./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/c.03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 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/c.03.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 00dc17c984df5ef18e52428a0e023f5c7f435e241bde642a6a36d0c35bef02ae --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:31:53,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:31:53,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:31:53,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:31:53,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:31:53,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:31:53,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:31:53,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:31:53,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:31:53,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:31:53,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:31:53,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:31:53,623 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:31:53,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:31:53,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:31:53,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:31:53,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:31:53,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:31:53,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:31:53,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:31:53,642 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:31:53,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:31:53,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:31:53,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:31:53,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:31:53,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:31:53,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:31:53,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:31:53,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:31:53,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:31:53,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:31:53,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:31:53,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:31:53,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:31:53,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:31:53,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:31:53,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:31:53,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:31:53,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:31:53,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:31:53,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:31:53,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:31:53,665 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-22 01:31:53,704 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:31:53,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:31:53,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:31:53,705 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:31:53,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:31:53,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:31:53,707 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:31:53,707 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:31:53,708 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:31:53,708 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:31:53,709 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:31:53,709 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:31:53,709 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:31:53,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:31:53,709 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:31:53,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:31:53,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:31:53,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:31:53,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:31:53,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:31:53,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:31:53,711 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:31:53,711 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:31:53,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:31:53,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:31:53,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:31:53,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:31:53,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:31:53,713 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:31:53,714 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00dc17c984df5ef18e52428a0e023f5c7f435e241bde642a6a36d0c35bef02ae [2022-07-22 01:31:54,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:31:54,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:31:54,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:31:54,072 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:31:54,072 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:31:54,074 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/c.03.c [2022-07-22 01:31:54,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbe25d274/0418d7cb8f6c45e5bd793b89256f45dc/FLAG0e72b4536 [2022-07-22 01:31:54,583 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:31:54,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.03.c [2022-07-22 01:31:54,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbe25d274/0418d7cb8f6c45e5bd793b89256f45dc/FLAG0e72b4536 [2022-07-22 01:31:55,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbe25d274/0418d7cb8f6c45e5bd793b89256f45dc [2022-07-22 01:31:55,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:31:55,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:31:55,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:31:55,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:31:55,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:31:55,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:31:55" (1/1) ... [2022-07-22 01:31:55,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c30dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:55, skipping insertion in model container [2022-07-22 01:31:55,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:31:55" (1/1) ... [2022-07-22 01:31:55,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:31:55,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:31:55,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:31:55,144 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:31:55,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:31:55,169 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:31:55,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:55 WrapperNode [2022-07-22 01:31:55,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:31:55,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:31:55,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:31:55,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:31:55,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:55" (1/1) ... [2022-07-22 01:31:55,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:55" (1/1) ... [2022-07-22 01:31:55,204 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-07-22 01:31:55,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:31:55,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:31:55,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:31:55,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:31:55,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:55" (1/1) ... [2022-07-22 01:31:55,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:55" (1/1) ... [2022-07-22 01:31:55,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:55" (1/1) ... [2022-07-22 01:31:55,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:55" (1/1) ... [2022-07-22 01:31:55,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:55" (1/1) ... [2022-07-22 01:31:55,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:55" (1/1) ... [2022-07-22 01:31:55,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:55" (1/1) ... [2022-07-22 01:31:55,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:31:55,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:31:55,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:31:55,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:31:55,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:55" (1/1) ... [2022-07-22 01:31:55,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:55,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:55,254 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) [2022-07-22 01:31:55,269 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 [2022-07-22 01:31:55,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:31:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:31:55,346 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:31:55,347 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:31:55,427 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:31:55,434 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:31:55,435 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 01:31:55,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:31:55 BoogieIcfgContainer [2022-07-22 01:31:55,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:31:55,438 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:31:55,439 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:31:55,441 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:31:55,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:31:55,443 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:31:55" (1/3) ... [2022-07-22 01:31:55,444 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12fe02cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:31:55, skipping insertion in model container [2022-07-22 01:31:55,444 