./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c 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/4NestedWith3Variables-1.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 b39ec4b52f8da315ff57d8e97152c727a55203720ed4bc216d0daa6b94e35d48 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:04:57,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:04:57,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:04:57,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:04:57,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:04:57,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:04:57,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:04:57,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:04:57,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:04:57,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:04:57,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:04:57,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:04:57,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:04:57,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:04:57,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:04:57,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:04:57,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:04:57,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:04:57,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:04:57,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:04:57,401 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:04:57,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:04:57,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:04:57,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:04:57,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:04:57,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:04:57,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:04:57,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:04:57,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:04:57,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:04:57,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:04:57,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:04:57,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:04:57,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:04:57,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:04:57,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:04:57,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:04:57,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:04:57,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:04:57,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:04:57,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:04:57,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:04:57,418 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-13 03:04:57,440 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:04:57,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:04:57,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:04:57,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:04:57,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:04:57,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:04:57,443 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:04:57,443 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:04:57,443 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:04:57,444 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:04:57,444 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:04:57,444 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:04:57,444 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:04:57,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:04:57,444 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:04:57,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:04:57,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:04:57,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:04:57,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:04:57,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:04:57,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:04:57,445 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:04:57,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:04:57,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:04:57,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:04:57,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:04:57,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:04:57,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:04:57,447 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:04:57,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b39ec4b52f8da315ff57d8e97152c727a55203720ed4bc216d0daa6b94e35d48 [2022-07-13 03:04:57,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:04:57,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:04:57,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:04:57,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:04:57,692 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:04:57,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c [2022-07-13 03:04:57,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74eff96a3/caed9da0f1564b8987db745bba70b513/FLAG1b7668207 [2022-07-13 03:04:58,103 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:04:58,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c [2022-07-13 03:04:58,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74eff96a3/caed9da0f1564b8987db745bba70b513/FLAG1b7668207 [2022-07-13 03:04:58,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74eff96a3/caed9da0f1564b8987db745bba70b513 [2022-07-13 03:04:58,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:04:58,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:04:58,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:04:58,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:04:58,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:04:58,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3cca8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58, skipping insertion in model container [2022-07-13 03:04:58,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:04:58,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:04:58,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:04:58,263 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:04:58,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:04:58,284 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:04:58,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58 WrapperNode [2022-07-13 03:04:58,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:04:58,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:04:58,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:04:58,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:04:58,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,312 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2022-07-13 03:04:58,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:04:58,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:04:58,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:04:58,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:04:58,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:04:58,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:04:58,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:04:58,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:04:58,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (1/1) ... [2022-07-13 03:04:58,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:04:58,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:04:58,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:04:58,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-13 03:04:58,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:04:58,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:04:58,429 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:04:58,430 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:04:58,492 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:04:58,497 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:04:58,498 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 03:04:58,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:04:58 BoogieIcfgContainer [2022-07-13 03:04:58,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:04:58,500 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:04:58,500 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:04:58,502 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:04:58,503 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:04:58,503 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:04:58" (1/3) ... [2022-07-13 03:04:58,504 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b5ce6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:04:58, skipping insertion in model container [2022-07-13 03:04:58,504 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:04:58,504 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:04:58" (2/3) ... [2022-07-13 03:04:58,505 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b5ce6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:04:58, skipping insertion in model container [2022-07-13 03:04:58,505 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:04:58,505 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:04:58" (3/3) ... [2022-07-13 03:04:58,506 INFO L354 chiAutomizerObserver]: Analyzing ICFG 4NestedWith3Variables-1.c [2022-07-13 03:04:58,543 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:04:58,544 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:04:58,544 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:04:58,544 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:04:58,544 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:04:58,544 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:04:58,544 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:04:58,545 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:04:58,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:04:58,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:04:58,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:04:58,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:04:58,563 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-13 03:04:58,564 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-13 03:04:58,564 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:04:58,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:04:58,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:04:58,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:04:58,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:04:58,565 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-13 03:04:58,566 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-13 03:04:58,570 INFO L752 eck$LassoCheckResult]: Stem: 3#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_~a~0#1, main_~b~0#1, main_~q~0#1, main_~olda~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~q~0#1;havoc main_~olda~0#1;main_~q~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 6#L23true assume !!(-524287 <= main_~q~0#1 && main_~q~0#1 <= 524287); 9#L24true assume !!(-524287 <= main_~a~0#1 && main_~a~0#1 <= 524287); 5#L25true assume !!(-524287 <= main_~b~0#1 && main_~b~0#1 <= 524287); 4#L26-2true [2022-07-13 03:04:58,570 INFO L754 eck$LassoCheckResult]: Loop: 4#L26-2true assume !!(main_~q~0#1 > 0);main_~q~0#1 := main_~q~0#1 + main_~a~0#1 - 1;main_~olda~0#1 := main_~a~0#1;main_~a~0#1 := 3 * main_~olda~0#1 - 4 * main_~b~0#1;main_~b~0#1 := 4 * main_~olda~0#1 + 3 * main_~b~0#1; 4#L26-2true [2022-07-13 03:04:58,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:04:58,575 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2022-07-13 03:04:58,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:04:58,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114272755] [2022-07-13 03:04:58,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:04:58,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:04:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:04:58,658 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:04:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:04:58,685 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:04:58,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:04:58,695 INFO L85 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2022-07-13 03:04:58,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:04:58,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806183801] [2022-07-13 03:04:58,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:04:58,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:04:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:04:58,714 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:04:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:04:58,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:04:58,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:04:58,722 INFO L85 PathProgramCache]: Analyzing trace with hash 889571345, now seen corresponding path program 1 times [2022-07-13 03:04:58,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:04:58,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029853196] [2022-07-13 03:04:58,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:04:58,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:04:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:04:58,732 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:04:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:04:58,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:04:58,842 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:04:58,843 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:04:58,843 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:04:58,844 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:04:58,844 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:04:58,844 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:04:58,844 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:04:58,844 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:04:58,844 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4NestedWith3Variables-1.c_Iteration1_Loop [2022-07-13 03:04:58,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:04:58,845 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:04:58,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:04:58,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:04:58,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:04:58,955 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:04:58,956 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:04:58,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:04:58,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:04:58,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:04:58,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-13 03:04:58,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:04:58,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:04:58,989 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:04:58,989 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:04:59,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-13 03:04:59,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:04:59,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:04:59,010 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:04:59,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:04:59,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:04:59,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-13 03:04:59,044 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:04:59,044 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:04:59,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-13 03:04:59,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:04:59,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:04:59,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:04:59,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-13 03:04:59,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:04:59,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:04:59,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-13 03:04:59,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:04:59,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:04:59,139 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:04:59,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-13 03:04:59,188 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:04:59,188 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:05:11,248 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-07-13 03:05:11,256 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 [2022-07-13 03:05:11,256 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:05:11,256 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:05:11,256 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:05:11,256 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:05:11,256 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:05:11,256 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,256 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:05:11,256 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:05:11,256 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4NestedWith3Variables-1.c_Iteration1_Loop [2022-07-13 03:05:11,256 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:05:11,256 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:05:11,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:11,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:11,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:05:11,352 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:05:11,355 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:05:11,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:11,357 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:11,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-13 03:05:11,360 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:11,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:11,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:11,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:11,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:05:11,370 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:05:11,370 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:05:11,386 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:11,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:11,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:11,406 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:11,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-13 03:05:11,408 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:11,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:11,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:11,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:11,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:05:11,418 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:05:11,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:05:11,431 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:11,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:11,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:11,450 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:11,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-13 03:05:11,453 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:11,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:11,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:05:11,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:11,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:11,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:05:11,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:05:11,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:05:11,477 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:11,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:11,497 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-07-13 03:05:11,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:11,498 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:11,504 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:11,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:11,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:11,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:11,510 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-07-13 03:05:11,513 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2022-07-13 03:05:11,513 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2022-07-13 03:05:11,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-13 03:05:11,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:11,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:11,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:11,548 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:11,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-13 03:05:11,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:11,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:11,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:11,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:11,557 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-07-13 03:05:11,560 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2022-07-13 03:05:11,560 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2022-07-13 03:05:11,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:11,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:11,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:11,613 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:11,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-13 03:05:11,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:11,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:11,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:05:11,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:11,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:11,660 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-07-13 03:05:11,663 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-07-13 03:05:11,663 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:05:11,672 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:11,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:11,689 INFO L490 LassoAnalysis]: Using template '3-nested'. [2022-07-13 03:05:11,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:11,690 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:11,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-13 03:05:11,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:11,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:11,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:11,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:11,710 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-07-13 03:05:11,713 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2022-07-13 03:05:11,713 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-07-13 03:05:11,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:11,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:11,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:11,759 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:11,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-13 03:05:11,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:11,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:11,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:11,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:11,768 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-07-13 03:05:11,771 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2022-07-13 03:05:11,771 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-07-13 03:05:11,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:11,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:11,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:11,805 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:11,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-13 03:05:11,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:11,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:11,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:05:11,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:11,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:11,816 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-07-13 03:05:11,819 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-13 03:05:11,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:05:11,831 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:11,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:11,850 INFO L490 LassoAnalysis]: Using template '4-nested'. [2022-07-13 03:05:11,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:11,851 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:11,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-13 03:05:11,853 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:11,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:11,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:11,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:11,859 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-07-13 03:05:11,863 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2022-07-13 03:05:11,864 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2022-07-13 03:05:11,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:11,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:11,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:11,898 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:11,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-13 03:05:11,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:11,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:11,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:11,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:11,909 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-07-13 03:05:11,918 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2022-07-13 03:05:11,918 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2022-07-13 03:05:11,937 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:05:11,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-07-13 03:05:11,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:11,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:11,956 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:11,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-13 03:05:11,958 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:05:11,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:05:11,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:05:11,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:05:11,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:05:11,965 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-07-13 03:05:11,968 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-07-13 03:05:11,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:05:11,984 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:05:12,018 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2022-07-13 03:05:12,018 INFO L444 ModelExtractionUtils]: 8 out of 21 variables were initially zero. Simplification set additionally 4 variables to zero. [2022-07-13 03:05:12,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:05:12,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:05:12,052 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:05:12,060 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:05:12,060 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:05:12,060 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:05:12,060 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 4-nested ranking function: f0 = -8*ULTIMATE.start_main_~a~0#1 + 80*ULTIMATE.start_main_~q~0#1 - 16*ULTIMATE.start_main_~b~0#1 f1 = 2*ULTIMATE.start_main_~a~0#1 + 4*ULTIMATE.start_main_~q~0#1 - 4*ULTIMATE.start_main_~b~0#1 f2 = 1*ULTIMATE.start_main_~a~0#1 f3 = 1*ULTIMATE.start_main_~q~0#1 Supporting invariants [] [2022-07-13 03:05:12,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-13 03:05:12,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:12,085 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:05:12,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:05:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:05:12,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:05:12,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:05:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:05:12,134 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 03:05:12,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:05:12,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:05:12,154 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-13 03:05:12,154 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:05:12,178 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 22 states and 27 transitions. Complement of second has 5 states. [2022-07-13 03:05:12,179 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 [2022-07-13 03:05:12,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:05:12,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-07-13 03:05:12,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 1 letters. [2022-07-13 03:05:12,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:05:12,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 1 letters. [2022-07-13 03:05:12,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:05:12,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-13 03:05:12,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:05:12,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2022-07-13 03:05:12,186 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:05:12,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2022-07-13 03:05:12,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-13 03:05:12,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-13 03:05:12,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-13 03:05:12,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:05:12,189 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:05:12,189 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:05:12,189 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:05:12,189 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:05:12,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-13 03:05:12,189 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:05:12,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-13 03:05:12,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:05:12 BoogieIcfgContainer [2022-07-13 03:05:12,199 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:05:12,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:05:12,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:05:12,199 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:05:12,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:04:58" (3/4) ... [2022-07-13 03:05:12,201 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 03:05:12,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:05:12,202 INFO L158 Benchmark]: Toolchain (without parser) took 14082.17ms. Allocated memory is still 132.1MB. Free memory was 97.8MB in the beginning and 69.6MB in the end (delta: 28.2MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2022-07-13 03:05:12,202 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 88.1MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:05:12,202 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.20ms. Allocated memory is still 132.1MB. Free memory was 97.8MB in the beginning and 108.0MB in the end (delta: -10.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2022-07-13 03:05:12,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.82ms. Allocated memory is still 132.1MB. Free memory was 108.0MB in the beginning and 106.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:05:12,203 INFO L158 Benchmark]: Boogie Preprocessor took 17.99ms. Allocated memory is still 132.1MB. Free memory was 106.5MB in the beginning and 105.6MB in the end (delta: 930.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:05:12,203 INFO L158 Benchmark]: RCFGBuilder took 167.18ms. Allocated memory is still 132.1MB. Free memory was 105.6MB in the beginning and 97.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:05:12,204 INFO L158 Benchmark]: BuchiAutomizer took 13698.68ms. Allocated memory is still 132.1MB. Free memory was 97.2MB in the beginning and 70.3MB in the end (delta: 26.9MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2022-07-13 03:05:12,204 INFO L158 Benchmark]: Witness Printer took 2.30ms. Allocated memory is still 132.1MB. Free memory was 70.3MB in the beginning and 69.6MB in the end (delta: 687.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:05:12,206 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 88.1MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 163.20ms. Allocated memory is still 132.1MB. Free memory was 97.8MB in the beginning and 108.0MB in the end (delta: -10.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.82ms. Allocated memory is still 132.1MB. Free memory was 108.0MB in the beginning and 106.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.99ms. Allocated memory is still 132.1MB. Free memory was 106.5MB in the beginning and 105.6MB in the end (delta: 930.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 167.18ms. Allocated memory is still 132.1MB. Free memory was 105.6MB in the beginning and 97.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 13698.68ms. Allocated memory is still 132.1MB. Free memory was 97.2MB in the beginning and 70.3MB in the end (delta: 26.9MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * Witness Printer took 2.30ms. Allocated memory is still 132.1MB. Free memory was 70.3MB in the beginning and 69.6MB in the end (delta: 687.6kB). 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 4-nested ranking function (if -16 * b + -8 * a + 80 * q > 0 then 3 else (if 4 * q + -4 * b + 2 * a > 0 then 2 else (if a > 0 then 1 else 0))), (if -16 * b + -8 * a + 80 * q > 0 then -16 * b + -8 * a + 80 * q else (if 4 * q + -4 * b + 2 * a > 0 then 4 * q + -4 * b + 2 * a else (if a > 0 then a else q))) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 13.5s. 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 -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, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 16 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, 13 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax137 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq196 hnf93 smp100 dnf100 smp100 tf103 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 5 MotzkinApplications: 15 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-13 03:05:12,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-13 03:05:12,446 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