,098 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration2_Loop [2020-10-20 06:36:02,098 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:36:02,098 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:36:02,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:02,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:02,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:02,172 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:36:02,172 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:36:02,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:36:02,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:02,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:02,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:02,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:02,197 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:36:02,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:02,202 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:36:02,248 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:36:02,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:02,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:36:02,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:02,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:02,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:02,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:36:02,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:02,261 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:36:02,264 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-10-20 06:36:02,265 INFO L444 ModelExtractionUtils]: 1 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 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:02,269 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:36:02,269 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:36:02,269 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:36:02,269 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-10-20 06:36:02,290 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:36:02,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:36:02,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:36:02,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:36:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:36:02,314 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:36:02,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:36:02,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:36:02,315 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 [2020-10-20 06:36:02,315 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-10-20 06:36:02,323 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 4 states. [2020-10-20 06:36:02,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:36:02,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-20 06:36:02,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-10-20 06:36:02,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-20 06:36:02,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:02,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2020-10-20 06:36:02,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:02,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2020-10-20 06:36:02,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:02,326 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2020-10-20 06:36:02,327 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:36:02,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2020-10-20 06:36:02,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:36:02,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:36:02,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:36:02,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:36:02,328 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:36:02,328 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:36:02,328 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:36:02,328 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 06:36:02,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:36:02,328 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:36:02,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:36:02,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:36:02 BoogieIcfgContainer [2020-10-20 06:36:02,335 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:36:02,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:36:02,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:36:02,336 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:36:02,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:36:00" (3/4) ... [2020-10-20 06:36:02,340 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:36:02,341 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:36:02,343 INFO L168 Benchmark]: Toolchain (without parser) took 2381.42 ms. Allocated memory was 44.0 MB in the beginning and 49.8 MB in the end (delta: 5.8 MB). Free memory was 24.8 MB in the beginning and 20.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:02,344 INFO L168 Benchmark]: CDTParser took 1.01 ms. Allocated memory is still 32.5 MB. Free memory was 11.0 MB in the beginning and 10.9 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 06:36:02,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.77 ms. Allocated memory is still 44.0 MB. Free memory was 24.0 MB in the beginning and 14.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:02,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.24 ms. Allocated memory is still 44.0 MB. Free memory was 14.7 MB in the beginning and 26.2 MB in the end (delta: -11.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:02,347 INFO L168 Benchmark]: Boogie Preprocessor took 24.96 ms. Allocated memory is still 44.0 MB. Free memory was 26.2 MB in the beginning and 25.2 MB in the end (delta: 974.0 kB). Peak memory consumption was 974.0 kB. Max. memory is 14.3 GB. [2020-10-20 06:36:02,347 INFO L168 Benchmark]: RCFGBuilder took 231.20 ms. Allocated memory is still 44.0 MB. Free memory was 25.1 MB in the beginning and 16.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:02,348 INFO L168 Benchmark]: BuchiAutomizer took 1742.25 ms. Allocated memory was 44.0 MB in the beginning and 49.8 MB in the end (delta: 5.8 MB). Free memory was 16.2 MB in the beginning and 21.0 MB in the end (delta: -4.8 MB). Peak memory consumption was 980.0 kB. Max. memory is 14.3 GB. [2020-10-20 06:36:02,349 INFO L168 Benchmark]: Witness Printer took 4.85 ms. Allocated memory is still 49.8 MB. Free memory was 20.6 MB in the beginning and 20.2 MB in the end (delta: 412.7 kB). Peak memory consumption was 412.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:36:02,354 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.01 ms. Allocated memory is still 32.5 MB. Free memory was 11.0 MB in the beginning and 10.9 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 316.77 ms. Allocated memory is still 44.0 MB. Free memory was 24.0 MB in the beginning and 14.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 50.24 ms. Allocated memory is still 44.0 MB. Free memory was 14.7 MB in the beginning and 26.2 MB in the end (delta: -11.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 24.96 ms. Allocated memory is still 44.0 MB. Free memory was 26.2 MB in the beginning and 25.2 MB in the end (delta: 974.0 kB). Peak memory consumption was 974.0 kB. Max. memory is 14.3 GB. * RCFGBuilder took 231.20 ms. Allocated memory is still 44.0 MB. Free memory was 25.1 MB in the beginning and 16.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 1742.25 ms. Allocated memory was 44.0 MB in the beginning and 49.8 MB in the end (delta: 5.8 MB). Free memory was 16.2 MB in the beginning and 21.0 MB in the end (delta: -4.8 MB). Peak memory consumption was 980.0 kB. Max. memory is 14.3 GB. * Witness Printer took 4.85 ms. Allocated memory is still 49.8 MB. Free memory was 20.6 MB in the beginning and 20.2 MB in the end (delta: 412.7 kB). Peak memory consumption was 412.7 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. 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 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 13 SDslu, 10 SDs, 0 SdLazy, 9 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf98 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 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...