./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/b.15.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-restricted-15/b.15.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 d693c7724c0ebfe8b27134a216c04efa168e4ab88e5a919a5ed127ebb533f08a --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 23:16:51,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 23:16:51,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 23:16:51,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 23:16:51,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 23:16:51,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 23:16:51,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 23:16:51,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 23:16:51,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 23:16:51,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 23:16:51,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 23:16:51,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 23:16:51,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 23:16:51,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 23:16:51,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 23:16:51,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 23:16:51,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 23:16:51,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 23:16:51,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 23:16:51,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 23:16:51,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 23:16:51,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 23:16:51,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 23:16:51,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 23:16:51,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 23:16:51,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 23:16:51,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 23:16:51,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 23:16:51,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 23:16:51,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 23:16:51,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 23:16:51,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 23:16:51,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 23:16:51,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 23:16:51,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 23:16:51,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 23:16:51,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 23:16:51,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 23:16:51,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 23:16:51,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 23:16:51,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 23:16:51,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 23:16:51,491 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 23:16:51,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 23:16:51,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 23:16:51,492 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 23:16:51,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 23:16:51,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 23:16:51,493 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 23:16:51,493 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 23:16:51,493 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 23:16:51,494 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 23:16:51,494 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 23:16:51,494 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 23:16:51,494 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 23:16:51,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 23:16:51,495 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 23:16:51,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 23:16:51,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 23:16:51,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 23:16:51,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 23:16:51,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 23:16:51,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 23:16:51,496 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 23:16:51,496 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 23:16:51,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 23:16:51,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 23:16:51,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 23:16:51,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 23:16:51,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 23:16:51,497 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 23:16:51,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d693c7724c0ebfe8b27134a216c04efa168e4ab88e5a919a5ed127ebb533f08a [2023-02-15 23:16:51,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 23:16:51,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 23:16:51,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 23:16:51,716 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 23:16:51,717 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 23:16:51,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.15.c [2023-02-15 23:16:52,674 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 23:16:52,813 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 23:16:52,813 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.15.c [2023-02-15 23:16:52,817 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/459b290c3/c8bb9356a40c46a6a84b3a8b3be78f72/FLAGe3d39b2b9 [2023-02-15 23:16:52,838 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/459b290c3/c8bb9356a40c46a6a84b3a8b3be78f72 [2023-02-15 23:16:52,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 23:16:52,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 23:16:52,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 23:16:52,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 23:16:52,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 23:16:52,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:16:52" (1/1) ... [2023-02-15 23:16:52,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e5227c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:52, skipping insertion in model container [2023-02-15 23:16:52,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:16:52" (1/1) ... [2023-02-15 23:16:52,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 23:16:52,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 23:16:52,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 23:16:52,953 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 23:16:52,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 23:16:52,968 INFO L208 MainTranslator]: Completed translation [2023-02-15 23:16:52,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:52 WrapperNode [2023-02-15 23:16:52,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 23:16:52,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 23:16:52,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 23:16:52,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 23:16:52,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:52" (1/1) ... [2023-02-15 23:16:52,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:52" (1/1) ... [2023-02-15 23:16:52,986 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-02-15 23:16:52,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 23:16:52,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 23:16:52,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 23:16:52,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 23:16:52,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:52" (1/1) ... [2023-02-15 23:16:52,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:52" (1/1) ... [2023-02-15 23:16:52,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:52" (1/1) ... [2023-02-15 23:16:52,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:52" (1/1) ... [2023-02-15 23:16:52,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:52" (1/1) ... [2023-02-15 23:16:52,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:52" (1/1) ... [2023-02-15 23:16:52,997 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:52" (1/1) ... [2023-02-15 23:16:52,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:52" (1/1) ... [2023-02-15 23:16:52,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 23:16:52,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 23:16:52,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 23:16:52,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 23:16:53,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:52" (1/1) ... [2023-02-15 23:16:53,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:53,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:53,058 