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:31:55,444 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:31:55" (2/3) ... [2022-07-22 01:31:55,444 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12fe02cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:31:55, skipping insertion in model container [2022-07-22 01:31:55,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:31:55,445 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:31:55" (3/3) ... [2022-07-22 01:31:55,447 INFO L354 chiAutomizerObserver]: Analyzing ICFG c.03.c [2022-07-22 01:31:55,507 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:31:55,508 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:31:55,508 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:31:55,508 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:31:55,508 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:31:55,508 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:31:55,509 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:31:55,509 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:31:55,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) [2022-07-22 01:31:55,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:31:55,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:55,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:55,547 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:31:55,548 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:31:55,548 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:31:55,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) [2022-07-22 01:31:55,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:31:55,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:55,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:55,551 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:31:55,551 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:31:55,556 INFO L752 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#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_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~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;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 2#L12-2true [2022-07-22 01:31:55,557 INFO L754 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(main_~x~0#1 < main_~y~0#1 && main_~z~0#1 < 2147483647); 8#L12true assume !(main_~x~0#1 < main_~z~0#1);main_~z~0#1 := 1 + main_~z~0#1; 2#L12-2true [2022-07-22 01:31:55,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:55,564 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-22 01:31:55,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:55,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276574201] [2022-07-22 01:31:55,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:55,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:55,650 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:55,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:55,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:55,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-07-22 01:31:55,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:55,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949575390] [2022-07-22 01:31:55,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:55,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:55,694 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:55,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:55,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:55,707 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-07-22 01:31:55,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:55,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412723819] [2022-07-22 01:31:55,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:55,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:55,727 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:55,737 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:55,814 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:55,815 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:55,815 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:55,815 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:55,815 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:31:55,815 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:55,815 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:55,815 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:55,816 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration1_Loop [2022-07-22 01:31:55,816 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:55,816 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:55,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:55,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:55,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:55,904 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:55,905 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:31:55,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:55,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:55,909 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) [2022-07-22 01:31:55,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:55,951 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:55,963 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 [2022-07-22 01:31:55,981 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:55,982 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: [] [2022-07-22 01:31:55,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-22 01:31:55,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:55,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:56,001 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) [2022-07-22 01:31:56,010 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:56,010 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:56,030 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 [2022-07-22 01:31:56,031 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:56,031 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: [] [2022-07-22 01:31:56,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:56,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:56,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:56,055 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) [2022-07-22 01:31:56,058 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:56,058 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:56,066 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 [2022-07-22 01:31:56,102 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 [2022-07-22 01:31:56,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:56,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:56,111 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) [2022-07-22 01:31:56,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:31:56,116 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:56,151 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 [2022-07-22 01:31:56,176 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:31:56,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:56,184 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:56,184 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:56,185 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:56,185 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:56,185 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:31:56,185 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:56,185 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:56,185 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:56,185 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration1_Loop [2022-07-22 01:31:56,185 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:56,185 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:56,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:56,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:56,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:56,250 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:56,254 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:31:56,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:56,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:56,260 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) [2022-07-22 01:31:56,261 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 [2022-07-22 01:31:56,263 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 [2022-07-22 01:31:56,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:56,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:56,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:56,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:56,278 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:31:56,280 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:31:56,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:31:56,330 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 [2022-07-22 01:31:56,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:56,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:56,332 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) [2022-07-22 01:31:56,340 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 [2022-07-22 01:31:56,355 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 [2022-07-22 01:31:56,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:56,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:56,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:56,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:56,366 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:31:56,366 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:31:56,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:31:56,410 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 [2022-07-22 01:31:56,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:56,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:56,411 