./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 ff03de63 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-dev-ff03de6 [2021-12-21 21:55:58,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 21:55:58,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 21:55:58,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 21:55:58,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 21:55:58,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 21:55:58,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 21:55:58,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 21:55:58,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 21:55:58,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 21:55:58,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 21:55:58,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 21:55:58,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 21:55:58,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 21:55:58,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 21:55:58,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 21:55:58,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 21:55:58,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 21:55:58,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 21:55:58,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 21:55:58,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 21:55:58,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 21:55:58,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 21:55:58,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 21:55:58,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 21:55:58,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 21:55:58,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 21:55:58,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 21:55:58,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 21:55:58,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 21:55:58,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 21:55:58,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 21:55:58,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 21:55:58,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 21:55:58,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 21:55:58,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 21:55:58,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 21:55:58,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 21:55:58,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 21:55:58,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 21:55:58,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 21:55:58,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-21 21:55:58,582 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 21:55:58,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 21:55:58,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 21:55:58,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 21:55:58,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 21:55:58,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 21:55:58,585 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 21:55:58,585 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 21:55:58,585 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 21:55:58,585 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 21:55:58,586 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 21:55:58,586 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 21:55:58,586 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 21:55:58,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 21:55:58,587 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 21:55:58,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 21:55:58,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 21:55:58,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 21:55:58,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 21:55:58,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 21:55:58,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 21:55:58,588 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 21:55:58,588 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 21:55:58,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 21:55:58,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 21:55:58,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 21:55:58,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 21:55:58,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 21:55:58,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 21:55:58,591 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 21:55:58,591 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a723a67708085ac2edc65dca820ea0ff5f017c1387423fea83ca87f76f9f53c3 [2021-12-21 21:55:58,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 21:55:58,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 21:55:58,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 21:55:58,843 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 21:55:58,844 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 21:55:58,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2021-12-21 21:55:58,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00efdd8b/ef5957bcc7564773846b4c82daf9258d/FLAGf6ac77dce [2021-12-21 21:55:59,328 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 21:55:59,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2021-12-21 21:55:59,336 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00efdd8b/ef5957bcc7564773846b4c82daf9258d/FLAGf6ac77dce [2021-12-21 21:55:59,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00efdd8b/ef5957bcc7564773846b4c82daf9258d [2021-12-21 21:55:59,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 21:55:59,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 21:55:59,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 21:55:59,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 21:55:59,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 21:55:59,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5625bbd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59, skipping insertion in model container [2021-12-21 21:55:59,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 21:55:59,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 21:55:59,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 21:55:59,571 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 21:55:59,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 21:55:59,593 INFO L208 MainTranslator]: Completed translation [2021-12-21 21:55:59,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59 WrapperNode [2021-12-21 21:55:59,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 21:55:59,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 21:55:59,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 21:55:59,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 21:55:59,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,618 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2021-12-21 21:55:59,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 21:55:59,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 21:55:59,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 21:55:59,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 21:55:59,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 21:55:59,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 21:55:59,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 21:55:59,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 21:55:59,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (1/1) ... [2021-12-21 21:55:59,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:55:59,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:55:59,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:55:59,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-21 21:55:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 21:55:59,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 21:55:59,755 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 21:55:59,758 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 21:55:59,837 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 21:55:59,843 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 21:55:59,843 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 21:55:59,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:55:59 BoogieIcfgContainer [2021-12-21 21:55:59,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 21:55:59,846 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 21:55:59,846 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 21:55:59,849 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 21:55:59,849 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:55:59,850 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 09:55:59" (1/3) ... [2021-12-21 21:55:59,851 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37bbc69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 09:55:59, skipping insertion in model container [2021-12-21 21:55:59,851 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:55:59,851 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:59" (2/3) ... [2021-12-21 21:55:59,851 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37bbc69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 09:55:59, skipping insertion in model container [2021-12-21 21:55:59,851 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:55:59,852 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:55:59" (3/3) ... [2021-12-21 21:55:59,853 INFO L388 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2.c [2021-12-21 21:55:59,896 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 21:55:59,896 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 21:55:59,897 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 21:55:59,897 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 21:55:59,897 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 21:55:59,897 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 21:55:59,897 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 21:55:59,897 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 21:55:59,910 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) [2021-12-21 21:55:59,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-21 21:55:59,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:55:59,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:55:59,929 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 21:55:59,929 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-21 21:55:59,929 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 21:55:59,930 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) [2021-12-21 21:55:59,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-21 21:55:59,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:55:59,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:55:59,932 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 21:55:59,932 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-21 21:55:59,938 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~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; 5#L17-2true [2021-12-21 21:55:59,938 INFO L793 eck$LassoCheckResult]: Loop: 5#L17-2true assume !!