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 23:16:53,060 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 23:16:53,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 23:16:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 23:16:53,130 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 23:16:53,132 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 23:16:53,176 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 23:16:53,179 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 23:16:53,180 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 23:16:53,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:16:53 BoogieIcfgContainer [2023-02-15 23:16:53,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 23:16:53,182 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 23:16:53,182 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 23:16:53,184 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 23:16:53,184 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 23:16:53,185 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 11:16:52" (1/3) ... [2023-02-15 23:16:53,185 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c1c199f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 11:16:53, skipping insertion in model container [2023-02-15 23:16:53,185 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 23:16:53,185 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:52" (2/3) ... [2023-02-15 23:16:53,186 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c1c199f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 11:16:53, skipping insertion in model container [2023-02-15 23:16:53,186 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 23:16:53,186 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:16:53" (3/3) ... [2023-02-15 23:16:53,187 INFO L332 chiAutomizerObserver]: Analyzing ICFG b.15.c [2023-02-15 23:16:53,223 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 23:16:53,223 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 23:16:53,223 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 23:16:53,223 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 23:16:53,224 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 23:16:53,224 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 23:16:53,224 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 23:16:53,224 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 23:16:53,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:16:53,235 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 23:16:53,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 23:16:53,236 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 23:16:53,239 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 23:16:53,239 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 23:16:53,239 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 23:16:53,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:16:53,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 23:16:53,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 23:16:53,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 23:16:53,240 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 23:16:53,240 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 23:16:53,245 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 7#L13-3true [2023-02-15 23:16:53,245 INFO L750 eck$LassoCheckResult]: Loop: 7#L13-3true assume !!(main_~x~0#1 == main_~y~0#1 && main_~x~0#1 > main_~z~0#1); 5#L13-2true assume !(main_~y~0#1 > main_~z~0#1); 7#L13-3true [2023-02-15 23:16:53,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:16:53,249 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-15 23:16:53,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:16:53,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703257192] [2023-02-15 23:16:53,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:16:53,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:16:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:16:53,300 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:16:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:16:53,311 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:16:53,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:16:53,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2023-02-15 23:16:53,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:16:53,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32731911] [2023-02-15 23:16:53,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:16:53,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:16:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:16:53,371 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 23:16:53,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 23:16:53,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32731911] [2023-02-15 23:16:53,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32731911] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 23:16:53,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 23:16:53,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-15 23:16:53,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387317995] [2023-02-15 23:16:53,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 23:16:53,380 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-15 23:16:53,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 23:16:53,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 23:16:53,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 23:16:53,410 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-02-15 23:16:53,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 23:16:53,424 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2023-02-15 23:16:53,425 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2023-02-15 23:16:53,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-15 23:16:53,439 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2023-02-15 23:16:53,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-15 23:16:53,440 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-15 23:16:53,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2023-02-15 23:16:53,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 23:16:53,440 INFO L218 hiAutomatonCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-15 23:16:53,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2023-02-15 23:16:53,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2023-02-15 23:16:53,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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) [2023-02-15 23:16:53,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2023-02-15 23:16:53,468 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-15 23:16:53,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 23:16:53,473 INFO L428 stractBuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-15 23:16:53,473 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 23:16:53,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2023-02-15 23:16:53,474 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-15 23:16:53,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 23:16:53,474 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 23:16:53,474 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 23:16:53,475 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-15 23:16:53,475 INFO L748 eck$LassoCheckResult]: Stem: 28#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 29#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 30#L13-3 [2023-02-15 23:16:53,475 INFO L750 eck$LassoCheckResult]: Loop: 30#L13-3 assume !!(main_~x~0#1 == main_~y~0#1 && main_~x~0#1 > main_~z~0#1); 26#L13-2 assume !!(main_~y~0#1 > main_~z~0#1);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 27#L13-2 assume !(main_~y~0#1 > main_~z~0#1); 30#L13-3 [2023-02-15 23:16:53,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:16:53,476 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-02-15 23:16:53,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:16:53,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407050496] [2023-02-15 23:16:53,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:16:53,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:16:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:16:53,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:16:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:16:53,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:16:53,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:16:53,495 INFO L85 PathProgramCache]: Analyzing trace with hash 41000, now seen corresponding path program 1 times [2023-02-15 23:16:53,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:16:53,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828411655] [2023-02-15 23:16:53,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:16:53,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:16:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:16:53,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:16:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:16:53,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:16:53,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:16:53,526 INFO L85 PathProgramCache]: Analyzing trace with hash 28699942, now seen corresponding path program 1 times [2023-02-15 23:16:53,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:16:53,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463230726] [2023-02-15 23:16:53,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:16:53,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:16:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:16:53,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:16:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:16:53,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:16:53,598 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:16:53,599 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:16:53,599 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:16:53,599 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:16:53,599 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 23:16:53,599 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:53,600 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:16:53,600 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:16:53,600 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.15.c_Iteration2_Loop [2023-02-15 23:16:53,600 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:16:53,600 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:16:53,611 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 23:16:53,626 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 23:16:53,629 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 23:16:53,691 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:16:53,692 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 23:16:53,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:53,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:53,696 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 23:16:53,697 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 23:16:53,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:16:53,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:16:53,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-02-15 23:16:53,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:53,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:53,737 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 23:16:53,739 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 23:16:53,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 23:16:53,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:16:53,990 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 23:16:53,994 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 23:16:53,995 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:16:53,995 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:16:53,995 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:16:53,995 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:16:53,995 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 23:16:53,995 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:53,995 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:16:53,995 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:16:53,995 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.15.c_Iteration2_Loop [2023-02-15 23:16:53,995 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:16:53,995 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:16:53,997 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 23:16:54,009 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 23:16:54,012 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 23:16:54,062 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:16:54,065 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 23:16:54,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:54,067 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 23:16:54,075 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 23:16:54,082 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 23:16:54,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:16:54,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:16:54,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:16:54,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:16:54,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:16:54,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:16:54,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:16:54,101 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 23:16:54,107 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-15 23:16:54,107 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 23:16:54,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:54,111 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 23:16:54,114 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 23:16:54,115 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 23:16:54,115 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 23:16:54,116 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 23:16:54,116 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2023-02-15 23:16:54,119 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 23:16:54,122 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 23:16:54,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:16:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:16:54,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 23:16:54,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:16:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:16:54,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 23:16:54,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:16:54,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:16:54,229 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 23:16:54,230 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:16:54,260 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 18 transitions. Complement of second has 6 states. [2023-02-15 23:16:54,261 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 23:16:54,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:16:54,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-02-15 23:16:54,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-15 23:16:54,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:16:54,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-15 23:16:54,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:16:54,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-15 23:16:54,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:16:54,266 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2023-02-15 23:16:54,268 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 23:16:54,269 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 12 transitions. [2023-02-15 23:16:54,269 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-15 23:16:54,269 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-15 23:16:54,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-02-15 23:16:54,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 23:16:54,269 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-15 23:16:54,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-02-15 23:16:54,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-02-15 23:16:54,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:16:54,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-15 23:16:54,272 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-15 23:16:54,272 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-15 23:16:54,272 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-15 23:16:54,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-02-15 23:16:54,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 23:16:54,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 23:16:54,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 23:16:54,273 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2023-02-15 23:16:54,274 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 23:16:54,274 INFO L748 eck$LassoCheckResult]: Stem: 87#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 88#L-1 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_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 85#L13-3 assume !!(main_~x~0#1 == main_~y~0#1 && main_~x~0#1 > main_~z~0#1); 83#L13-2 assume !!(main_~y~0#1 > main_~z~0#1);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 84#L13-2 assume !!(main_~y~0#1 > main_~z~0#1);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 82#L13-2 [2023-02-15 23:16:54,274 INFO L750 eck$LassoCheckResult]: Loop: 82#L13-2 assume !!(main_~y~0#1 > main_~z~0#1);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 82#L13-2 [2023-02-15 23:16:54,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:16:54,279 INFO L85 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 1 times [2023-02-15 23:16:54,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:16:54,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826525651] [2023-02-15 23:16:54,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:16:54,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:16:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:16:54,293 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:16:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:16:54,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:16:54,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:16:54,304 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2023-02-15 23:16:54,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:16:54,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337670478] [2023-02-15 23:16:54,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:16:54,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:16:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:16:54,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:16:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:16:54,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:16:54,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:16:54,309 INFO L85 PathProgramCache]: Analyzing trace with hash 889698284, now seen corresponding path program 2 times [2023-02-15 23:16:54,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:16:54,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363253403] [2023-02-15 23:16:54,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:16:54,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:16:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:16:54,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:16:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:16:54,335 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:16:54,351 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:16:54,351 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:16:54,351 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:16:54,351 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:16:54,351 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 23:16:54,351 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,351 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:16:54,351 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:16:54,352 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.15.c_Iteration3_Loop [2023-02-15 23:16:54,352 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:16:54,352 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:16:54,353 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 23:16:54,355 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 23:16:54,356 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 23:16:54,359 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 23:16:54,388 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:16:54,388 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 23:16:54,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:54,389 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 23:16:54,392 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 23:16:54,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:16:54,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:16:54,415 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 23:16:54,416 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 23:16:54,421 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 23:16:54,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:54,423 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 23:16:54,434 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 23:16:54,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:16:54,436 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:16:54,447 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 23:16:54,447 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 23:16:54,453 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 23:16:54,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:54,454 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 23:16:54,455 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 23:16:54,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:16:54,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:16:54,475 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 23:16:54,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:54,477 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 23:16:54,478 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 23:16:54,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 23:16:54,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:16:54,498 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 23:16:54,498 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=5}, {ULTIMATE.start_main_~x~0#1=-6}] Lambdas: [7, 1, 1] Nus: [0, 0] [2023-02-15 23:16:54,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-15 23:16:54,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:54,502 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 23:16:54,503 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 23:16:54,505 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:16:54,505 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:16:54,521 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 23:16:54,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:54,523 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) [2023-02-15 23:16:54,524 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 [2023-02-15 23:16:54,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 23:16:54,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:16:54,677 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 23:16:54,681 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 [2023-02-15 23:16:54,681 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:16:54,681 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:16:54,681 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:16:54,681 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:16:54,681 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 23:16:54,681 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,681 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:16:54,681 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:16:54,681 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.15.c_Iteration3_Loop [2023-02-15 23:16:54,681 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:16:54,681 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:16:54,682 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 23:16:54,691 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 23:16:54,694 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 23:16:54,696 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 23:16:54,736 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:16:54,737 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 23:16:54,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:54,738 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) [2023-02-15 23:16:54,741 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 [2023-02-15 23:16:54,743 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 23:16:54,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:16:54,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:16:54,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:16:54,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:16:54,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 23:16:54,755 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 23:16:54,781 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:16:54,786 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 [2023-02-15 23:16:54,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:54,788 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) [2023-02-15 23:16:54,790 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 [2023-02-15 23:16:54,792 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 23:16:54,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:16:54,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:16:54,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:16:54,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:16:54,804 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 23:16:54,804 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 23:16:54,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:16:54,835 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 [2023-02-15 23:16:54,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:54,836 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) [2023-02-15 23:16:54,838 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 [2023-02-15 23:16:54,841 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 23:16:54,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:16:54,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:16:54,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:16:54,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:16:54,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:16:54,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:16:54,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:16:54,863 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:16:54,884 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 [2023-02-15 23:16:54,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:54,886 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) [2023-02-15 23:16:54,888 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 [2023-02-15 23:16:54,890 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 23:16:54,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:16:54,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:16:54,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:16:54,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:16:54,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:16:54,898 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:16:54,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:16:54,903 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 23:16:54,906 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-15 23:16:54,906 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 23:16:54,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:16:54,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:16:54,907 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) [2023-02-15 23:16:54,908 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 [2023-02-15 23:16:54,909 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 23:16:54,910 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 23:16:54,910 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 23:16:54,910 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2023-02-15 23:16:54,915 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 [2023-02-15 23:16:54,916 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 23:16:54,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:16:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:16:54,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 23:16:54,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:16:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:16:54,969 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 23:16:54,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:16:54,970 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 23:16:54,970 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-15 23:16:54,971 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 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) [2023-02-15 23:16:54,980 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 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 12 states and 16 transitions. Complement of second has 4 states. [2023-02-15 23:16:54,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-15 23:16:54,981 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) [2023-02-15 23:16:54,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-02-15 23:16:54,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-15 23:16:54,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:16:54,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 1 letters. [2023-02-15 23:16:54,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:16:54,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-15 23:16:54,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:16:54,983 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 16 transitions. [2023-02-15 23:16:54,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-15 23:16:54,991 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 23:16:54,991 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2023-02-15 23:16:54,991 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-15 23:16:54,991 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-15 23:16:54,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-15 23:16:54,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 23:16:54,991 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 23:16:54,991 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 23:16:54,991 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 23:16:54,991 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-15 23:16:54,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-15 23:16:54,991 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 23:16:54,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-15 23:16:54,992 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 23:16:55,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.02 11:16:54 BoogieIcfgContainer [2023-02-15 23:16:55,000 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-15 23:16:55,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 23:16:55,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 23:16:55,001 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 23:16:55,001 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:16:53" (3/4) ... [2023-02-15 23:16:55,004 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 23:16:55,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 23:16:55,005 INFO L158 Benchmark]: Toolchain (without parser) took 2163.14ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 89.8MB in the beginning and 127.9MB in the end (delta: -38.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 23:16:55,005 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 23:16:55,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 127.09ms. Allocated memory is still 134.2MB. Free memory was 89.5MB in the beginning and 80.7MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 23:16:55,006 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.65ms. Allocated memory is still 134.2MB. Free memory was 80.7MB in the beginning and 79.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 23:16:55,006 INFO L158 Benchmark]: Boogie Preprocessor took 11.72ms. Allocated memory is still 134.2MB. Free memory was 79.4MB in the beginning and 78.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 23:16:55,006 INFO L158 Benchmark]: RCFGBuilder took 182.07ms. Allocated memory is still 134.2MB. Free memory was 78.3MB in the beginning and 69.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 23:16:55,007 INFO L158 Benchmark]: BuchiAutomizer took 1818.65ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 69.6MB in the beginning and 128.3MB in the end (delta: -58.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 23:16:55,007 INFO L158 Benchmark]: Witness Printer took 3.36ms. Allocated memory is still 161.5MB. Free memory was 128.3MB in the beginning and 127.9MB in the end (delta: 347.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 23:16:55,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 127.09ms. Allocated memory is still 134.2MB. Free memory was 89.5MB in the beginning and 80.7MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.65ms. Allocated memory is still 134.2MB. Free memory was 80.7MB in the beginning and 79.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.72ms. Allocated memory is still 134.2MB. Free memory was 79.4MB in the beginning and 78.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 182.07ms. Allocated memory is still 134.2MB. Free memory was 78.3MB in the beginning and 69.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1818.65ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 69.6MB in the beginning and 128.3MB in the end (delta: -58.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.36ms. Allocated memory is still 161.5MB. Free memory was 128.3MB in the beginning and 127.9MB in the end (delta: 347.0kB). 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * z and consists of 4 locations. One deterministic module has affine ranking function y + -1 * z and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 14 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax167 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf92 smp92 dnf100 smp100 tf110 neg98 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s 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 23:16:55,024 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