./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-nla/cohencu1-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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-nla/cohencu1-both-nt.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca80e9b36e5fc58b8f30c1bb1c05df2fc99c88b9aad13b3e482ed10946a6c2f8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 19:49:11,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 19:49:11,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 19:49:11,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 19:49:11,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 19:49:11,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 19:49:11,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 19:49:11,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 19:49:11,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 19:49:11,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 19:49:11,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 19:49:11,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 19:49:11,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 19:49:11,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 19:49:11,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 19:49:11,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 19:49:11,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 19:49:11,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 19:49:11,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 19:49:11,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 19:49:11,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 19:49:11,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 19:49:11,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 19:49:11,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 19:49:11,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 19:49:11,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 19:49:11,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 19:49:11,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 19:49:11,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 19:49:11,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 19:49:11,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 19:49:11,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 19:49:11,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 19:49:11,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 19:49:11,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 19:49:11,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 19:49:11,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 19:49:11,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 19:49:11,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 19:49:11,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 19:49:11,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 19:49:11,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 19:49:11,625 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 19:49:11,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 19:49:11,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 19:49:11,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 19:49:11,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 19:49:11,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 19:49:11,628 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 19:49:11,628 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 19:49:11,628 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 19:49:11,628 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 19:49:11,629 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 19:49:11,629 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 19:49:11,630 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 19:49:11,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 19:49:11,630 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 19:49:11,630 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 19:49:11,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 19:49:11,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 19:49:11,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 19:49:11,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 19:49:11,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 19:49:11,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 19:49:11,632 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 19:49:11,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 19:49:11,632 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 19:49:11,632 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 19:49:11,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 19:49:11,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 19:49:11,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 19:49:11,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 19:49:11,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 19:49:11,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 19:49:11,634 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 19:49:11,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca80e9b36e5fc58b8f30c1bb1c05df2fc99c88b9aad13b3e482ed10946a6c2f8 [2021-12-22 19:49:11,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 19:49:11,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 19:49:11,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 19:49:11,901 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 19:49:11,902 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 19:49:11,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-nla/cohencu1-both-nt.c [2021-12-22 19:49:11,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/983b22bf9/05fc1b7200c54ac2b6c1c2e182341373/FLAGa1be7f36e [2021-12-22 19:49:12,373 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 19:49:12,374 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/cohencu1-both-nt.c [2021-12-22 19:49:12,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/983b22bf9/05fc1b7200c54ac2b6c1c2e182341373/FLAGa1be7f36e [2021-12-22 19:49:12,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/983b22bf9/05fc1b7200c54ac2b6c1c2e182341373 [2021-12-22 19:49:12,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 19:49:12,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 19:49:12,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 19:49:12,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 19:49:12,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 19:49:12,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:49:12" (1/1) ... [2021-12-22 19:49:12,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae7403a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:12, skipping insertion in model container [2021-12-22 19:49:12,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:49:12" (1/1) ... [2021-12-22 19:49:12,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 19:49:12,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 19:49:12,522 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 19:49:12,525 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 19:49:12,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 19:49:12,552 INFO L208 MainTranslator]: Completed translation [2021-12-22 19:49:12,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:12 WrapperNode [2021-12-22 19:49:12,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 19:49:12,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 19:49:12,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 19:49:12,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 19:49:12,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:12" (1/1) ... [2021-12-22 19:49:12,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:12" (1/1) ... [2021-12-22 19:49:12,584 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2021-12-22 19:49:12,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 19:49:12,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 19:49:12,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 19:49:12,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 19:49:12,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:12" (1/1) ... [2021-12-22 19:49:12,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:12" (1/1) ... [2021-12-22 19:49:12,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:12" (1/1) ... [2021-12-22 19:49:12,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:12" (1/1) ... [2021-12-22 19:49:12,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:12" (1/1) ... [2021-12-22 19:49:12,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:12" (1/1) ... [2021-12-22 19:49:12,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:12" (1/1) ... [2021-12-22 19:49:12,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 19:49:12,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 