./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 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/ChenFlurMukhopadhyay-SAS2012-Ex3.01.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 706881f151574cd444dafd615d249704df8f903990098d13198cd104c5c995e4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:02:42,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:02:42,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:02:42,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:02:42,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:02:42,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:02:42,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:02:42,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:02:42,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:02:42,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:02:42,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:02:42,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:02:42,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:02:42,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:02:42,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:02:42,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:02:42,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:02:42,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:02:42,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:02:42,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:02:42,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:02:42,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:02:42,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:02:42,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:02:42,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:02:42,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:02:42,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:02:42,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:02:42,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:02:42,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:02:42,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:02:42,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:02:42,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:02:42,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:02:42,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:02:42,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:02:42,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:02:42,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:02:42,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:02:42,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:02:42,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:02:42,975 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-28 09:02:43,000 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:02:43,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:02:43,000 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:02:43,000 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:02:43,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:02:43,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:02:43,001 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:02:43,001 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:02:43,002 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:02:43,002 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:02:43,002 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:02:43,002 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:02:43,002 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:02:43,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:02:43,002 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:02:43,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:02:43,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:02:43,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:02:43,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:02:43,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:02:43,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:02:43,003 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:02:43,003 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:02:43,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:02:43,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:02:43,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:02:43,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:02:43,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:02:43,005 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:02:43,005 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 706881f151574cd444dafd615d249704df8f903990098d13198cd104c5c995e4 [2021-12-28 09:02:43,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:02:43,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:02:43,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:02:43,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:02:43,288 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:02:43,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c [2021-12-28 09:02:43,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e22020091/c0125822fea145c99c96c2773121335a/FLAGb8b4e6265 [2021-12-28 09:02:43,705 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:02:43,706 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c [2021-12-28 09:02:43,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e22020091/c0125822fea145c99c96c2773121335a/FLAGb8b4e6265 [2021-12-28 09:02:43,724 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e22020091/c0125822fea145c99c96c2773121335a [2021-12-28 09:02:43,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:02:43,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:02:43,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:02:43,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:02:43,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:02:43,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:02:43" (1/1) ... [2021-12-28 09:02:43,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cfcd712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:02:43, skipping insertion in model container [2021-12-28 09:02:43,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:02:43" (1/1) ... [2021-12-28 09:02:43,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:02:43,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:02:43,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:02:43,850 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:02:43,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:02:43,902 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:02:43,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:02:43 WrapperNode [2021-12-28 09:02:43,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:02:43,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:02:43,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:02:43,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:02:43,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:02:43" (1/1) ... [2021-12-28 09:02:43,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:02:43" (1/1) ... [2021-12-28 09:02:43,929 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2021-12-28 09:02:43,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:02:43,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:02:43,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:02:43,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:02:43,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:02:43" (1/1) ... [2021-12-28 09:02:43,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:02:43" (1/1) ... [2021-12-28 09:02:43,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:02:43" (1/1) ... [2021-12-28 09:02:43,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:02:43" (1/1) ... [2021-12-28 09:02:43,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:02:43" (1/1) ... [2021-12-28 09:02:43,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:02:43" (1/1) ... [2021-12-28 09:02:43,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:02:43" (1/1) ... [2021-12-28 09:02:43,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:02:43,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:02:43,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:02:43,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:02:43,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:02:43" (1/1) ... [2021-12-28 09:02:43,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:02:43,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:02:44,004 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) [2021-12-28 09:02:44,038 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 [2021-12-28 09:02:44,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:02:44,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:02:44,115 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:02:44,116 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:02:44,188 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:02:44,192 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:02:44,193 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 09:02:44,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:02:44 BoogieIcfgContainer [2021-12-28 09:02:44,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:02:44,195 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:02:44,196 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:02:44,198 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:02:44,199 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:02:44,200 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:02:43" (1/3) ... [2021-12-28 09:02:44,200 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f436ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:02:44, skipping insertion in model container [2021-12-28 09:02:44,201 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:02:44,201 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:02:43" (2/3) ... [2021-12-28 09:02:44,201 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f436ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:02:44, skipping insertion in model container [2021-12-28 09:02:44,201 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:02:44,201 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:02:44" (3/3) ... [2021-12-28 09:02:44,202 INFO L388 chiAutomizerObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex3.01.c [2021-12-28 09:02:44,241 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:02:44,241 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:02:44,241 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:02:44,241 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:02:44,241 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:02:44,242 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:02:44,242 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:02:44,242 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:02:44,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:02:44,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-28 09:02:44,272 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:02:44,272 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:02:44,276 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-28 09:02:44,276 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-28 09:02:44,276 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:02:44,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:02:44,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-28 09:02:44,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:02:44,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:02:44,278 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-28 09:02:44,278 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-28 09:02:44,283 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 8#L27-2true [2021-12-28 09:02:44,285 INFO L793 eck$LassoCheckResult]: Loop: 8#L27-2true assume !!(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~y~0#1 := main_~z~0#1; 8#L27-2true [2021-12-28 09:02:44,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:02:44,289 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-28 09:02:44,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:02:44,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150554662] [2021-12-28 09:02:44,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:02:44,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:02:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:02:44,353 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:02:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:02:44,367 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:02:44,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:02:44,375 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-12-28 09:02:44,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:02:44,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076338253] [2021-12-28 09:02:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:02:44,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:02:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:02:44,390 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:02:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:02:44,402 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:02:44,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:02:44,404 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-12-28 09:02:44,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:02:44,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288949831] [2021-12-28 09:02:44,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:02:44,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:02:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:02:44,408 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:02:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:02:44,411 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:02:44,475 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:02:44,476 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:02:44,476 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:02:44,476 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:02:44,476 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-28 09:02:44,476 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:02:44,476 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:02:44,476 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:02:44,477 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChenFlurMukhopadhyay-SAS2012-Ex3.01.c_Iteration1_Loop [2021-12-28 09:02:44,477 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:02:44,486 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:02:44,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:02:44,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:02:44,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:02:44,583 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:02:44,583 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-28 09:02:44,585 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:02:44,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:02:44,586 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) [2021-12-28 09:02:44,592 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 [2021-12-28 09:02:44,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:02:44,594 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:02:44,610 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-28 09:02:44,610 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: [] [2021-12-28 09:02:44,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-28 09:02:44,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:02:44,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:02:44,629 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) [2021-12-28 09:02:44,630 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 [2021-12-28 09:02:44,632 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:02:44,632 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:02:44,645 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-28 09:02:44,645 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: [] [2021-12-28 09:02:44,661 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 [2021-12-28 09:02:44,661 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:02:44,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:02:44,662 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) [2021-12-28 09:02:44,666 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 [2021-12-28 09:02:44,666 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:02:44,666 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:02:44,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-28 09:02:44,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:02:44,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:02:44,703 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) [2021-12-28 09:02:44,703 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 [2021-12-28 09:02:44,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-28 09:02:44,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:02:45,081 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-28 09:02:45,085 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 [2021-12-28 09:02:45,085 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:02:45,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:02:45,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:02:45,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:02:45,086 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-28 09:02:45,086 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:02:45,086 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:02:45,086 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:02:45,086 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChenFlurMukhopadhyay-SAS2012-Ex3.01.c_Iteration1_Loop [2021-12-28 09:02:45,086 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:02:45,090 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:02:45,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:02:45,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:02:45,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:02:45,148 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:02:45,151 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-28 09:02:45,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:02:45,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:02:45,159 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) [2021-12-28 09:02:45,160 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 [2021-12-28 09:02:45,162 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 [2021-12-28 09:02:45,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:02:45,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:02:45,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:02:45,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:02:45,176 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:02:45,176 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:02:45,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:02:45,224 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 [2021-12-28 09:02:45,224 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:02:45,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:02:45,226 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) [2021-12-28 09:02:45,226 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 [2021-12-28 09:02:45,228 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 [2021-12-28 09:02:45,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:02:45,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:02:45,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:02:45,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:02:45,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:02:45,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:02:45,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:02:45,253 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:02:45,270 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 [2021-12-28 09:02:45,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:02:45,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:02:45,272 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) [2021-12-28 09:02:45,272 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 [2021-12-28 09:02:45,273 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 [2021-12-28 09:02:45,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:02:45,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:02:45,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:02:45,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:02:45,282 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:02:45,282 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:02:45,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:02:45,306 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 [2021-12-28 09:02:45,307 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-12-28 09:02:45,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:02:45,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:02:45,308 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) [2021-12-28 09:02:45,309 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 [2021-12-28 09:02:45,341 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 [2021-12-28 09:02:45,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:02:45,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:02:45,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:02:45,348 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-12-28 09:02:45,353 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-12-28 09:02:45,353 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-12-28 09:02:45,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:02:45,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-28 09:02:45,387 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:02:45,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:02:45,388 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) [2021-12-28 09:02:45,388 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 [2021-12-28 09:02:45,390 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 [2021-12-28 09:02:45,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:02:45,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:02:45,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:02:45,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:02:45,397 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-12-28 09:02:45,401 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-12-28 09:02:45,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:02:45,406 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-28 09:02:45,416 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-12-28 09:02:45,416 INFO L444 ModelExtractionUtils]: 2 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-12-28 09:02:45,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:02:45,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:02:45,418 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) [2021-12-28 09:02:45,419 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 [2021-12-28 09:02:45,420 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-28 09:02:45,420 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-28 09:02:45,420 INFO L513 LassoAnalysis]: Proved termination. [2021-12-28 09:02:45,421 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~z~0#1 f1 = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-12-28 09:02:45,439 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 [2021-12-28 09:02:45,443 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-28 09:02:45,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:02:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:02:45,476 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 09:02:45,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:02:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:02:45,491 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 09:02:45,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:02:45,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:02:45,515 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 [2021-12-28 09:02:45,516 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-12-28 09:02:45,546 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 16 states and 19 transitions. Complement of second has 5 states. [2021-12-28 09:02:45,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-28 09:02:45,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-12-28 09:02:45,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-12-28 09:02:45,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2021-12-28 09:02:45,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:02:45,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2021-12-28 09:02:45,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:02:45,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2021-12-28 09:02:45,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:02:45,554 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2021-12-28 09:02:45,557 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:02:45,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2021-12-28 09:02:45,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-28 09:02:45,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-28 09:02:45,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-28 09:02:45,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:02:45,559 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:02:45,559 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:02:45,560 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:02:45,560 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:02:45,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-28 09:02:45,560 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:02:45,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-28 09:02:45,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:02:45 BoogieIcfgContainer [2021-12-28 09:02:45,586 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:02:45,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:02:45,587 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:02:45,587 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:02:45,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:02:44" (3/4) ... [2021-12-28 09:02:45,590 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-28 09:02:45,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:02:45,595 INFO L158 Benchmark]: Toolchain (without parser) took 1866.28ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 33.2MB in the beginning and 47.2MB in the end (delta: -14.0MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2021-12-28 09:02:45,596 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 36.2MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:02:45,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 173.29ms. Allocated memory is still 54.5MB. Free memory was 33.0MB in the beginning and 38.1MB in the end (delta: -5.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-28 09:02:45,599 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.58ms. Allocated memory is still 54.5MB. Free memory was 38.1MB in the beginning and 36.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:02:45,600 INFO L158 Benchmark]: Boogie Preprocessor took 14.84ms. Allocated memory is still 54.5MB. Free memory was 36.8MB in the beginning and 35.8MB in the end (delta: 997.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:02:45,600 INFO L158 Benchmark]: RCFGBuilder took 246.98ms. Allocated memory is still 54.5MB. Free memory was 35.8MB in the beginning and 28.4MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-28 09:02:45,600 INFO L158 Benchmark]: BuchiAutomizer took 1390.42ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 28.3MB in the beginning and 47.5MB in the end (delta: -19.2MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2021-12-28 09:02:45,602 INFO L158 Benchmark]: Witness Printer took 7.24ms. Allocated memory is still 67.1MB. Free memory was 47.5MB in the beginning and 47.2MB in the end (delta: 302.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:02:45,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2021-12-28 09:02:45,607 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 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 36.2MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 173.29ms. Allocated memory is still 54.5MB. Free memory was 33.0MB in the beginning and 38.1MB in the end (delta: -5.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.58ms. Allocated memory is still 54.5MB. Free memory was 38.1MB in the beginning and 36.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.84ms. Allocated memory is still 54.5MB. Free memory was 36.8MB in the beginning and 35.8MB in the end (delta: 997.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 246.98ms. Allocated memory is still 54.5MB. Free memory was 35.8MB in the beginning and 28.4MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1390.42ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 28.3MB in the beginning and 47.5MB in the end (delta: -19.2MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Witness Printer took 7.24ms. Allocated memory is still 67.1MB. Free memory was 47.5MB in the beginning and 47.2MB in the end (delta: 302.9kB). 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function (if z + -1 * x > 0 then 1 else 0), (if z + -1 * x > 0 then z + -1 * x else y + -1 * x) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf91 smp100 dnf100 smp100 tf109 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 62ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-28 09:02:45,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE