./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-numeric/TerminatorRec02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e8d55036 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-numeric/TerminatorRec02.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 744c3d26555bbd53a7a0d9e7c64efe010ba06d0f67ec9ca21eb74ed1148222d3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 23:14:30,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 23:14:30,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 23:14:30,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 23:14:30,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 23:14:30,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 23:14:30,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 23:14:30,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 23:14:30,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 23:14:30,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 23:14:30,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 23:14:30,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 23:14:30,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 23:14:30,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 23:14:30,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 23:14:30,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 23:14:30,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 23:14:30,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 23:14:30,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 23:14:30,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 23:14:30,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 23:14:30,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 23:14:30,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 23:14:30,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 23:14:30,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 23:14:30,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 23:14:30,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 23:14:30,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 23:14:30,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 23:14:30,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 23:14:30,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 23:14:30,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 23:14:30,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 23:14:30,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 23:14:30,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 23:14:30,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 23:14:30,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 23:14:30,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 23:14:30,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 23:14:30,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 23:14:30,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 23:14:30,616 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 23:14:30,638 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 23:14:30,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 23:14:30,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 23:14:30,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 23:14:30,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 23:14:30,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 23:14:30,639 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 23:14:30,640 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 23:14:30,640 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 23:14:30,640 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 23:14:30,640 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 23:14:30,640 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 23:14:30,640 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 23:14:30,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 23:14:30,641 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 23:14:30,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 23:14:30,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 23:14:30,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 23:14:30,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 23:14:30,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 23:14:30,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 23:14:30,641 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 23:14:30,641 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 23:14:30,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 23:14:30,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 23:14:30,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 23:14:30,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 23:14:30,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 23:14:30,642 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 23:14:30,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 744c3d26555bbd53a7a0d9e7c64efe010ba06d0f67ec9ca21eb74ed1148222d3 [2023-02-15 23:14:30,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 23:14:30,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 23:14:30,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 23:14:30,843 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 23:14:30,843 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 23:14:30,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/TerminatorRec02.c [2023-02-15 23:14:31,791 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 23:14:31,936 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 23:14:31,937 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/TerminatorRec02.c [2023-02-15 23:14:31,941 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88452a749/516b664d18754a18a7d614d894cc58f2/FLAG38e1e8453 [2023-02-15 23:14:31,950 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88452a749/516b664d18754a18a7d614d894cc58f2 [2023-02-15 23:14:31,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 23:14:31,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 23:14:31,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 23:14:31,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 23:14:31,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 23:14:31,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:14:31" (1/1) ... [2023-02-15 23:14:31,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f172ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:14:31, skipping insertion in model container [2023-02-15 23:14:31,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:14:31" (1/1) ... [2023-02-15 23:14:31,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 23:14:31,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 23:14:32,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 23:14:32,054 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 23:14:32,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 23:14:32,072 INFO L208 MainTranslator]: Completed translation [2023-02-15 23:14:32,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:14:32 WrapperNode [2023-02-15 23:14:32,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 23:14:32,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 23:14:32,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 23:14:32,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 23:14:32,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:14:32" (1/1) ... [2023-02-15 23:14:32,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:14:32" (1/1) ... [2023-02-15 23:14:32,095 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2023-02-15 23:14:32,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 23:14:32,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 23:14:32,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 23:14:32,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 23:14:32,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:14:32" (1/1) ... [2023-02-15 23:14:32,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:14:32" (1/1) ... [2023-02-15 23:14:32,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:14:32" (1/1) ... [2023-02-15 23:14:32,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:14:32" (1/1) ... [2023-02-15 23:14:32,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:14:32" (1/1) ... [2023-02-15 23:14:32,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:14:32" (1/1) ... [2023-02-15 23:14:32,109 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:14:32" (1/1) ... [2023-02-15 23:14:32,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:14:32" (1/1) ... [2023-02-15 23:14:32,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 23:14:32,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 23:14:32,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 23:14:32,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 23:14:32,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:14:32" (1/1) ... [2023-02-15 23:14:32,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:14:32,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:14:32,135 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) [2023-02-15 23:14:32,141 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 [2023-02-15 23:14:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2023-02-15 23:14:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2023-02-15 23:14:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 23:14:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 23:14:32,209 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 23:14:32,210 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 23:14:32,308 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 23:14:32,315 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 23:14:32,315 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 23:14:32,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:14:32 BoogieIcfgContainer [2023-02-15 23:14:32,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 23:14:32,319 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 23:14:32,319 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 23:14:32,321 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 23:14:32,322 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 23:14:32,322 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 11:14:31" (1/3) ... [2023-02-15 23:14:32,323 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33c82761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 11:14:32, skipping insertion in model container [2023-02-15 23:14:32,323 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 23:14:32,323 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:14:32" (2/3) ... [2023-02-15 23:14:32,323 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33c82761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 11:14:32, skipping insertion in model container [2023-02-15 23:14:32,323 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 23:14:32,324 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:14:32" (3/3) ... [2023-02-15 23:14:32,326 INFO L332 chiAutomizerObserver]: Analyzing ICFG TerminatorRec02.c [2023-02-15 23:14:32,388 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 23:14:32,389 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 23:14:32,389 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 23:14:32,389 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 23:14:32,389 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 23:14:32,389 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 23:14:32,389 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 23:14:32,389 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 23:14:32,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-15 23:14:32,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-15 23:14:32,409 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 23:14:32,409 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 23:14:32,413 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-15 23:14:32,413 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-15 23:14:32,413 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 23:14:32,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-15 23:14:32,415 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-15 23:14:32,415 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 23:14:32,415 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 23:14:32,416 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-15 23:14:32,416 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-15 23:14:32,421 INFO L748 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~x~0#1, main_~y~1#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L27true assume !(main_~x~0#1 < 0);main_~y~1#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 4#L30true assume !(main_~y~1#1 < 0);main_~z~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 10#L33true call main_#t~ret4#1 := fact(main_~x~0#1);< 13#$Ultimate##0true [2023-02-15 23:14:32,421 INFO L750 eck$LassoCheckResult]: Loop: 13#$Ultimate##0true ~x := #in~x; 15#L18true assume ~x > 1; 7#L19true call #t~ret0 := fact(~x - 1);< 13#$Ultimate##0true [2023-02-15 23:14:32,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:14:32,424 INFO L85 PathProgramCache]: Analyzing trace with hash 36330292, now seen corresponding path program 1 times [2023-02-15 23:14:32,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:14:32,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888961647] [2023-02-15 23:14:32,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:14:32,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:14:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:14:32,522 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:14:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:14:32,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:14:32,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:14:32,539 INFO L85 PathProgramCache]: Analyzing trace with hash 29910, now seen corresponding path program 1 times [2023-02-15 23:14:32,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:14:32,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44148517] [2023-02-15 23:14:32,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:14:32,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:14:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:14:32,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:14:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:14:32,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:14:32,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:14:32,548 INFO L85 PathProgramCache]: Analyzing trace with hash -16029501, now seen corresponding path program 1 times [2023-02-15 23:14:32,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:14:32,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970903146] [2023-02-15 23:14:32,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:14:32,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:14:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:14:32,554 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:14:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:14:32,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:14:32,618 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:14:32,618 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:14:32,618 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:14:32,618 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:14:32,618 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 23:14:32,618 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:14:32,619 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:14:32,619 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:14:32,619 INFO L133 ssoRankerPreferences]: Filename of dumped script: TerminatorRec02.c_Iteration1_Loop [2023-02-15 23:14:32,619 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:14:32,619 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:14:32,628 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:14:32,634 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:14:32,636 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:14:32,643 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:14:32,645 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:14:32,677 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:14:32,677 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 23:14:32,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:14:32,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:14:32,681 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) [2023-02-15 23:14:32,682 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 [2023-02-15 23:14:32,683 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:14:32,683 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:14:32,707 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 23:14:32,707 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fact_~y~0=0} Honda state: {fact_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 23:14:32,711 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 [2023-02-15 23:14:32,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:14:32,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:14:32,712 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) [2023-02-15 23:14:32,714 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 [2023-02-15 23:14:32,716 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:14:32,716 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:14:32,737 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 23:14:32,737 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fact_~x=0} Honda state: {fact_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 23:14:32,743 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 [2023-02-15 23:14:32,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:14:32,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:14:32,765 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) [2023-02-15 23:14:32,767 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 [2023-02-15 23:14:32,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:14:32,769 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:14:32,796 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 [2023-02-15 23:14:32,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:14:32,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:14:32,798 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) [2023-02-15 23:14:32,799 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 [2023-02-15 23:14:32,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 23:14:32,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:14:32,846 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 23:14:32,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-15 23:14:32,850 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:14:32,850 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:14:32,850 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:14:32,850 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:14:32,851 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 23:14:32,851 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:14:32,851 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:14:32,851 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:14:32,851 INFO L133 ssoRankerPreferences]: Filename of dumped script: TerminatorRec02.c_Iteration1_Loop [2023-02-15 23:14:32,851 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:14:32,851 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:14:32,852 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:14:32,860 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:14:32,870 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:14:32,872 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:14:32,877 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:14:32,911 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:14:32,914 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 23:14:32,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:14:32,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:14:32,917 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) [2023-02-15 23:14:32,920 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 [2023-02-15 23:14:32,923 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 [2023-02-15 23:14:32,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:14:32,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:14:32,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:14:32,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:14:32,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:14:32,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:14:32,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:14:32,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:14:32,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-15 23:14:32,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:14:32,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:14:32,951 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) [2023-02-15 23:14:32,953 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 [2023-02-15 23:14:32,954 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 [2023-02-15 23:14:32,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:14:32,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:14:32,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:14:32,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:14:32,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:14:32,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:14:32,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:14:32,977 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:14:32,981 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 [2023-02-15 23:14:32,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:14:32,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:14:32,982 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) [2023-02-15 23:14:32,982 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 [2023-02-15 23:14:32,985 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 [2023-02-15 23:14:32,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:14:32,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:14:32,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:14:32,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:14:32,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:14:32,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:14:32,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:14:33,000 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:14:33,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-15 23:14:33,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:14:33,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:14:33,007 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) [2023-02-15 23:14:33,007 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 [2023-02-15 23:14:33,010 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 [2023-02-15 23:14:33,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:14:33,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:14:33,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:14:33,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:14:33,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:14:33,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:14:33,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:14:33,019 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 23:14:33,022 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-15 23:14:33,022 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-15 23:14:33,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:14:33,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:14:33,061 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) [2023-02-15 23:14:33,062 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 [2023-02-15 23:14:33,064 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 23:14:33,064 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 23:14:33,064 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 23:14:33,065 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fact_#in~x) = 1*fact_#in~x Supporting invariants [] [2023-02-15 23:14:33,070 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 [2023-02-15 23:14:33,072 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 23:14:33,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:14:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:14:33,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 23:14:33,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:14:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:14:33,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 23:14:33,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:14:33,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:14:33,177 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-15 23:14:33,178 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:14:33,232 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 38 transitions. Complement of second has 12 states. [2023-02-15 23:14:33,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-15 23:14:33,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:14:33,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-02-15 23:14:33,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-15 23:14:33,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:14:33,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 3 letters. [2023-02-15 23:14:33,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:14:33,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 6 letters. [2023-02-15 23:14:33,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:14:33,241 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 38 transitions. [2023-02-15 23:14:33,243 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 23:14:33,244 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2023-02-15 23:14:33,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-15 23:14:33,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-15 23:14:33,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-15 23:14:33,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 23:14:33,245 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 23:14:33,246 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 23:14:33,246 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 23:14:33,246 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 23:14:33,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-15 23:14:33,246 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 23:14:33,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-15 23:14:33,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.02 11:14:33 BoogieIcfgContainer [2023-02-15 23:14:33,251 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-15 23:14:33,252 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 23:14:33,252 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 23:14:33,252 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 23:14:33,252 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:14:32" (3/4) ... [2023-02-15 23:14:33,254 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 23:14:33,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 23:14:33,255 INFO L158 Benchmark]: Toolchain (without parser) took 1301.05ms. Allocated memory is still 125.8MB. Free memory was 92.5MB in the beginning and 56.6MB in the end (delta: 35.9MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2023-02-15 23:14:33,255 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 23:14:33,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 117.08ms. Allocated memory is still 125.8MB. Free memory was 92.2MB in the beginning and 83.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 23:14:33,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.65ms. Allocated memory is still 125.8MB. Free memory was 83.2MB in the beginning and 81.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 23:14:33,256 INFO L158 Benchmark]: Boogie Preprocessor took 12.92ms. Allocated memory is still 125.8MB. Free memory was 81.9MB in the beginning and 80.9MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-15 23:14:33,257 INFO L158 Benchmark]: RCFGBuilder took 206.09ms. Allocated memory is still 125.8MB. Free memory was 80.9MB in the beginning and 72.2MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 23:14:33,257 INFO L158 Benchmark]: BuchiAutomizer took 932.45ms. Allocated memory is still 125.8MB. Free memory was 72.0MB in the beginning and 56.6MB in the end (delta: 15.4MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-02-15 23:14:33,257 INFO L158 Benchmark]: Witness Printer took 2.73ms. Allocated memory is still 125.8MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 23:14:33,259 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 117.08ms. Allocated memory is still 125.8MB. Free memory was 92.2MB in the beginning and 83.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.65ms. Allocated memory is still 125.8MB. Free memory was 83.2MB in the beginning and 81.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.92ms. Allocated memory is still 125.8MB. Free memory was 81.9MB in the beginning and 80.9MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 206.09ms. Allocated memory is still 125.8MB. Free memory was 80.9MB in the beginning and 72.2MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 932.45ms. Allocated memory is still 125.8MB. Free memory was 72.0MB in the beginning and 56.6MB in the end (delta: 15.4MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Witness Printer took 2.73ms. Allocated memory is still 125.8MB. Free memory is still 56.6MB. 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 affine ranking function \old(x) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 11 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-15 23:14:33,289 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 [2023-02-15 23:14:33,489 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