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) [2022-07-22 01:31:56,413 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 [2022-07-22 01:31:56,413 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 [2022-07-22 01:31:56,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:56,420 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:31:56,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:56,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:56,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:56,423 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:31:56,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:31:56,435 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:31:56,445 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:31:56,446 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:31:56,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:56,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:56,448 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) [2022-07-22 01:31:56,451 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 [2022-07-22 01:31:56,451 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:31:56,452 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:31:56,452 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:31:56,452 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = -2*ULTIMATE.start_main_~z~0#1 + 4294967293 Supporting invariants [] [2022-07-22 01:31:56,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:56,477 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:31:56,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:56,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:31:56,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:56,528 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:31:56,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:56,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:56,591 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 [2022-07-22 01:31:56,592 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2022-07-22 01:31:56,644 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 29 states and 36 transitions. Complement of second has 7 states. [2022-07-22 01:31:56,646 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 [2022-07-22 01:31:56,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2022-07-22 01:31:56,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2022-07-22 01:31:56,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 2 letters. [2022-07-22 01:31:56,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:56,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-22 01:31:56,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:56,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-22 01:31:56,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:56,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2022-07-22 01:31:56,673 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:31:56,677 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 9 states and 12 transitions. [2022-07-22 01:31:56,679 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-22 01:31:56,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-07-22 01:31:56,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2022-07-22 01:31:56,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:31:56,680 INFO L369 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-07-22 01:31:56,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2022-07-22 01:31:56,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2022-07-22 01:31:56,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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) [2022-07-22 01:31:56,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-07-22 01:31:56,702 INFO L392 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-22 01:31:56,702 INFO L374 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-22 01:31:56,702 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 01:31:56,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-07-22 01:31:56,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:31:56,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:31:56,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:31:56,704 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 01:31:56,704 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:31:56,704 INFO L752 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 81#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_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~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;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 82#L12-2 assume !!(main_~x~0#1 < main_~y~0#1 && main_~z~0#1 < 2147483647); 77#L12 [2022-07-22 01:31:56,705 INFO L754 eck$LassoCheckResult]: Loop: 77#L12 assume main_~x~0#1 < main_~z~0#1;main_~x~0#1 := 1 + main_~x~0#1; 76#L12-2 assume !!(main_~x~0#1 < main_~y~0#1 && main_~z~0#1 < 2147483647); 77#L12 [2022-07-22 01:31:56,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:56,706 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-22 01:31:56,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:56,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918361654] [2022-07-22 01:31:56,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:56,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:56,717 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 [2022-07-22 01:31:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:56,721 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:56,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:56,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:56,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2022-07-22 01:31:56,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:56,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221687058] [2022-07-22 01:31:56,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:56,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:56,748 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:56,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:56,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:56,757 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2022-07-22 01:31:56,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:31:56,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057734185] [2022-07-22 01:31:56,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:31:56,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:31:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:56,771 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:31:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:31:56,780 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:31:56,807 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:56,807 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:56,807 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:56,807 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:56,808 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:31:56,808 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:56,808 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:56,808 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:56,808 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration2_Loop [2022-07-22 01:31:56,808 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:56,808 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:56,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:56,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:56,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:56,864 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:56,864 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:31:56,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:56,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:56,873 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) [2022-07-22 01:31:56,874 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 [2022-07-22 01:31:56,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:56,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:56,893 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:56,893 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: [] [2022-07-22 01:31:56,909 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 [2022-07-22 01:31:56,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:56,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:56,911 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) [2022-07-22 01:31:56,911 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 [2022-07-22 01:31:56,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:56,948 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:56,963 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:31:56,964 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: [] [2022-07-22 01:31:56,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:56,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:56,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:56,982 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) [2022-07-22 01:31:56,984 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 [2022-07-22 01:31:56,984 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:31:56,985 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:57,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:57,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:57,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:57,025 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) [2022-07-22 01:31:57,027 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 [2022-07-22 01:31:57,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:31:57,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:31:57,058 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:31:57,062 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 [2022-07-22 01:31:57,062 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:31:57,062 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:31:57,062 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:31:57,062 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:31:57,062 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:31:57,062 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:57,062 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:31:57,063 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:31:57,063 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration2_Loop [2022-07-22 01:31:57,063 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:31:57,063 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:31:57,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:57,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:57,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:31:57,117 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:31:57,117 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:31:57,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:57,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:57,119 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2022-07-22 01:31:57,131 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 [2022-07-22 01:31:57,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:57,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:57,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:57,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:57,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:31:57,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:31:57,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-22 01:31:57,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:31:57,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-07-22 01:31:57,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:57,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:57,176 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2022-07-22 01:31:57,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-22 01:31:57,203 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 [2022-07-22 01:31:57,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:31:57,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:31:57,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:31:57,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:31:57,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:31:57,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:31:57,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:31:57,223 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:31:57,230 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-22 01:31:57,230 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:31:57,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:31:57,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:31:57,232 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2022-07-22 01:31:57,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-22 01:31:57,238 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:31:57,238 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:31:57,238 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:31:57,238 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-07-22 01:31:57,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-07-22 01:31:57,256 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:31:57,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:31:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:57,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:31:57,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:31:57,282 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:31:57,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:31:57,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:31:57,309 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 [2022-07-22 01:31:57,309 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 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) [2022-07-22 01:31:57,354 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. 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 17 states and 24 transitions. Complement of second has 6 states. [2022-07-22 01:31:57,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-22 01:31:57,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-22 01:31:57,364 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) [2022-07-22 01:31:57,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-07-22 01:31:57,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2022-07-22 01:31:57,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:57,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-22 01:31:57,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:57,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-22 01:31:57,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:31:57,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2022-07-22 01:31:57,370 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:31:57,370 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2022-07-22 01:31:57,370 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 01:31:57,371 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 01:31:57,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 01:31:57,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:31:57,371 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:31:57,371 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:31:57,371 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:31:57,372 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 01:31:57,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 01:31:57,372 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:31:57,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 01:31:57,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 01:31:57 BoogieIcfgContainer [2022-07-22 01:31:57,384 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 01:31:57,385 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 01:31:57,385 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 01:31:57,385 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 01:31:57,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:31:55" (3/4) ... [2022-07-22 01:31:57,395 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 01:31:57,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 01:31:57,396 INFO L158 Benchmark]: Toolchain (without parser) took 2370.73ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 41.9MB in the beginning and 48.1MB in the end (delta: -6.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-07-22 01:31:57,396 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 46.1MB. Free memory was 28.6MB in the beginning and 28.6MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:31:57,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 144.50ms. Allocated memory is still 56.6MB. Free memory was 41.7MB in the beginning and 41.6MB in the end (delta: 176.0kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 01:31:57,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.84ms. Allocated memory is still 56.6MB. Free memory was 41.4MB in the beginning and 40.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:31:57,400 INFO L158 Benchmark]: Boogie Preprocessor took 16.21ms. Allocated memory is still 56.6MB. Free memory was 40.1MB in the beginning and 39.3MB in the end (delta: 873.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:31:57,403 INFO L158 Benchmark]: RCFGBuilder took 214.77ms. Allocated memory is still 56.6MB. Free memory was 39.3MB in the beginning and 31.5MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 01:31:57,403 INFO L158 Benchmark]: BuchiAutomizer took 1945.69ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 31.4MB in the beginning and 48.5MB in the end (delta: -17.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:31:57,403 INFO L158 Benchmark]: Witness Printer took 10.36ms. Allocated memory is still 69.2MB. Free memory was 48.5MB in the beginning and 48.1MB in the end (delta: 436.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:31:57,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 46.1MB. Free memory was 28.6MB in the beginning and 28.6MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 144.50ms. Allocated memory is still 56.6MB. Free memory was 41.7MB in the beginning and 41.6MB in the end (delta: 176.0kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.84ms. Allocated memory is still 56.6MB. Free memory was 41.4MB in the beginning and 40.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.21ms. Allocated memory is still 56.6MB. Free memory was 40.1MB in the beginning and 39.3MB in the end (delta: 873.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 214.77ms. Allocated memory is still 56.6MB. Free memory was 39.3MB in the beginning and 31.5MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1945.69ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 31.4MB in the beginning and 48.5MB in the end (delta: -17.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 10.36ms. Allocated memory is still 69.2MB. Free memory was 48.5MB in the beginning and 48.1MB in the end (delta: 436.5kB). 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 -2 * z + 4294967293 and consists of 5 locations. One deterministic module has affine ranking function y + -1 * x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 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, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 11 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax172 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq136 hnf95 smp100 dnf100 smp100 tf109 neg97 sie121 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 01:31:57,446 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