19:49:12,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 19:49:12,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 19:49:12,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:12" (1/1) ... [2021-12-22 19:49:12,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:12,631 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) [2021-12-22 19:49:12,632 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 [2021-12-22 19:49:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 19:49:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 19:49:12,704 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 19:49:12,705 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 19:49:12,784 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 19:49:12,790 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 19:49:12,791 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 19:49:12,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:49:12 BoogieIcfgContainer [2021-12-22 19:49:12,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 19:49:12,793 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 19:49:12,794 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 19:49:12,797 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 19:49:12,798 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:49:12,798 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 07:49:12" (1/3) ... [2021-12-22 19:49:12,799 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e85b3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 07:49:12, skipping insertion in model container [2021-12-22 19:49:12,799 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:49:12,799 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:12" (2/3) ... [2021-12-22 19:49:12,800 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e85b3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 07:49:12, skipping insertion in model container [2021-12-22 19:49:12,800 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:49:12,800 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:49:12" (3/3) ... [2021-12-22 19:49:12,802 INFO L388 chiAutomizerObserver]: Analyzing ICFG cohencu1-both-nt.c [2021-12-22 19:49:12,846 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 19:49:12,846 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 19:49:12,847 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 19:49:12,847 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 19:49:12,847 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 19:49:12,847 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 19:49:12,847 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 19:49:12,847 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 19:49:12,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2021-12-22 19:49:12,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-22 19:49:12,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:49:12,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:49:12,884 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-22 19:49:12,884 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-22 19:49:12,884 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 19:49:12,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2021-12-22 19:49:12,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-22 19:49:12,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:49:12,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:49:12,886 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-22 19:49:12,886 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-22 19:49:12,892 INFO L791 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_~a~0#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~a~0#1;havoc main_~n~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~a~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~n~0#1 := 0;main_~x~0#1 := 0;main_~y~0#1 := 1;main_~z~0#1 := 6; 6#L33-2true [2021-12-22 19:49:12,892 INFO L793 eck$LassoCheckResult]: Loop: 6#L33-2true assume !!(main_~z~0#1 <= 6 + 6 * main_~n~0#1);main_~n~0#1 := 1 + main_~n~0#1;main_~x~0#1 := main_~x~0#1 + main_~y~0#1;main_~y~0#1 := main_~y~0#1 + main_~z~0#1;main_~z~0#1 := 6 + main_~z~0#1; 6#L33-2true [2021-12-22 19:49:12,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:49:12,897 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-22 19:49:12,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:49:12,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684341453] [2021-12-22 19:49:12,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:49:12,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:49:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:12,975 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:49:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:12,996 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:49:13,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:49:13,005 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-12-22 19:49:13,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:49:13,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634612547] [2021-12-22 19:49:13,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:49:13,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:49:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:13,017 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:49:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:13,035 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:49:13,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:49:13,037 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-12-22 19:49:13,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:49:13,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080231404] [2021-12-22 19:49:13,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:49:13,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:49:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:13,057 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:49:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:13,079 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:49:13,176 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:49:13,177 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:49:13,177 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:49:13,177 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:49:13,177 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-22 19:49:13,178 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:13,178 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:49:13,178 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:49:13,178 INFO L133 ssoRankerPreferences]: Filename of dumped script: cohencu1-both-nt.c_Iteration1_Loop [2021-12-22 19:49:13,178 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:49:13,179 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:49:13,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:13,296 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:49:13,297 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-22 19:49:13,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:13,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:13,304 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) [2021-12-22 19:49:13,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 19:49:13,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:13,323 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 [2021-12-22 19:49:13,358 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 [2021-12-22 19:49:13,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:13,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:13,362 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) [2021-12-22 19:49:13,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-22 19:49:13,381 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:13,427 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 [2021-12-22 19:49:13,557 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 19:49:13,557 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=6, ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=6, ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-5, ULTIMATE.start_main_~n~0#1=1, ULTIMATE.start_main_~z~0#1=6, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0, ULTIMATE.start_main_~y~0#1=6}, {ULTIMATE.start_main_~x~0#1=6, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [1, 1, 1] Nus: [1, 1] [2021-12-22 19:49:13,583 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 [2021-12-22 19:49:13,630 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:49:13,630 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:49:13,630 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:49:13,631 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:49:13,631 