./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/java_Sequence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a31fd051 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/java_Sequence.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 4c7fd2dfb73ccf40686976b843bd7f2e1f45b17323a2ffa706fb90cccb1bab75 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 14:17:07,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 14:17:07,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 14:17:07,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 14:17:07,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 14:17:07,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 14:17:07,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 14:17:07,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 14:17:07,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 14:17:07,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 14:17:07,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 14:17:07,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 14:17:07,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 14:17:07,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 14:17:07,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 14:17:07,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 14:17:07,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 14:17:07,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 14:17:07,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 14:17:07,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 14:17:07,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 14:17:07,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 14:17:07,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 14:17:07,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 14:17:07,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 14:17:07,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 14:17:07,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 14:17:07,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 14:17:07,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 14:17:07,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 14:17:07,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 14:17:07,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 14:17:07,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 14:17:07,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 14:17:07,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 14:17:07,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 14:17:07,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 14:17:07,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 14:17:07,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 14:17:07,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 14:17:07,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 14:17:07,408 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 14:17:07,439 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 14:17:07,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 14:17:07,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 14:17:07,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 14:17:07,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 14:17:07,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 14:17:07,442 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 14:17:07,442 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 14:17:07,442 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 14:17:07,442 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 14:17:07,443 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 14:17:07,443 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 14:17:07,444 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 14:17:07,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 14:17:07,444 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 14:17:07,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 14:17:07,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 14:17:07,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 14:17:07,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 14:17:07,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 14:17:07,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 14:17:07,445 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 14:17:07,445 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 14:17:07,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 14:17:07,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 14:17:07,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 14:17:07,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 14:17:07,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 14:17:07,448 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 14:17:07,448 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c7fd2dfb73ccf40686976b843bd7f2e1f45b17323a2ffa706fb90cccb1bab75 [2023-02-15 14:17:07,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 14:17:07,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 14:17:07,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 14:17:07,713 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 14:17:07,714 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 14:17:07,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2023-02-15 14:17:08,912 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 14:17:09,113 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 14:17:09,113 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2023-02-15 14:17:09,119 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9694cc331/b31c395c9abb4001a3c6b7ad70752b1f/FLAG7b3057455 [2023-02-15 14:17:09,137 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9694cc331/b31c395c9abb4001a3c6b7ad70752b1f [2023-02-15 14:17:09,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 14:17:09,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 14:17:09,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 14:17:09,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 14:17:09,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 14:17:09,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:17:09" (1/1) ... [2023-02-15 14:17:09,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@265b84b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:09, skipping insertion in model container [2023-02-15 14:17:09,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:17:09" (1/1) ... [2023-02-15 14:17:09,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 14:17:09,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 14:17:09,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:17:09,294 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 14:17:09,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:17:09,313 INFO L208 MainTranslator]: Completed translation [2023-02-15 14:17:09,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:09 WrapperNode [2023-02-15 14:17:09,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 14:17:09,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 14:17:09,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 14:17:09,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 14:17:09,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:09" (1/1) ... [2023-02-15 14:17:09,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:09" (1/1) ... [2023-02-15 14:17:09,336 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2023-02-15 14:17:09,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 14:17:09,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 14:17:09,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 14:17:09,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 14:17:09,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:09" (1/1) ... [2023-02-15 14:17:09,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:09" (1/1) ... [2023-02-15 14:17:09,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:09" (1/1) ... [2023-02-15 14:17:09,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:09" (1/1) ... [2023-02-15 14:17:09,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:09" (1/1) ... [2023-02-15 14:17:09,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:09" (1/1) ... [2023-02-15 14:17:09,350 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:09" (1/1) ... [2023-02-15 14:17:09,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:09" (1/1) ... [2023-02-15 14:17:09,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 14:17:09,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 14:17:09,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 14:17:09,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 14:17:09,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:09" (1/1) ... [2023-02-15 14:17:09,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:09,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:09,377 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 14:17:09,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-15 14:17:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 14:17:09,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 14:17:09,474 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 14:17:09,475 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 14:17:09,549 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 14:17:09,555 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 14:17:09,555 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 14:17:09,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:17:09 BoogieIcfgContainer [2023-02-15 14:17:09,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 14:17:09,559 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 14:17:09,559 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 14:17:09,563 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 14:17:09,563 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:17:09,564 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 02:17:09" (1/3) ... [2023-02-15 14:17:09,565 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@712768de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:17:09, skipping insertion in model container [2023-02-15 14:17:09,565 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:17:09,565 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:17:09" (2/3) ... [2023-02-15 14:17:09,566 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@712768de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:17:09, skipping insertion in model container [2023-02-15 14:17:09,566 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:17:09,566 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:17:09" (3/3) ... [2023-02-15 14:17:09,567 INFO L332 chiAutomizerObserver]: Analyzing ICFG java_Sequence.c [2023-02-15 14:17:09,637 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 14:17:09,637 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 14:17:09,637 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 14:17:09,637 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 14:17:09,637 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 14:17:09,638 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 14:17:09,638 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 14:17:09,639 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 14:17:09,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:17:09,667 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-02-15 14:17:09,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:17:09,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:17:09,672 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 14:17:09,673 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 14:17:09,673 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 14:17:09,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:17:09,675 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-02-15 14:17:09,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:17:09,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:17:09,675 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 14:17:09,676 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 14:17:09,682 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 3#L10-2true [2023-02-15 14:17:09,683 INFO L750 eck$LassoCheckResult]: Loop: 3#L10-2true assume !!(main_~i~0#1 < 100);main_~c~0#1 := 1 + main_~c~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3#L10-2true [2023-02-15 14:17:09,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:09,690 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-15 14:17:09,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:09,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675950284] [2023-02-15 14:17:09,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:09,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:09,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:09,819 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:09,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:09,823 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-02-15 14:17:09,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:09,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080601492] [2023-02-15 14:17:09,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:09,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:09,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:09,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:09,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:09,881 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-15 14:17:09,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:09,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684429302] [2023-02-15 14:17:09,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:09,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:09,894 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:09,902 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:09,986 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:17:09,986 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:17:09,986 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:17:09,987 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:17:09,987 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 14:17:09,987 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:09,987 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:17:09,987 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:17:09,987 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2023-02-15 14:17:09,987 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:17:09,988 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:17:10,014 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 14:17:10,035 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 14:17:10,040 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 14:17:10,049 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 14:17:10,133 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:17:10,133 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 14:17:10,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:10,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:10,143 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 14:17:10,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:17:10,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:10,163 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 14:17:10,172 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:17:10,172 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 14:17:10,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-15 14:17:10,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:10,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:10,186 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 14:17:10,188 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 14:17:10,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:17:10,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:10,204 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:17:10,205 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 14:17:10,215 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 14:17:10,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:10,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:10,218 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 14:17:10,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:17:10,232 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:10,242 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 14:17:10,257 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 14:17:10,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:10,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:10,259 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 14:17:10,262 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 14:17:10,263 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 14:17:10,263 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:10,291 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:17:10,291 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=-8}, {ULTIMATE.start_main_~c~0#1=5}] Lambdas: [3, 1, 1] Nus: [1, 0] [2023-02-15 14:17:10,298 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 14:17:10,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:10,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:10,301 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 14:17:10,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:17:10,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:10,313 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 14:17:10,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-15 14:17:10,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:10,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:10,331 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 14:17:10,333 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 14:17:10,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 14:17:10,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:10,354 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 14:17:10,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-15 14:17:10,361 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:17:10,361 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:17:10,361 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:17:10,361 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:17:10,361 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 14:17:10,361 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:10,361 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:17:10,361 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:17:10,361 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2023-02-15 14:17:10,361 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:17:10,361 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:17:10,363 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 14:17:10,370 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 14:17:10,375 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 14:17:10,382 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 14:17:10,465 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:17:10,471 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 14:17:10,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:10,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:10,477 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 14:17:10,480 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 14:17:10,483 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 14:17:10,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:17:10,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:17:10,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:17:10,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:17:10,501 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:17:10,502 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:17:10,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:17:10,536 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 14:17:10,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:10,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:10,541 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 14:17:10,544 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 14:17:10,546 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 14:17:10,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:17:10,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:17:10,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:17:10,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:17:10,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:17:10,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:17:10,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:17:10,565 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:17:10,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-15 14:17:10,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:10,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:10,571 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 14:17:10,572 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 14:17:10,574 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 14:17:10,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:17:10,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:17:10,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:17:10,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:17:10,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:17:10,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:17:10,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:17:10,613 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 14:17:10,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:10,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:10,615 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 14:17:10,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-15 14:17:10,618 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 14:17:10,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:17:10,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:17:10,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:17:10,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:17:10,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:17:10,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:17:10,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:17:10,647 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 14:17:10,658 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 14:17:10,658 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-15 14:17:10,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:10,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:10,691 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 14:17:10,692 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 14:17:10,693 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 14:17:10,694 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 14:17:10,694 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 14:17:10,695 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 199 Supporting invariants [] [2023-02-15 14:17:10,700 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 14:17:10,704 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 14:17:10,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:10,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 14:17:10,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:10,747 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 14:17:10,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:10,748 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 14:17:10,775 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 14:17:10,777 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:17:10,807 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 30 transitions. Complement of second has 5 states. [2023-02-15 14:17:10,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-15 14:17:10,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:17:10,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-02-15 14:17:10,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 2 letters. Loop has 1 letters. [2023-02-15 14:17:10,820 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:10,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-15 14:17:10,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:10,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-15 14:17:10,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:10,822 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 30 transitions. [2023-02-15 14:17:10,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 14:17:10,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 6 states and 8 transitions. [2023-02-15 14:17:10,829 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-15 14:17:10,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-15 14:17:10,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2023-02-15 14:17:10,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:17:10,831 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-15 14:17:10,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2023-02-15 14:17:10,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-02-15 14:17:10,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:17:10,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2023-02-15 14:17:10,856 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-15 14:17:10,856 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-15 14:17:10,856 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 14:17:10,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2023-02-15 14:17:10,859 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 14:17:10,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:17:10,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:17:10,860 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-15 14:17:10,860 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 14:17:10,861 INFO L748 eck$LassoCheckResult]: Stem: 65#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 66#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 62#L10-2 assume !(main_~i~0#1 < 100); 63#L10-3 main_~j~0#1 := 5; 67#L15-2 [2023-02-15 14:17:10,861 INFO L750 eck$LassoCheckResult]: Loop: 67#L15-2 assume !!(main_~j~0#1 < 21);main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 3 + main_~j~0#1; 67#L15-2 [2023-02-15 14:17:10,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:10,862 INFO L85 PathProgramCache]: Analyzing trace with hash 925737, now seen corresponding path program 1 times [2023-02-15 14:17:10,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:10,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42616508] [2023-02-15 14:17:10,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:10,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:10,904 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 14:17:10,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:17:10,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42616508] [2023-02-15 14:17:10,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42616508] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:17:10,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:17:10,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:17:10,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994769393] [2023-02-15 14:17:10,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:17:10,907 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-15 14:17:10,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:10,907 INFO L85 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2023-02-15 14:17:10,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:10,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46327397] [2023-02-15 14:17:10,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:10,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:10,912 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:10,915 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:10,932 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:17:10,933 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:17:10,933 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:17:10,933 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:17:10,933 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 14:17:10,933 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:10,933 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:17:10,933 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:17:10,934 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2023-02-15 14:17:10,934 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:17:10,934 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:17:10,935 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 14:17:10,938 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 14:17:10,944 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 14:17:10,947 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 14:17:10,984 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:17:10,985 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 14:17:10,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:10,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:10,986 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 14:17:11,005 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 14:17:11,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:17:11,006 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:11,024 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:17:11,024 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 14:17:11,033 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 14:17:11,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:11,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:11,035 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 14:17:11,036 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 14:17:11,038 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:17:11,038 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:11,061 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 14:17:11,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:11,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:11,062 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 14:17:11,064 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 14:17:11,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 14:17:11,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:11,082 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 14:17:11,088 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 14:17:11,088 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:17:11,088 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:17:11,088 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:17:11,088 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:17:11,088 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 14:17:11,089 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:11,089 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:17:11,089 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:17:11,089 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2023-02-15 14:17:11,089 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:17:11,089 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:17:11,090 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 14:17:11,093 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 14:17:11,099 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 14:17:11,104 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 14:17:11,159 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 14:17:11,181 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:17:11,182 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 14:17:11,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:11,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:11,185 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 14:17:11,194 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 14:17:11,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:17:11,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:17:11,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:17:11,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:17:11,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:17:11,207 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:17:11,213 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 14:17:11,225 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:17:11,229 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 14:17:11,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:11,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:11,231 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:17:11,244 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 14:17:11,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:17:11,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:17:11,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:17:11,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:17:11,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:17:11,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-15 14:17:11,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:17:11,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:17:11,257 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 14:17:11,259 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 14:17:11,259 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-15 14:17:11,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:11,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:11,261 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:17:11,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-15 14:17:11,269 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 14:17:11,269 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 14:17:11,269 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 14:17:11,269 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 43 Supporting invariants [] [2023-02-15 14:17:11,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-15 14:17:11,274 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 14:17:11,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:11,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 14:17:11,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:11,300 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 14:17:11,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:11,300 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 14:17:11,301 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 14:17:11,301 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:17:11,306 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 7 states and 9 transitions. Complement of second has 2 states. [2023-02-15 14:17:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-02-15 14:17:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:17:11,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2023-02-15 14:17:11,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2023-02-15 14:17:11,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:11,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-15 14:17:11,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:11,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-15 14:17:11,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:11,309 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 9 transitions. [2023-02-15 14:17:11,309 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 14:17:11,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2023-02-15 14:17:11,309 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-15 14:17:11,310 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-15 14:17:11,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-15 14:17:11,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:17:11,310 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:17:11,310 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:17:11,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:17:11,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:17:11,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:17:11,313 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:17:11,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:17:11,315 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-02-15 14:17:11,316 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-02-15 14:17:11,316 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 14:17:11,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 14:17:11,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-15 14:17:11,316 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-15 14:17:11,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-15 14:17:11,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:17:11,316 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:17:11,316 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:17:11,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 14:17:11,317 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:17:11,317 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-15 14:17:11,317 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-15 14:17:11,318 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 14:17:11,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-15 14:17:11,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.02 02:17:11 BoogieIcfgContainer [2023-02-15 14:17:11,324 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-15 14:17:11,325 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 14:17:11,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 14:17:11,325 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 14:17:11,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:17:09" (3/4) ... [2023-02-15 14:17:11,328 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 14:17:11,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 14:17:11,329 INFO L158 Benchmark]: Toolchain (without parser) took 2187.05ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 89.0MB in the beginning and 135.5MB in the end (delta: -46.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:17:11,329 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory was 49.0MB in the beginning and 48.9MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:17:11,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.37ms. Allocated memory is still 132.1MB. Free memory was 89.0MB in the beginning and 79.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 14:17:11,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.61ms. Allocated memory is still 132.1MB. Free memory was 79.9MB in the beginning and 78.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:17:11,330 INFO L158 Benchmark]: Boogie Preprocessor took 13.85ms. Allocated memory is still 132.1MB. Free memory was 78.5MB in the beginning and 77.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:17:11,330 INFO L158 Benchmark]: RCFGBuilder took 205.55ms. Allocated memory is still 132.1MB. Free memory was 77.5MB in the beginning and 69.5MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 14:17:11,331 INFO L158 Benchmark]: BuchiAutomizer took 1765.67ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 69.1MB in the beginning and 136.6MB in the end (delta: -67.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:17:11,331 INFO L158 Benchmark]: Witness Printer took 3.03ms. Allocated memory is still 176.2MB. Free memory was 136.6MB in the beginning and 135.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:17:11,333 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory was 49.0MB in the beginning and 48.9MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.37ms. Allocated memory is still 132.1MB. Free memory was 89.0MB in the beginning and 79.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.61ms. Allocated memory is still 132.1MB. Free memory was 79.9MB in the beginning and 78.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.85ms. Allocated memory is still 132.1MB. Free memory was 78.5MB in the beginning and 77.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 205.55ms. Allocated memory is still 132.1MB. Free memory was 77.5MB in the beginning and 69.5MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1765.67ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 69.1MB in the beginning and 136.6MB in the end (delta: -67.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.03ms. Allocated memory is still 176.2MB. Free memory was 136.6MB in the beginning and 135.5MB in the end (delta: 1.0MB). 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 -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 13 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf100 smp100 dnf93 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 57ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s 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 14:17:11,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-02-15 14:17:11,551 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