(main_~i~0#1 > 0);main_~j~0#1 := main_~N~0#1; 3#L19-2true assume !(main_~j~0#1 > 0); 10#L19-3true main_~i~0#1 := main_~i~0#1 - 1; 5#L17-2true [2021-12-21 21:55:59,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:55:59,944 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-21 21:55:59,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:55:59,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187041961] [2021-12-21 21:55:59,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:55:59,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:00,017 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:00,036 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:00,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:00,038 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2021-12-21 21:56:00,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:00,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716668659] [2021-12-21 21:56:00,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:00,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:00,055 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:00,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:00,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:00,068 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2021-12-21 21:56:00,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:00,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362282320] [2021-12-21 21:56:00,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:00,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:00,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:00,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:56:00,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362282320] [2021-12-21 21:56:00,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362282320] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 21:56:00,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 21:56:00,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 21:56:00,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068521943] [2021-12-21 21:56:00,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 21:56:00,278 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:00,278 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:00,278 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:00,279 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:00,279 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-21 21:56:00,279 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,279 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:00,279 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:00,279 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2021-12-21 21:56:00,279 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:00,280 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:00,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:00,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:00,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:00,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:00,396 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:00,399 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-21 21:56:00,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:00,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-21 21:56:00,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:00,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:00,419 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:56:00,420 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: [] [2021-12-21 21:56:00,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-21 21:56:00,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,437 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:00,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-21 21:56:00,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:00,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:00,456 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:56:00,456 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: [] [2021-12-21 21:56:00,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:00,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,473 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:00,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-21 21:56:00,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:00,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:00,502 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:56:00,502 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: [] [2021-12-21 21:56:00,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:00,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,530 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:00,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:00,538 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:00,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-21 21:56:00,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-21 21:56:00,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,570 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:00,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-21 21:56:00,576 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-21 21:56:00,576 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:00,604 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-21 21:56:00,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-21 21:56:00,607 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:00,607 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:00,607 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:00,608 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:00,608 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 21:56:00,608 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,608 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:00,608 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:00,608 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2021-12-21 21:56:00,608 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:00,608 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:00,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:00,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:00,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:00,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:00,673 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:00,677 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 21:56:00,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,679 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:00,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-21 21:56:00,688 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 [2021-12-21 21:56:00,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:00,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:00,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:00,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:00,700 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 21:56:00,700 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 21:56:00,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 21:56:00,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:00,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,753 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 21:56:00,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-21 21:56:00,756 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 [2021-12-21 21:56:00,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:00,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:00,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:00,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:00,767 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 21:56:00,767 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 21:56:00,789 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 21:56:00,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-21 21:56:00,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,806 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) [2021-12-21 21:56:00,807 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 [2021-12-21 21:56:00,808 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 [2021-12-21 21:56:00,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:00,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 21:56:00,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:00,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:00,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:00,816 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 21:56:00,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 21:56:00,825 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 21:56:00,827 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-12-21 21:56:00,827 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-21 21:56:00,828 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:00,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:00,829 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) [2021-12-21 21:56:00,830 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 [2021-12-21 21:56:00,830 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 21:56:00,831 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-21 21:56:00,831 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 21:56:00,831 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 [] [2021-12-21 21:56:00,850 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 [2021-12-21 21:56:00,853 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-21 21:56:00,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:00,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 21:56:00,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:00,909 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 21:56:00,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:00,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:00,960 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 [2021-12-21 21:56:00,962 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) [2021-12-21 21:56:00,987 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. [2021-12-21 21:56:00,988 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 [2021-12-21 21:56:00,991 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) [2021-12-21 21:56:00,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2021-12-21 21:56:00,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2021-12-21 21:56:00,994 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:00,994 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2021-12-21 21:56:00,994 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:00,994 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2021-12-21 21:56:00,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:00,995 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2021-12-21 21:56:00,997 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-21 21:56:01,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2021-12-21 21:56:01,000 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-12-21 21:56:01,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-12-21 21:56:01,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-12-21 21:56:01,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 21:56:01,001 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-12-21 21:56:01,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-12-21 21:56:01,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-12-21 21:56:01,018 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) [2021-12-21 21:56:01,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-12-21 21:56:01,020 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-12-21 21:56:01,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:56:01,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 21:56:01,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 21:56:01,023 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) [2021-12-21 21:56:01,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:56:01,050 INFO L93 Difference]: Finished difference Result 12 states and 16 transitions. [2021-12-21 21:56:01,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 21:56:01,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 16 transitions. [2021-12-21 21:56:01,051 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-12-21 21:56:01,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 16 transitions. [2021-12-21 21:56:01,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-21 21:56:01,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-21 21:56:01,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-12-21 21:56:01,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 21:56:01,053 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-21 21:56:01,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-12-21 21:56:01,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2021-12-21 21:56:01,054 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) [2021-12-21 21:56:01,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-12-21 21:56:01,054 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-12-21 21:56:01,054 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-12-21 21:56:01,054 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 21:56:01,054 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-12-21 21:56:01,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-21 21:56:01,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:56:01,055 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:56:01,055 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-21 21:56:01,055 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-21 21:56:01,056 INFO L791 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 [2021-12-21 21:56:01,056 INFO L793 eck$LassoCheckResult]: Loop: 98#L19-2 assume !!(main_~j~0#1 > 0);main_~j~0#1 := main_~j~0#1 - 1; 98#L19-2 [2021-12-21 21:56:01,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:01,056 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-12-21 21:56:01,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:01,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930197329] [2021-12-21 21:56:01,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:01,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:01,061 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:01,063 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:01,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:01,064 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2021-12-21 21:56:01,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:01,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216990571] [2021-12-21 21:56:01,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:01,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:01,067 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:01,069 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:01,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:01,069 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2021-12-21 21:56:01,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:01,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910480099] [2021-12-21 21:56:01,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:01,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:01,073 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:01,077 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:01,087 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:01,087 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:01,087 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:01,087 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:01,087 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-21 21:56:01,087 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,087 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:01,088 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:01,088 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2021-12-21 21:56:01,088 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:01,088 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:01,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,134 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:01,134 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-21 21:56:01,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,136 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) [2021-12-21 21:56:01,137 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 [2021-12-21 21:56:01,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:01,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:01,155 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:56:01,155 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: [] [2021-12-21 21:56:01,172 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 [2021-12-21 21:56:01,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,174 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) [2021-12-21 21:56:01,175 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 [2021-12-21 21:56:01,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:01,220 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:01,231 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:56:01,231 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: [] [2021-12-21 21:56:01,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:01,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,249 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) [2021-12-21 21:56:01,250 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 [2021-12-21 21:56:01,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:01,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:01,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:01,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,277 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) [2021-12-21 21:56:01,283 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 [2021-12-21 21:56:01,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-21 21:56:01,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:01,313 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-21 21:56:01,316 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 [2021-12-21 21:56:01,316 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:01,316 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:01,316 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:01,316 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:01,316 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 21:56:01,316 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,316 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:01,316 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:01,316 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2021-12-21 21:56:01,316 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:01,316 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:01,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,368 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:01,369 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 21:56:01,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,370 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) [2021-12-21 21:56:01,382 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 [2021-12-21 21:56:01,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:01,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:01,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:01,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:01,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 21:56:01,392 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 21:56:01,395 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 [2021-12-21 21:56:01,403 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 21:56:01,421 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 [2021-12-21 21:56:01,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,423 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) [2021-12-21 21:56:01,424 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 [2021-12-21 21:56:01,425 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 [2021-12-21 21:56:01,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:01,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:01,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:01,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:01,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 