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-22 19:49:13,631 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:13,631 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:49:13,631 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:49:13,631 INFO L133 ssoRankerPreferences]: Filename of dumped script: cohencu1-both-nt.c_Iteration1_Lasso [2021-12-22 19:49:13,632 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:49:13,632 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:49:13,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:13,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:13,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:13,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:13,754 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:49:13,754 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-22 19:49:13,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:13,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:13,756 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) [2021-12-22 19:49:13,757 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 [2021-12-22 19:49:13,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 19:49:13,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:13,809 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 [2021-12-22 19:49:13,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:13,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:13,811 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) [2021-12-22 19:49:13,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-22 19:49:13,818 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:13,851 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 [2021-12-22 19:49:13,959 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 19:49:13,959 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0, ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=1, ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=6} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0#1=0, ULTIMATE.start_main_~x~0#1=-5, ULTIMATE.start_main_~n~0#1=1, ULTIMATE.start_main_~z~0#1=6}, {ULTIMATE.start_main_~y~0#1=6, ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0}, {ULTIMATE.start_main_~y~0#1=0, ULTIMATE.start_main_~x~0#1=6, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0}] Lambdas: [1, 1, 1] Nus: [1, 1] [2021-12-22 19:49:14,003 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 [2021-12-22 19:49:14,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:14,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:14,005 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) [2021-12-22 19:49:14,007 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 [2021-12-22 19:49:14,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 19:49:14,009 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:14,027 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 19:49:14,028 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 19:49:14,046 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 [2021-12-22 19:49:14,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:14,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:14,048 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) [2021-12-22 19:49:14,049 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 [2021-12-22 19:49:14,052 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 19:49:14,052 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:14,078 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 19:49:14,079 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 19:49:14,096 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 [2021-12-22 19:49:14,097 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:14,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:14,098 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) [2021-12-22 19:49:14,104 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 19:49:14,104 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:14,113 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 [2021-12-22 19:49:14,118 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 19:49:14,118 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 19:49:14,135 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 [2021-12-22 19:49:14,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 07:49:14 BoogieIcfgContainer [2021-12-22 19:49:14,151 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 19:49:14,152 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 19:49:14,152 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 19:49:14,152 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 19:49:14,152 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:49:12" (3/4) ... [2021-12-22 19:49:14,155 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-22 19:49:14,179 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 19:49:14,179 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 19:49:14,180 INFO L158 Benchmark]: Toolchain (without parser) took 1788.45ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 59.6MB in the end (delta: 5.1MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2021-12-22 19:49:14,181 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory was 60.9MB in the beginning and 60.9MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:49:14,181 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.26ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 76.0MB in the end (delta: -11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 19:49:14,182 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.20ms. Allocated memory is still 96.5MB. Free memory was 76.0MB in the beginning and 74.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:49:14,182 INFO L158 Benchmark]: Boogie Preprocessor took 15.61ms. Allocated memory is still 96.5MB. Free memory was 74.5MB in the beginning and 73.9MB in the end (delta: 592.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:49:14,183 INFO L158 Benchmark]: RCFGBuilder took 191.26ms. Allocated memory is still 96.5MB. Free memory was 73.6MB in the beginning and 65.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 19:49:14,183 INFO L158 Benchmark]: BuchiAutomizer took 1358.10ms. Allocated memory is still 96.5MB. Free memory was 64.9MB in the beginning and 61.0MB in the end (delta: 4.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-22 19:49:14,184 INFO L158 Benchmark]: Witness Printer took 27.60ms. Allocated memory is still 96.5MB. Free memory was 61.0MB in the beginning and 59.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:49:14,186 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory was 60.9MB in the beginning and 60.9MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.26ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 76.0MB in the end (delta: -11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.20ms. Allocated memory is still 96.5MB. Free memory was 76.0MB in the beginning and 74.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.61ms. Allocated memory is still 96.5MB. Free memory was 74.5MB in the beginning and 73.9MB in the end (delta: 592.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 191.26ms. Allocated memory is still 96.5MB. Free memory was 73.6MB in the beginning and 65.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1358.10ms. Allocated memory is still 96.5MB. Free memory was 64.9MB in the beginning and 61.0MB in the end (delta: 4.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 27.60ms. Allocated memory is still 96.5MB. Free memory was 61.0MB in the beginning and 59.6MB in the end (delta: 1.4MB). 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital35 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq190 hnf91 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 33]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {y=0, x=0, a=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71794b3a=0, n=0, z=0} State at position 1 is {y=1, x=0, a=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71794b3a=0, n=0, z=6} For i>1, the state at position i is {y=1 + sum_{k=0}^i 6 + 6*k, x=0 + sum_{k=0}^i -5 + 6 + 6*k + 6*binomial(k, 2), a=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71794b3a=0 + sum_{k=0}^i 0, n=0 + sum_{k=0}^i 1, z=6 + sum_{k=0}^i 6} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [1, 1, 1] Mus: [1, 1] - NonterminatingLassoResult [Line: 33]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L26] int a, n, x, y, z; [L27] a = __VERIFIER_nondet_int() [L28] n = 0 [L29] x = 0 [L30] y = 1 [L31] z = 6 Loop: [L33] COND TRUE z <= 6 * n + 6 [L41] n = n + 1 [L42] x = x + y [L43] y = y + z [L44] z = z + 6 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-22 19:49:14,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)