./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 6c24879c 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_1.5.800.v20200727-1323.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 af8e82454aa21445af9cfd1f5b129d72eb611482c0d2720e1036f8b2ab15d2d6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:11:32,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:11:32,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:11:32,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:11:32,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:11:32,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:11:32,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:11:32,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:11:32,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:11:32,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:11:32,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:11:32,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:11:32,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:11:32,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:11:32,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:11:32,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:11:32,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:11:32,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:11:32,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:11:32,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:11:32,518 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:11:32,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:11:32,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:11:32,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:11:32,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:11:32,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:11:32,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:11:32,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:11:32,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:11:32,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:11:32,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:11:32,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:11:32,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:11:32,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:11:32,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:11:32,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:11:32,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:11:32,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:11:32,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:11:32,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:11:32,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:11:32,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:11:32,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-13 03:11:32,547 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:11:32,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:11:32,548 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:11:32,548 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:11:32,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:11:32,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:11:32,549 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:11:32,549 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:11:32,549 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:11:32,550 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:11:32,550 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:11:32,550 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:11:32,550 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:11:32,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:11:32,550 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:11:32,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:11:32,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:11:32,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:11:32,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:11:32,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:11:32,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:11:32,554 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:11:32,554 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:11:32,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:11:32,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:11:32,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:11:32,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:11:32,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:11:32,556 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:11:32,556 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af8e82454aa21445af9cfd1f5b129d72eb611482c0d2720e1036f8b2ab15d2d6 [2022-07-13 03:11:32,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:11:32,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:11:32,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:11:32,750 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:11:32,751 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:11:32,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaB16.c [2022-07-13 03:11:32,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b690d5d/63f06eaed190432bbb0ee4fb83825a35/FLAG6d3c4c100 [2022-07-13 03:11:33,177 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:11:33,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaB16.c [2022-07-13 03:11:33,181 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b690d5d/63f06eaed190432bbb0ee4fb83825a35/FLAG6d3c4c100 [2022-07-13 03:11:33,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b690d5d/63f06eaed190432bbb0ee4fb83825a35 [2022-07-13 03:11:33,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:11:33,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:11:33,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:11:33,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:11:33,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:11:33,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:11:33" (1/1) ... [2022-07-13 03:11:33,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ab7f5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:33, skipping insertion in model container [2022-07-13 03:11:33,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:11:33" (1/1) ... [2022-07-13 03:11:33,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:11:33,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:11:33,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:11:33,331 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:11:33,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:11:33,357 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:11:33,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:33 WrapperNode [2022-07-13 03:11:33,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:11:33,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:11:33,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:11:33,359 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:11:33,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:33" (1/1) ... [2022-07-13 03:11:33,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:33" (1/1) ... [2022-07-13 03:11:33,378 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-07-13 03:11:33,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:11:33,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:11:33,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:11:33,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:11:33,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:33" (1/1) ... [2022-07-13 03:11:33,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:33" (1/1) ... [2022-07-13 03:11:33,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:33" (1/1) ... [2022-07-13 03:11:33,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:33" (1/1) ... [2022-07-13 03:11:33,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:33" (1/1) ... [2022-07-13 03:11:33,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:33" (1/1) ... [2022-07-13 03:11:33,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:33" (1/1) ... [2022-07-13 03:11:33,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:11:33,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:11:33,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:11:33,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:11:33,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:33" (1/1) ... [2022-07-13 03:11:33,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:33,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:33,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:33,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-13 03:11:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:11:33,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:11:33,492 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:11:33,493 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:11:33,539 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:11:33,543 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:11:33,544 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 03:11:33,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:11:33 BoogieIcfgContainer [2022-07-13 03:11:33,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:11:33,547 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:11:33,548 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:11:33,550 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:11:33,550 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:11:33,550 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:11:33" (1/3) ... [2022-07-13 03:11:33,551 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74579c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:11:33, skipping insertion in model container [2022-07-13 03:11:33,551 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:11:33,551 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:33" (2/3) ... [2022-07-13 03:11:33,552 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74579c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:11:33, skipping insertion in model container [2022-07-13 03:11:33,552 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:11:33,552 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:11:33" (3/3) ... [2022-07-13 03:11:33,553 INFO L354 chiAutomizerObserver]: Analyzing ICFG PastaB16.c [2022-07-13 03:11:33,586 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:11:33,587 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:11:33,587 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:11:33,587 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:11:33,587 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:11:33,587 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:11:33,587 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:11:33,587 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:11:33,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:33,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-13 03:11:33,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:33,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:33,606 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:11:33,606 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:11:33,607 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:11:33,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:33,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-13 03:11:33,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:33,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:33,609 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:11:33,609 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:11:33,613 INFO L752 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 9#L11-2true [2022-07-13 03:11:33,614 INFO L754 eck$LassoCheckResult]: Loop: 9#L11-2true assume !!(main_~x~0#1 > 0); 2#L12-2true assume !(main_~y~0#1 > 0); 6#L12-3true main_~x~0#1 := main_~x~0#1 - 1; 9#L11-2true [2022-07-13 03:11:33,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:33,620 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-13 03:11:33,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:33,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546237715] [2022-07-13 03:11:33,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:33,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:33,679 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:33,704 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:33,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:33,711 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2022-07-13 03:11:33,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:33,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814412058] [2022-07-13 03:11:33,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:33,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:33,733 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:33,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:33,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:33,745 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2022-07-13 03:11:33,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:33,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4429564] [2022-07-13 03:11:33,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:33,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:33,757 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:33,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:33,862 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:33,863 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:33,863 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:33,863 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:33,863 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:33,863 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:33,863 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:33,864 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:33,864 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration1_Loop [2022-07-13 03:11:33,864 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:33,864 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:33,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:33,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:33,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:33,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:34,001 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:34,002 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:34,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:34,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:34,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-13 03:11:34,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:34,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:34,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:34,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:34,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:34,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-13 03:11:34,039 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:34,039 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:34,065 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:34,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-13 03:11:34,068 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:34,068 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:34,069 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:34,069 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:34,069 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:34,069 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,069 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:34,069 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:34,069 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration1_Loop [2022-07-13 03:11:34,069 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:34,069 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:34,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:34,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:34,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:34,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:34,127 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:34,130 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:34,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:34,132 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:34,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-13 03:11:34,135 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:34,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:34,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:34,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:34,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:34,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:34,143 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:34,143 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:34,159 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:34,165 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:11:34,165 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:11:34,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:34,168 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:34,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-13 03:11:34,171 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:34,172 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:34,172 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:34,172 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-07-13 03:11:34,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:34,189 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:34,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:34,210 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:34,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:34,221 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:34,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:34,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:34,264 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 [2022-07-13 03:11:34,265 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:34,286 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 36 transitions. Complement of second has 7 states. [2022-07-13 03:11:34,288 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 [2022-07-13 03:11:34,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:34,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2022-07-13 03:11:34,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2022-07-13 03:11:34,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:34,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2022-07-13 03:11:34,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:34,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2022-07-13 03:11:34,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:34,295 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2022-07-13 03:11:34,298 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:11:34,301 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2022-07-13 03:11:34,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-07-13 03:11:34,302 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-13 03:11:34,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-07-13 03:11:34,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:34,302 INFO L369 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-13 03:11:34,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-07-13 03:11:34,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2022-07-13 03:11:34,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:34,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2022-07-13 03:11:34,336 INFO L392 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-07-13 03:11:34,336 INFO L374 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-07-13 03:11:34,337 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:11:34,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2022-07-13 03:11:34,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:11:34,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:34,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:34,338 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 03:11:34,338 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-13 03:11:34,338 INFO L752 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 79#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 81#L11-2 assume !!(main_~x~0#1 > 0); 75#L12-2 [2022-07-13 03:11:34,341 INFO L754 eck$LassoCheckResult]: Loop: 75#L12-2 assume !!(main_~y~0#1 > 0);main_~y~0#1 := main_~y~0#1 - 1; 75#L12-2 [2022-07-13 03:11:34,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:34,341 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-13 03:11:34,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:34,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58388243] [2022-07-13 03:11:34,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:34,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:34,345 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:34,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:34,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:34,346 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2022-07-13 03:11:34,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:34,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247502138] [2022-07-13 03:11:34,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:34,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:34,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-07-13 03:11:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:34,351 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:34,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:34,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:34,353 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2022-07-13 03:11:34,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:34,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288415437] [2022-07-13 03:11:34,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:34,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:34,356 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:34,358 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:34,368 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:34,369 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:34,369 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:34,369 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:34,369 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:34,369 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,369 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:34,369 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:34,369 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration2_Loop [2022-07-13 03:11:34,369 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:34,369 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:34,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:34,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:34,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:34,414 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:34,415 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:34,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:34,416 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:34,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-13 03:11:34,418 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:34,418 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:34,440 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:34,440 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: [] [2022-07-13 03:11:34,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:34,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:34,457 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:34,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-13 03:11:34,461 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:34,461 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:34,472 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:34,472 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: [] [2022-07-13 03:11:34,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:34,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:34,490 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:34,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-13 03:11:34,496 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:34,496 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:34,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-07-13 03:11:34,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:34,524 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:34,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-13 03:11:34,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:34,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:34,572 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:34,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:34,576 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:34,576 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:34,576 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:34,576 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:34,576 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:34,576 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,576 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:34,576 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:34,576 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration2_Loop [2022-07-13 03:11:34,576 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:34,576 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:34,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:34,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:34,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:34,610 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:34,611 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:34,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:34,616 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:34,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-13 03:11:34,618 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:34,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:34,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:34,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:34,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:34,630 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:34,630 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:34,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:34,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:34,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:34,670 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:34,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-13 03:11:34,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:34,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:34,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:34,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:34,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:34,686 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:34,686 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:34,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:34,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-07-13 03:11:34,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:34,713 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:34,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-13 03:11:34,715 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:34,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:34,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:34,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:34,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:34,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:34,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:34,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:34,731 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:34,733 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:11:34,733 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:11:34,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:34,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:34,744 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:34,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-13 03:11:34,746 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:34,746 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:34,746 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:34,746 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-07-13 03:11:34,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-07-13 03:11:34,763 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:34,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:34,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:34,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:34,782 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:34,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:34,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:34,783 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 [2022-07-13 03:11:34,783 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:34,788 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 19 transitions. Complement of second has 4 states. [2022-07-13 03:11:34,789 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 [2022-07-13 03:11:34,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:34,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2022-07-13 03:11:34,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 1 letters. [2022-07-13 03:11:34,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:34,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 1 letters. [2022-07-13 03:11:34,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:34,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2022-07-13 03:11:34,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:34,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2022-07-13 03:11:34,790 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:11:34,790 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2022-07-13 03:11:34,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-13 03:11:34,791 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-13 03:11:34,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-13 03:11:34,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:11:34,791 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:11:34,791 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:11:34,791 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:11:34,791 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 03:11:34,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-13 03:11:34,791 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:11:34,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-13 03:11:34,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:11:34 BoogieIcfgContainer [2022-07-13 03:11:34,796 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:11:34,796 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:11:34,796 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:11:34,796 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:11:34,797 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:11:33" (3/4) ... [2022-07-13 03:11:34,798 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 03:11:34,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:11:34,799 INFO L158 Benchmark]: Toolchain (without parser) took 1599.94ms. Allocated memory is still 113.2MB. Free memory was 78.4MB in the beginning and 65.7MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 03:11:34,799 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory was 87.1MB in the beginning and 87.1MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:11:34,800 INFO L158 Benchmark]: CACSL2BoogieTranslator took 157.82ms. Allocated memory is still 113.2MB. Free memory was 78.1MB in the beginning and 89.3MB in the end (delta: -11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:11:34,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.30ms. Allocated memory is still 113.2MB. Free memory was 89.3MB in the beginning and 88.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:11:34,800 INFO L158 Benchmark]: Boogie Preprocessor took 13.62ms. Allocated memory is still 113.2MB. Free memory was 88.1MB in the beginning and 87.3MB in the end (delta: 751.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:11:34,800 INFO L158 Benchmark]: RCFGBuilder took 151.03ms. Allocated memory is still 113.2MB. Free memory was 87.3MB in the beginning and 79.5MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-13 03:11:34,801 INFO L158 Benchmark]: BuchiAutomizer took 1248.39ms. Allocated memory is still 113.2MB. Free memory was 78.9MB in the beginning and 66.4MB in the end (delta: 12.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2022-07-13 03:11:34,801 INFO L158 Benchmark]: Witness Printer took 2.31ms. Allocated memory is still 113.2MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:11:34,802 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory was 87.1MB in the beginning and 87.1MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 157.82ms. Allocated memory is still 113.2MB. Free memory was 78.1MB in the beginning and 89.3MB in the end (delta: -11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.30ms. Allocated memory is still 113.2MB. Free memory was 89.3MB in the beginning and 88.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.62ms. Allocated memory is still 113.2MB. Free memory was 88.1MB in the beginning and 87.3MB in the end (delta: 751.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 151.03ms. Allocated memory is still 113.2MB. Free memory was 87.3MB in the beginning and 79.5MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1248.39ms. Allocated memory is still 113.2MB. Free memory was 78.9MB in the beginning and 66.4MB in the end (delta: 12.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Witness Printer took 2.31ms. Allocated memory is still 113.2MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * 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 1.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 12 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf100 lsp41 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 40ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-13 03:11:34,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:35,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE