./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.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-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.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 a723a67708085ac2edc65dca820ea0ff5f017c1387423fea83ca87f76f9f53c3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:25:31,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:25:31,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:25:31,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:25:31,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:25:31,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:25:31,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:25:31,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:25:31,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:25:31,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:25:31,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:25:31,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:25:31,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:25:31,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:25:31,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:25:31,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:25:31,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:25:31,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:25:31,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:25:31,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:25:31,575 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:25:31,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:25:31,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:25:31,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:25:31,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:25:31,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:25:31,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:25:31,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:25:31,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:25:31,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:25:31,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:25:31,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:25:31,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:25:31,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:25:31,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:25:31,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:25:31,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:25:31,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:25:31,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:25:31,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:25:31,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:25:31,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:25:31,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-22 01:25:31,631 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:25:31,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:25:31,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:25:31,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:25:31,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:25:31,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:25:31,634 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:25:31,634 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:25:31,635 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:25:31,641 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:25:31,641 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:25:31,641 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:25:31,641 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:25:31,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:25:31,642 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:25:31,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:25:31,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:25:31,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:25:31,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:25:31,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:25:31,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:25:31,643 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:25:31,643 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:25:31,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:25:31,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:25:31,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:25:31,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:25:31,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:25:31,646 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:25:31,647 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a723a67708085ac2edc65dca820ea0ff5f017c1387423fea83ca87f76f9f53c3 [2022-07-22 01:25:31,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:25:31,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:25:31,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:25:31,984 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:25:31,985 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:25:31,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2022-07-22 01:25:32,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48f4a14d5/d1d51e9da74e423483693500201596da/FLAGe42af9627 [2022-07-22 01:25:32,425 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:25:32,426 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2022-07-22 01:25:32,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48f4a14d5/d1d51e9da74e423483693500201596da/FLAGe42af9627 [2022-07-22 01:25:32,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48f4a14d5/d1d51e9da74e423483693500201596da [2022-07-22 01:25:32,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:25:32,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:25:32,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:25:32,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:25:32,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:25:32,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:25:32" (1/1) ... [2022-07-22 01:25:32,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a72e1cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:32, skipping insertion in model container [2022-07-22 01:25:32,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:25:32" (1/1) ... [2022-07-22 01:25:32,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:25:32,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:25:32,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:25:32,574 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:25:32,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:25:32,593 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:25:32,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:32 WrapperNode [2022-07-22 01:25:32,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:25:32,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:25:32,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:25:32,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:25:32,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:32" (1/1) ... [2022-07-22 01:25:32,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:32" (1/1) ... [2022-07-22 01:25:32,652 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-07-22 01:25:32,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:25:32,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:25:32,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:25:32,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:25:32,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:32" (1/1) ... [2022-07-22 01:25:32,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:32" (1/1) ... [2022-07-22 01:25:32,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:32" (1/1) ... [2022-07-22 01:25:32,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:32" (1/1) ... [2022-07-22 01:25:32,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:32" (1/1) ... [2022-07-22 01:25:32,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:32" (1/1) ... [2022-07-22 01:25:32,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:32" (1/1) ... [2022-07-22 01:25:32,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:25:32,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:25:32,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:25:32,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:25:32,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:32" (1/1) ... [2022-07-22 01:25:32,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:32,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:32,700 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 01:25:32,730 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 01:25:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:25:32,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:25:32,798 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:25:32,801 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:25:32,885 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:25:32,890 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:25:32,891 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 01:25:32,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:25:32 BoogieIcfgContainer [2022-07-22 01:25:32,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:25:32,893 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:25:32,893 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:25:32,895 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:25:32,896 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:25:32,896 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:25:32" (1/3) ... [2022-07-22 01:25:32,897 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a4cf27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:25:32, skipping insertion in model container [2022-07-22 01:25:32,897 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:25:32,897 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:32" (2/3) ... [2022-07-22 01:25:32,897 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a4cf27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:25:32, skipping insertion in model container [2022-07-22 01:25:32,897 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:25:32,897 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:25:32" (3/3) ... [2022-07-22 01:25:32,898 INFO L354 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2.c [2022-07-22 01:25:32,959 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:25:32,959 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:25:32,959 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:25:32,959 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:25:32,960 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:25:32,960 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:25:32,960 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:25:32,960 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:25:32,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:32,979 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:25:32,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:32,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:32,984 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:25:32,984 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:25:32,996 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:25:32,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:32,997 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:25:32,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:32,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:32,998 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:25:32,998 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:25:33,008 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_~i~0#1, main_~j~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~N~0#1;main_~N~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_~N~0#1; 4#L17-2true [2022-07-22 01:25:33,013 INFO L754 eck$LassoCheckResult]: Loop: 4#L17-2true assume !!(main_~i~0#1 > 0);main_~j~0#1 := main_~N~0#1; 2#L19-2true assume !(main_~j~0#1 > 0); 9#L19-3true main_~i~0#1 := main_~i~0#1 - 1; 4#L17-2true [2022-07-22 01:25:33,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:33,019 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-22 01:25:33,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:33,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488290551] [2022-07-22 01:25:33,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:33,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:33,100 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:33,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:33,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:33,133 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2022-07-22 01:25:33,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:33,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631768519] [2022-07-22 01:25:33,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:33,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:33,153 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:33,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:33,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:33,163 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2022-07-22 01:25:33,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:33,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515072746] [2022-07-22 01:25:33,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:33,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:33,293 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 01:25:33,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:25:33,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515072746] [2022-07-22 01:25:33,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515072746] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:25:33,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:25:33,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:25:33,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625298284] [2022-07-22 01:25:33,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:25:33,334 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:33,335 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:33,335 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:33,335 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:33,336 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:33,336 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:33,336 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:33,336 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:33,336 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2022-07-22 01:25:33,336 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:33,337 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:33,349 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 01:25:33,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:33,373 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 01:25:33,394 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 01:25:33,464 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:33,466 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:33,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:33,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:33,469 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 01:25:33,471 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 01:25:33,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:33,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:33,506 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:33,506 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 01:25:33,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:33,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:33,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:33,536 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 01:25:33,546 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:33,546 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:33,547 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 01:25:33,564 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:33,564 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 01:25:33,587 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 01:25:33,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:33,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:33,589 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 01:25:33,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:33,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:33,611 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 01:25:33,617 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:33,617 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=-4, ULTIMATE.start_main_~N~0#1=-4} Honda state: {ULTIMATE.start_main_~j~0#1=-4, ULTIMATE.start_main_~N~0#1=-4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:33,640 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 01:25:33,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:33,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:33,641 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 01:25:33,643 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 01:25:33,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:33,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:33,683 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 01:25:33,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:33,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:33,686 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 01:25:33,687 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 01:25:33,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:33,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:33,739 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:33,745 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 01:25:33,746 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:33,746 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:33,746 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:33,746 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:33,746 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:33,746 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:33,746 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:33,746 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:33,746 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2022-07-22 01:25:33,746 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:33,746 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:33,748 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 01:25:33,755 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 01:25:33,758 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 01:25:33,765 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 01:25:33,825 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:33,830 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:33,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:33,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:33,836 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 01:25:33,839 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 01:25:33,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:33,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:33,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:33,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:33,848 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 01:25:33,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:33,851 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:33,863 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:33,879 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 01:25:33,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:33,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:33,880 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 01:25:33,881 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 01:25:33,882 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 01:25:33,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:33,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:33,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:33,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:33,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:33,894 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:33,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:33,929 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 01:25:33,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:33,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:33,931 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 01:25:33,935 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 01:25:33,983 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 01:25:33,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:33,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:33,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:33,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:33,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:33,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:33,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:33,998 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:34,000 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-22 01:25:34,000 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:25:34,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:34,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:34,003 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 01:25:34,004 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 01:25:34,005 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:34,005 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:25:34,005 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:34,005 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-22 01:25:34,021 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 01:25:34,023 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:25:34,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:34,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:34,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:34,064 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:34,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:34,104 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 01:25:34,126 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 01:25:34,127 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:34,154 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 36 transitions. Complement of second has 7 states. [2022-07-22 01:25:34,156 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 01:25:34,160 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 01:25:34,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2022-07-22 01:25:34,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2022-07-22 01:25:34,162 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:34,162 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2022-07-22 01:25:34,162 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:34,162 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2022-07-22 01:25:34,162 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:34,163 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2022-07-22 01:25:34,165 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-22 01:25:34,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2022-07-22 01:25:34,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-07-22 01:25:34,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-22 01:25:34,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-07-22 01:25:34,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:34,169 INFO L369 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-22 01:25:34,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-07-22 01:25:34,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2022-07-22 01:25:34,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:34,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2022-07-22 01:25:34,187 INFO L392 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-07-22 01:25:34,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:25:34,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:25:34,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:25:34,190 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 01:25:34,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:25:34,222 INFO L93 Difference]: Finished difference Result 12 states and 16 transitions. [2022-07-22 01:25:34,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:25:34,223 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 16 transitions. [2022-07-22 01:25:34,224 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-07-22 01:25:34,224 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 16 transitions. [2022-07-22 01:25:34,224 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-07-22 01:25:34,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-07-22 01:25:34,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2022-07-22 01:25:34,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:34,225 INFO L369 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-07-22 01:25:34,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2022-07-22 01:25:34,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2022-07-22 01:25:34,226 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 01:25:34,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-07-22 01:25:34,226 INFO L392 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-22 01:25:34,226 INFO L374 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-22 01:25:34,226 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 01:25:34,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-07-22 01:25:34,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-22 01:25:34,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:34,227 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:34,227 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 01:25:34,228 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 01:25:34,228 INFO L752 eck$LassoCheckResult]: Stem: 103#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 104#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~j~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~N~0#1;main_~N~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_~N~0#1; 101#L17-2 assume !!(main_~i~0#1 > 0);main_~j~0#1 := main_~N~0#1; 98#L19-2 [2022-07-22 01:25:34,228 INFO L754 eck$LassoCheckResult]: Loop: 98#L19-2 assume !!(main_~j~0#1 > 0);main_~j~0#1 := main_~j~0#1 - 1; 98#L19-2 [2022-07-22 01:25:34,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:34,228 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-22 01:25:34,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:34,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292099413] [2022-07-22 01:25:34,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:34,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:34,232 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:34,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:34,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:34,235 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2022-07-22 01:25:34,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:34,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940701470] [2022-07-22 01:25:34,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:34,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:34,253 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:34,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:34,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:34,263 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2022-07-22 01:25:34,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:34,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999941407] [2022-07-22 01:25:34,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:34,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:34,267 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:34,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:34,275 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 01:25:34,313 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:34,313 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:34,313 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:34,314 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:34,314 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:34,314 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:34,314 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:34,314 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:34,314 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2022-07-22 01:25:34,314 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:34,314 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:34,315 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 01:25:34,317 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 01:25:34,324 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 01:25:34,371 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:34,371 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:34,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:34,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:34,373 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 01:25:34,375 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 01:25:34,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:34,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:34,400 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:34,400 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 01:25:34,423 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 01:25:34,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:34,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:34,427 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 01:25:34,427 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 01:25:34,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:34,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:34,450 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:34,450 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 01:25:34,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-07-22 01:25:34,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:34,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:34,467 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 01:25:34,472 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 01:25:34,472 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:34,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:34,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-07-22 01:25:34,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:34,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:34,496 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 01:25:34,497 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 01:25:34,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:34,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:34,526 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:34,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:34,529 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:34,529 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:34,529 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:34,529 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:34,529 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:34,529 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:34,529 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:34,529 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:34,529 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2022-07-22 01:25:34,530 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:34,530 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:34,530 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 01:25:34,538 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 01:25:34,542 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 01:25:34,591 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:34,591 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:34,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:34,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:34,596 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 01:25:34,597 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 01:25:34,599 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 01:25:34,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:34,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:34,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:34,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:34,610 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:34,610 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:34,624 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:34,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:34,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:34,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:34,647 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 01:25:34,647 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 01:25:34,649 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 01:25:34,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:34,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:34,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:34,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:34,658 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:34,658 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:34,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:34,683 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 01:25:34,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:34,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:34,685 INFO L229 MonitoredProcess]: Starting monitored process 17 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 01:25:34,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-22 01:25:34,687 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 01:25:34,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:34,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:34,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:34,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:34,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:34,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:34,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:34,723 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:34,726 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-22 01:25:34,726 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:25:34,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:34,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:34,727 INFO L229 MonitoredProcess]: Starting monitored process 18 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 01:25:34,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-22 01:25:34,730 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:34,730 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:25:34,730 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:34,730 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2022-07-22 01:25:34,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:34,754 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:25:34,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:34,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:34,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:34,796 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:34,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:34,796 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 01:25:34,797 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-22 01:25:34,797 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:34,804 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 20 transitions. Complement of second has 5 states. [2022-07-22 01:25:34,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:34,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:34,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-07-22 01:25:34,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2022-07-22 01:25:34,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:34,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2022-07-22 01:25:34,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:34,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2022-07-22 01:25:34,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:34,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2022-07-22 01:25:34,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-22 01:25:34,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2022-07-22 01:25:34,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-07-22 01:25:34,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2022-07-22 01:25:34,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2022-07-22 01:25:34,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:34,808 INFO L369 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2022-07-22 01:25:34,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2022-07-22 01:25:34,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 8. [2022-07-22 01:25:34,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) 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 01:25:34,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2022-07-22 01:25:34,809 INFO L392 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-07-22 01:25:34,809 INFO L374 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2022-07-22 01:25:34,809 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 01:25:34,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2022-07-22 01:25:34,810 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-22 01:25:34,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:34,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:34,810 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-07-22 01:25:34,810 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 01:25:34,811 INFO L752 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 159#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~j~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~N~0#1;main_~N~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_~N~0#1; 156#L17-2 assume !!(main_~i~0#1 > 0);main_~j~0#1 := main_~N~0#1; 154#L19-2 assume !!(main_~j~0#1 > 0);main_~j~0#1 := main_~j~0#1 - 1; 155#L19-2 assume !(main_~j~0#1 > 0); 160#L19-3 main_~i~0#1 := main_~i~0#1 - 1; 157#L17-2 assume !!(main_~i~0#1 > 0);main_~j~0#1 := main_~N~0#1; 153#L19-2 [2022-07-22 01:25:34,811 INFO L754 eck$LassoCheckResult]: Loop: 153#L19-2 assume !!(main_~j~0#1 > 0);main_~j~0#1 := main_~j~0#1 - 1; 153#L19-2 [2022-07-22 01:25:34,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:34,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1810841241, now seen corresponding path program 1 times [2022-07-22 01:25:34,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:34,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841942923] [2022-07-22 01:25:34,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:34,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:34,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:34,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:25:34,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841942923] [2022-07-22 01:25:34,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841942923] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:25:34,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465948923] [2022-07-22 01:25:34,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:34,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:25:34,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:34,853 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:25:34,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-22 01:25:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:34,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 01:25:34,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:34,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:25:35,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:35,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:35,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465948923] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:25:35,028 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:25:35,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-22 01:25:35,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658278569] [2022-07-22 01:25:35,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:25:35,028 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:25:35,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:35,029 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2022-07-22 01:25:35,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:35,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053213451] [2022-07-22 01:25:35,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:35,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:35,033 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:35,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:35,044 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:35,045 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:35,045 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:35,045 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:35,045 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:35,045 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:35,045 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:35,045 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:35,046 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2022-07-22 01:25:35,046 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:35,046 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:35,047 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 01:25:35,051 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 01:25:35,053 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 01:25:35,078 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:35,078 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:35,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:35,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:35,080 INFO L229 MonitoredProcess]: Starting monitored process 20 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 01:25:35,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-22 01:25:35,092 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:35,092 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:35,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:35,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:35,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:35,116 INFO L229 MonitoredProcess]: Starting monitored process 21 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 01:25:35,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-22 01:25:35,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:35,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:35,148 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:35,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-07-22 01:25:35,153 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:35,153 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:35,153 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:35,154 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:35,154 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:35,154 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:35,154 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:35,154 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:35,154 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2022-07-22 01:25:35,154 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:35,154 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:35,155 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 01:25:35,166 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 01:25:35,168 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 01:25:35,196 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:35,196 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:35,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:35,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:35,198 INFO L229 MonitoredProcess]: Starting monitored process 22 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 01:25:35,208 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 01:25:35,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:35,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:35,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:35,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:35,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:35,217 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:35,217 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:35,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-22 01:25:35,231 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:35,234 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:25:35,234 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:25:35,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:35,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:35,239 INFO L229 MonitoredProcess]: Starting monitored process 23 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 01:25:35,244 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:35,245 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:25:35,245 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:35,245 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2022-07-22 01:25:35,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-22 01:25:35,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:35,268 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:25:35,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:35,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:35,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:35,305 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:35,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:35,306 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 01:25:35,308 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-22 01:25:35,308 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-07-22 01:25:35,322 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) Result 13 states and 17 transitions. Complement of second has 5 states. [2022-07-22 01:25:35,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:35,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-07-22 01:25:35,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-07-22 01:25:35,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2022-07-22 01:25:35,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:35,324 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:25:35,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:35,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:35,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:35,348 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:35,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:35,348 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 01:25:35,349 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-22 01:25:35,349 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-07-22 01:25:35,354 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) Result 13 states and 17 transitions. Complement of second has 5 states. [2022-07-22 01:25:35,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:35,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-07-22 01:25:35,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-07-22 01:25:35,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2022-07-22 01:25:35,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:35,355 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:25:35,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:35,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:35,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:35,377 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:35,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:35,377 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 01:25:35,378 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-22 01:25:35,378 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-07-22 01:25:35,384 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) Result 11 states and 13 transitions. Complement of second has 4 states. [2022-07-22 01:25:35,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:35,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-07-22 01:25:35,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-07-22 01:25:35,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 1 letters. [2022-07-22 01:25:35,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:35,386 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 1 letters. [2022-07-22 01:25:35,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:35,386 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2022-07-22 01:25:35,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:35,386 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2022-07-22 01:25:35,387 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:25:35,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2022-07-22 01:25:35,387 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 01:25:35,387 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 01:25:35,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 01:25:35,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:25:35,387 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:25:35,387 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:25:35,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:25:35,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 01:25:35,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-07-22 01:25:35,388 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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 01:25:35,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:25:35,388 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-07-22 01:25:35,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 01:25:35,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-07-22 01:25:35,389 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:25:35,389 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 01:25:35,389 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 01:25:35,389 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 01:25:35,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 01:25:35,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:25:35,390 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:25:35,390 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:25:35,390 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:25:35,390 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 01:25:35,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 01:25:35,390 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:25:35,390 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 01:25:35,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 01:25:35 BoogieIcfgContainer [2022-07-22 01:25:35,396 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 01:25:35,396 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 01:25:35,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 01:25:35,397 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 01:25:35,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:25:32" (3/4) ... [2022-07-22 01:25:35,399 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 01:25:35,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 01:25:35,400 INFO L158 Benchmark]: Toolchain (without parser) took 2952.09ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 35.7MB in the beginning and 25.8MB in the end (delta: 9.9MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-07-22 01:25:35,400 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.6MB in the end (delta: 51.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:25:35,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 143.42ms. Allocated memory is still 56.6MB. Free memory was 35.5MB in the beginning and 26.8MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 01:25:35,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.79ms. Allocated memory is still 56.6MB. Free memory was 26.7MB in the beginning and 40.8MB in the end (delta: -14.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 01:25:35,401 INFO L158 Benchmark]: Boogie Preprocessor took 14.18ms. Allocated memory is still 56.6MB. Free memory was 40.8MB in the beginning and 40.1MB in the end (delta: 774.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:25:35,402 INFO L158 Benchmark]: RCFGBuilder took 222.75ms. Allocated memory is still 56.6MB. Free memory was 39.9MB in the beginning and 32.0MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 01:25:35,402 INFO L158 Benchmark]: BuchiAutomizer took 2503.10ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 31.8MB in the beginning and 26.2MB in the end (delta: 5.6MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2022-07-22 01:25:35,402 INFO L158 Benchmark]: Witness Printer took 2.82ms. Allocated memory is still 69.2MB. Free memory was 26.2MB in the beginning and 25.8MB in the end (delta: 418.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:25:35,404 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.6MB in the end (delta: 51.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 143.42ms. Allocated memory is still 56.6MB. Free memory was 35.5MB in the beginning and 26.8MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.79ms. Allocated memory is still 56.6MB. Free memory was 26.7MB in the beginning and 40.8MB in the end (delta: -14.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.18ms. Allocated memory is still 56.6MB. Free memory was 40.8MB in the beginning and 40.1MB in the end (delta: 774.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 222.75ms. Allocated memory is still 56.6MB. Free memory was 39.9MB in the beginning and 32.0MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 2503.10ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 31.8MB in the beginning and 26.2MB in the end (delta: 5.6MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * Witness Printer took 2.82ms. Allocated memory is still 69.2MB. Free memory was 26.2MB in the beginning and 25.8MB in the end (delta: 418.3kB). 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function j and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 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, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 33 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax203 hnf100 lsp41 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 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 01:25:35,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:35,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-07-22 01:25:35,848 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 Result: TRUE