21:56:01,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 21:56:01,446 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 21:56:01,465 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 [2021-12-21 21:56:01,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,466 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) [2021-12-21 21:56:01,467 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 [2021-12-21 21:56:01,468 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 [2021-12-21 21:56:01,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:01,476 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 21:56:01,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:01,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:01,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:01,477 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 21:56:01,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 21:56:01,491 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 21:56:01,492 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-12-21 21:56:01,492 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-21 21:56:01,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,499 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) [2021-12-21 21:56:01,539 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 [2021-12-21 21:56:01,546 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 21:56:01,546 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-21 21:56:01,546 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 21:56:01,546 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 [] [2021-12-21 21:56:01,546 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 [2021-12-21 21:56:01,571 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 [2021-12-21 21:56:01,572 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-21 21:56:01,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:01,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 21:56:01,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:01,594 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 21:56:01,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:01,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:01,595 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 [2021-12-21 21:56:01,595 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) [2021-12-21 21:56:01,603 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. [2021-12-21 21:56:01,607 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 [2021-12-21 21:56:01,608 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) [2021-12-21 21:56:01,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-12-21 21:56:01,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2021-12-21 21:56:01,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:01,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2021-12-21 21:56:01,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:01,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-21 21:56:01,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:01,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2021-12-21 21:56:01,610 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-21 21:56:01,610 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2021-12-21 21:56:01,610 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-12-21 21:56:01,610 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-12-21 21:56:01,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2021-12-21 21:56:01,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 21:56:01,610 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-12-21 21:56:01,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2021-12-21 21:56:01,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 8. [2021-12-21 21:56:01,611 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) [2021-12-21 21:56:01,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-12-21 21:56:01,612 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-12-21 21:56:01,612 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-12-21 21:56:01,612 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 21:56:01,612 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2021-12-21 21:56:01,615 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-21 21:56:01,615 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:56:01,615 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:56:01,615 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-12-21 21:56:01,616 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-21 21:56:01,616 INFO L791 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 [2021-12-21 21:56:01,616 INFO L793 eck$LassoCheckResult]: Loop: 153#L19-2 assume !!(main_~j~0#1 > 0);main_~j~0#1 := main_~j~0#1 - 1; 153#L19-2 [2021-12-21 21:56:01,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:01,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1810841241, now seen corresponding path program 1 times [2021-12-21 21:56:01,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:01,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635483623] [2021-12-21 21:56:01,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:01,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:01,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:01,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 21:56:01,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635483623] [2021-12-21 21:56:01,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635483623] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 21:56:01,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755645042] [2021-12-21 21:56:01,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:01,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 21:56:01,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,685 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) [2021-12-21 21:56:01,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-21 21:56:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:01,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 21:56:01,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:01,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:01,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 21:56:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:01,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755645042] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 21:56:01,855 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 21:56:01,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-21 21:56:01,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209023195] [2021-12-21 21:56:01,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 21:56:01,856 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-21 21:56:01,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:01,857 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2021-12-21 21:56:01,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:01,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585586266] [2021-12-21 21:56:01,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:01,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:01,868 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:01,877 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:01,893 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:01,893 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:01,893 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:01,893 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:01,893 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-21 21:56:01,894 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,894 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:01,894 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:01,894 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2021-12-21 21:56:01,894 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:01,894 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:01,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:01,936 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:01,937 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-21 21:56:01,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,944 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) [2021-12-21 21:56:01,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:01,956 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:01,965 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 [2021-12-21 21:56:01,983 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 [2021-12-21 21:56:01,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:01,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:01,984 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) [2021-12-21 21:56:01,985 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 [2021-12-21 21:56:01,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-21 21:56:01,986 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:02,025 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-21 21:56:02,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:02,034 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:02,034 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:02,034 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:02,034 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:02,034 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 21:56:02,035 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,035 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:02,035 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:02,035 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2021-12-21 21:56:02,035 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:02,035 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:02,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:02,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:02,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:02,070 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:02,071 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 21:56:02,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:02,072 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) [2021-12-21 21:56:02,080 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 [2021-12-21 21:56:02,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:02,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 21:56:02,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:02,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:02,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:02,088 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 21:56:02,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 21:56:02,090 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 [2021-12-21 21:56:02,098 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 21:56:02,102 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-21 21:56:02,102 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-21 21:56:02,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:02,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:02,104 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) [2021-12-21 21:56:02,104 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 [2021-12-21 21:56:02,106 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 21:56:02,106 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-21 21:56:02,106 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 21:56:02,106 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 [] [2021-12-21 21:56:02,123 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 [2021-12-21 21:56:02,124 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-21 21:56:02,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:02,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 21:56:02,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:02,164 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 21:56:02,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:02,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:02,167 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 [2021-12-21 21:56:02,167 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) [2021-12-21 21:56:02,179 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. [2021-12-21 21:56:02,179 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 [2021-12-21 21:56:02,180 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) [2021-12-21 21:56:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-12-21 21:56:02,180 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2021-12-21 21:56:02,180 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:02,180 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-21 21:56:02,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:02,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 21:56:02,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:02,213 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 21:56:02,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:02,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:02,214 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 [2021-12-21 21:56:02,214 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) [2021-12-21 21:56:02,225 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. [2021-12-21 21:56:02,226 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 [2021-12-21 21:56:02,228 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) [2021-12-21 21:56:02,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-12-21 21:56:02,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2021-12-21 21:56:02,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:02,229 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-21 21:56:02,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:02,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 21:56:02,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:02,261 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 21:56:02,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:02,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:02,262 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 [2021-12-21 21:56:02,262 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) [2021-12-21 21:56:02,273 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. [2021-12-21 21:56:02,273 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 [2021-12-21 21:56:02,274 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) [2021-12-21 21:56:02,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2021-12-21 21:56:02,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 1 letters. [2021-12-21 21:56:02,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:02,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 1 letters. [2021-12-21 21:56:02,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:02,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-21 21:56:02,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:02,275 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-12-21 21:56:02,275 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 21:56:02,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2021-12-21 21:56:02,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 21:56:02,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 21:56:02,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 21:56:02,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 21:56:02,276 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 21:56:02,276 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 21:56:02,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 21:56:02,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-21 21:56:02,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-12-21 21:56:02,277 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) [2021-12-21 21:56:02,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 21:56:02,277 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-12-21 21:56:02,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 21:56:02,277 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-12-21 21:56:02,277 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 21:56:02,277 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 21:56:02,278 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 21:56:02,278 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 21:56:02,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 21:56:02,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 21:56:02,278 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 21:56:02,278 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 21:56:02,278 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 21:56:02,278 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-21 21:56:02,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-21 21:56:02,278 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 21:56:02,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-21 21:56:02,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 09:56:02 BoogieIcfgContainer [2021-12-21 21:56:02,284 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 21:56:02,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 21:56:02,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 21:56:02,285 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 21:56:02,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:55:59" (3/4) ... [2021-12-21 21:56:02,287 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 21:56:02,287 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 21:56:02,288 INFO L158 Benchmark]: Toolchain (without parser) took 2930.97ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 60.8MB in the beginning and 48.9MB in the end (delta: 11.9MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2021-12-21 21:56:02,288 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 90.2MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 65.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 21:56:02,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.56ms. Allocated memory is still 90.2MB. Free memory was 60.6MB in the beginning and 69.2MB in the end (delta: -8.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 21:56:02,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.59ms. Allocated memory is still 90.2MB. Free memory was 69.2MB in the beginning and 67.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:56:02,289 INFO L158 Benchmark]: Boogie Preprocessor took 15.29ms. Allocated memory is still 90.2MB. Free memory was 67.9MB in the beginning and 67.1MB in the end (delta: 795.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 21:56:02,289 INFO L158 Benchmark]: RCFGBuilder took 209.46ms. Allocated memory is still 90.2MB. Free memory was 66.7MB in the beginning and 59.2MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 21:56:02,290 INFO L158 Benchmark]: BuchiAutomizer took 2437.88ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 58.7MB in the beginning and 49.5MB in the end (delta: 9.3MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2021-12-21 21:56:02,290 INFO L158 Benchmark]: Witness Printer took 2.67ms. Allocated memory is still 109.1MB. Free memory was 49.5MB in the beginning and 48.9MB in the end (delta: 584.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:56:02,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 90.2MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 65.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.56ms. Allocated memory is still 90.2MB. Free memory was 60.6MB in the beginning and 69.2MB in the end (delta: -8.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.59ms. Allocated memory is still 90.2MB. Free memory was 69.2MB in the beginning and 67.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.29ms. Allocated memory is still 90.2MB. Free memory was 67.9MB in the beginning and 67.1MB in the end (delta: 795.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 209.46ms. Allocated memory is still 90.2MB. Free memory was 66.7MB in the beginning and 59.2MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 2437.88ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 58.7MB in the beginning and 49.5MB in the end (delta: 9.3MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Witness Printer took 2.67ms. Allocated memory is still 109.1MB. Free memory was 49.5MB in the beginning and 48.9MB in the end (delta: 584.4kB). 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 2.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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 8 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: 50ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-21 21:56:02,320 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 [2021-12-21 21:56:02,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-12-21 21:56:02,777 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 [2021-12-21 21:56:02,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE