./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 e19ca921 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-dev-e19ca92 [2021-12-22 19:49:10,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 19:49:10,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 19:49:10,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 19:49:10,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 19:49:10,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 19:49:10,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 19:49:10,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 19:49:10,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 19:49:10,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 19:49:10,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 19:49:10,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 19:49:10,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 19:49:10,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 19:49:10,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 19:49:10,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 19:49:10,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 19:49:10,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 19:49:10,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 19:49:10,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 19:49:10,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 19:49:10,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 19:49:10,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 19:49:10,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 19:49:10,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 19:49:10,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 19:49:10,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 19:49:10,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 19:49:10,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 19:49:10,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 19:49:10,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 19:49:10,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 19:49:10,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 19:49:10,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 19:49:10,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 19:49:10,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 19:49:10,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 19:49:10,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 19:49:10,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 19:49:10,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 19:49:10,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 19:49:10,499 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-22 19:49:10,516 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 19:49:10,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 19:49:10,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 19:49:10,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 19:49:10,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 19:49:10,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 19:49:10,517 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 19:49:10,518 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 19:49:10,518 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 19:49:10,518 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 19:49:10,518 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 19:49:10,518 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 19:49:10,518 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 19:49:10,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 19:49:10,519 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 19:49:10,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 19:49:10,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 19:49:10,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 19:49:10,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 19:49:10,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 19:49:10,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 19:49:10,520 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 19:49:10,520 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 19:49:10,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 19:49:10,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 19:49:10,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 19:49:10,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 19:49:10,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 19:49:10,521 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 19:49:10,522 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 19:49:10,522 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c7fd2dfb73ccf40686976b843bd7f2e1f45b17323a2ffa706fb90cccb1bab75 [2021-12-22 19:49:10,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 19:49:10,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 19:49:10,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 19:49:10,714 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 19:49:10,715 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 19:49:10,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2021-12-22 19:49:10,765 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5005d364a/ff60240871cd45098c5b69aebcdc6611/FLAG4c4915b03 [2021-12-22 19:49:11,130 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 19:49:11,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2021-12-22 19:49:11,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5005d364a/ff60240871cd45098c5b69aebcdc6611/FLAG4c4915b03 [2021-12-22 19:49:11,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5005d364a/ff60240871cd45098c5b69aebcdc6611 [2021-12-22 19:49:11,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 19:49:11,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 19:49:11,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 19:49:11,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 19:49:11,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 19:49:11,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:49:11" (1/1) ... [2021-12-22 19:49:11,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1512b917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:11, skipping insertion in model container [2021-12-22 19:49:11,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:49:11" (1/1) ... [2021-12-22 19:49:11,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 19:49:11,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 19:49:11,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 19:49:11,273 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 19:49:11,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 19:49:11,294 INFO L208 MainTranslator]: Completed translation [2021-12-22 19:49:11,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:11 WrapperNode [2021-12-22 19:49:11,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 19:49:11,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 19:49:11,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 19:49:11,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 19:49:11,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:11" (1/1) ... [2021-12-22 19:49:11,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:11" (1/1) ... [2021-12-22 19:49:11,316 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2021-12-22 19:49:11,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 19:49:11,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 19:49:11,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 19:49:11,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 19:49:11,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:11" (1/1) ... [2021-12-22 19:49:11,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:11" (1/1) ... [2021-12-22 19:49:11,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:11" (1/1) ... [2021-12-22 19:49:11,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:11" (1/1) ... [2021-12-22 19:49:11,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:11" (1/1) ... [2021-12-22 19:49:11,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:11" (1/1) ... [2021-12-22 19:49:11,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:11" (1/1) ... [2021-12-22 19:49:11,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 19:49:11,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 19:49:11,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 19:49:11,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 19:49:11,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:11" (1/1) ... [2021-12-22 19:49:11,334 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:11,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:49:11,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-22 19:49:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 19:49:11,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 19:49:11,424 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 19:49:11,426 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 19:49:11,492 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 19:49:11,497 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 19:49:11,497 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 19:49:11,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:49:11 BoogieIcfgContainer [2021-12-22 19:49:11,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 19:49:11,499 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 19:49:11,500 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 19:49:11,502 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 19:49:11,503 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:49:11,503 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 07:49:11" (1/3) ... [2021-12-22 19:49:11,503 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cb03f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 07:49:11, skipping insertion in model container [2021-12-22 19:49:11,504 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:49:11,504 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:49:11" (2/3) ... [2021-12-22 19:49:11,504 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cb03f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 07:49:11, skipping insertion in model container [2021-12-22 19:49:11,504 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:49:11,504 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:49:11" (3/3) ... [2021-12-22 19:49:11,505 INFO L388 chiAutomizerObserver]: Analyzing ICFG java_Sequence.c [2021-12-22 19:49:11,537 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 19:49:11,537 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 19:49:11,537 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 19:49:11,538 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 19:49:11,538 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 19:49:11,538 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 19:49:11,538 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 19:49:11,538 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 19:49:11,546 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) [2021-12-22 19:49:11,557 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-12-22 19:49:11,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:49:11,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:49:11,561 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-22 19:49:11,561 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-22 19:49:11,561 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 19:49:11,561 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) [2021-12-22 19:49:11,562 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-12-22 19:49:11,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:49:11,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:49:11,562 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-22 19:49:11,562 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-22 19:49:11,567 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue 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; 4#L10-2true [2021-12-22 19:49:11,568 INFO L793 eck$LassoCheckResult]: Loop: 4#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; 4#L10-2true [2021-12-22 19:49:11,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:49:11,572 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-22 19:49:11,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:49:11,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056280574] [2021-12-22 19:49:11,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:49:11,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:49:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:11,626 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:49:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:11,637 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:49:11,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:49:11,639 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-12-22 19:49:11,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:49:11,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628438234] [2021-12-22 19:49:11,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:49:11,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:49:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:11,647 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:49:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:11,650 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:49:11,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:49:11,652 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-12-22 19:49:11,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:49:11,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835083178] [2021-12-22 19:49:11,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:49:11,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:49:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:11,658 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:49:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:11,662 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:49:11,704 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:49:11,705 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:49:11,705 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:49:11,705 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:49:11,705 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-22 19:49:11,706 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,706 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:49:11,706 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:49:11,706 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2021-12-22 19:49:11,706 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:49:11,706 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:49:11,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:11,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:11,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:11,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:11,780 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:49:11,781 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-22 19:49:11,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:11,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:49:11,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-22 19:49:11,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 19:49:11,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:11,809 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 19:49:11,809 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 19:49:11,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-22 19:49:11,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:11,834 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:49:11,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-22 19:49:11,837 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 19:49:11,837 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:11,870 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 19:49:11,870 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 19:49:11,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-22 19:49:11,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:11,892 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:49:11,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-22 19:49:11,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 19:49:11,894 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:11,924 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 [2021-12-22 19:49:11,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:11,926 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:49:11,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-22 19:49:11,947 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:11,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-22 19:49:11,970 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 19:49:11,970 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=0}, {ULTIMATE.start_main_~c~0#1=2}, {ULTIMATE.start_main_~c~0#1=-1}] Lambdas: [6, 1, 1] Nus: [0, 0] [2021-12-22 19:49:11,988 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 [2021-12-22 19:49:11,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:11,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:11,991 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:49:12,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 19:49:12,004 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:12,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-22 19:49:12,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-22 19:49:12,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:12,046 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:49:12,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-22 19:49:12,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-22 19:49:12,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:12,079 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-22 19:49:12,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-22 19:49:12,085 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:49:12,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:49:12,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:49:12,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:49:12,085 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 19:49:12,085 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,085 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:49:12,085 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:49:12,085 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2021-12-22 19:49:12,085 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:49:12,085 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:49:12,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:12,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:12,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:12,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:12,146 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:49:12,149 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 19:49:12,150 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:12,152 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:49:12,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-22 19:49:12,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:49:12,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:49:12,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:49:12,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:49:12,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:49:12,165 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:49:12,165 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:49:12,176 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:49:12,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-22 19:49:12,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:12,195 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:49:12,208 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:49:12,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:49:12,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:49:12,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:49:12,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:49:12,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:49:12,217 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:49:12,217 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:49:12,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-22 19:49:12,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:49:12,247 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 [2021-12-22 19:49:12,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:12,248 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:49:12,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-22 19:49:12,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:49:12,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:49:12,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:49:12,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:49:12,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:49:12,260 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:49:12,260 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:49:12,275 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:49:12,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-22 19:49:12,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:12,292 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:49:12,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-22 19:49:12,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:49:12,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:49:12,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:49:12,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:49:12,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:49:12,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:49:12,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:49:12,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:49:12,317 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 19:49:12,320 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-22 19:49:12,320 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-22 19:49:12,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:12,322 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) [2021-12-22 19:49:12,323 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 [2021-12-22 19:49:12,324 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 19:49:12,324 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-22 19:49:12,324 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 19:49:12,325 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 [] [2021-12-22 19:49:12,342 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 [2021-12-22 19:49:12,345 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-22 19:49:12,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:49:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:49:12,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:49:12,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:49:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:49:12,379 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 19:49:12,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:49:12,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:49:12,400 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-22 19:49:12,401 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) [2021-12-22 19:49:12,422 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. [2021-12-22 19:49:12,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-22 19:49:12,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:49:12,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2021-12-22 19:49:12,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 2 letters. Loop has 1 letters. [2021-12-22 19:49:12,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:49:12,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 3 letters. Loop has 1 letters. [2021-12-22 19:49:12,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:49:12,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 2 letters. Loop has 2 letters. [2021-12-22 19:49:12,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:49:12,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 30 transitions. [2021-12-22 19:49:12,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-22 19:49:12,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 6 states and 8 transitions. [2021-12-22 19:49:12,433 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-12-22 19:49:12,433 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-12-22 19:49:12,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2021-12-22 19:49:12,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 19:49:12,434 INFO L681 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-12-22 19:49:12,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2021-12-22 19:49:12,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-12-22 19:49:12,449 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) [2021-12-22 19:49:12,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-12-22 19:49:12,450 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-12-22 19:49:12,450 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-12-22 19:49:12,451 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 19:49:12,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2021-12-22 19:49:12,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-22 19:49:12,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:49:12,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:49:12,452 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-22 19:49:12,452 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-22 19:49:12,453 INFO L791 eck$LassoCheckResult]: Stem: 66#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 67#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; 63#L10-2 assume !(main_~i~0#1 < 100); 64#L10-3 main_~j~0#1 := 5; 68#L15-2 [2021-12-22 19:49:12,453 INFO L793 eck$LassoCheckResult]: Loop: 68#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; 68#L15-2 [2021-12-22 19:49:12,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:49:12,453 INFO L85 PathProgramCache]: Analyzing trace with hash 925737, now seen corresponding path program 1 times [2021-12-22 19:49:12,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:49:12,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87210145] [2021-12-22 19:49:12,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:49:12,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:49:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:49:12,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:49:12,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:49:12,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87210145] [2021-12-22 19:49:12,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87210145] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 19:49:12,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 19:49:12,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 19:49:12,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346052675] [2021-12-22 19:49:12,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 19:49:12,479 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-22 19:49:12,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:49:12,480 INFO L85 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2021-12-22 19:49:12,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:49:12,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701561368] [2021-12-22 19:49:12,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:49:12,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:49:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:12,484 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:49:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:49:12,486 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:49:12,501 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:49:12,501 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:49:12,501 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:49:12,501 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:49:12,501 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-22 19:49:12,501 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,501 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:49:12,502 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:49:12,502 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2021-12-22 19:49:12,502 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:49:12,502 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:49:12,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:12,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:12,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:12,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:12,540 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:49:12,541 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-22 19:49:12,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:12,556 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) [2021-12-22 19:49:12,568 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 [2021-12-22 19:49:12,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 19:49:12,574 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:12,592 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 19:49:12,592 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: [] [2021-12-22 19:49:12,611 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 [2021-12-22 19:49:12,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:12,613 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) [2021-12-22 19:49:12,614 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 [2021-12-22 19:49:12,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 19:49:12,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:12,653 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 [2021-12-22 19:49:12,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:12,654 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) [2021-12-22 19:49:12,656 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 [2021-12-22 19:49:12,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-22 19:49:12,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 19:49:12,715 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-22 19:49:12,733 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 [2021-12-22 19:49:12,733 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:49:12,733 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:49:12,733 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:49:12,733 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:49:12,733 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 19:49:12,734 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,734 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:49:12,734 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:49:12,734 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2021-12-22 19:49:12,734 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:49:12,734 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:49:12,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:12,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:12,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:12,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:49:12,777 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:49:12,777 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 19:49:12,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:12,779 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) [2021-12-22 19:49:12,811 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 [2021-12-22 19:49:12,812 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:49:12,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:49:12,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:49:12,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:49:12,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:49:12,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:49:12,823 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:49:12,847 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 [2021-12-22 19:49:12,857 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:49:12,889 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 [2021-12-22 19:49:12,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:12,891 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) [2021-12-22 19:49:12,902 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 [2021-12-22 19:49:12,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:49:12,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:49:12,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:49:12,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:49:12,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:49:12,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:49:12,909 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:49:12,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:49:12,931 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 19:49:12,932 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-22 19:49:12,933 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-22 19:49:12,933 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:49:12,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:49:12,934 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) [2021-12-22 19:49:12,935 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 [2021-12-22 19:49:12,936 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 19:49:12,936 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-22 19:49:12,936 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 19:49:12,936 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 [] [2021-12-22 19:49:12,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-22 19:49:12,953 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-22 19:49:12,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:49:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:49:12,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:49:12,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:49:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:49:12,991 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 19:49:12,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:49:12,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:49:12,992 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-22 19:49:12,992 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) [2021-12-22 19:49:13,005 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. [2021-12-22 19:49:13,006 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 [2021-12-22 19:49:13,006 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) [2021-12-22 19:49:13,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2021-12-22 19:49:13,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2021-12-22 19:49:13,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:49:13,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 5 letters. Loop has 1 letters. [2021-12-22 19:49:13,008 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:49:13,008 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-22 19:49:13,008 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:49:13,008 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 9 transitions. [2021-12-22 19:49:13,008 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-22 19:49:13,009 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2021-12-22 19:49:13,009 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-22 19:49:13,009 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-22 19:49:13,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-22 19:49:13,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 19:49:13,009 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 19:49:13,009 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 19:49:13,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:49:13,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 19:49:13,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 19:49:13,012 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) [2021-12-22 19:49:13,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:49:13,014 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-12-22 19:49:13,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-22 19:49:13,015 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-12-22 19:49:13,015 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-22 19:49:13,015 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 19:49:13,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-22 19:49:13,015 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-22 19:49:13,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-22 19:49:13,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 19:49:13,015 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 19:49:13,015 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 19:49:13,016 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 19:49:13,016 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-22 19:49:13,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-22 19:49:13,016 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-22 19:49:13,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-22 19:49:13,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 07:49:13 BoogieIcfgContainer [2021-12-22 19:49:13,035 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 19:49:13,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 19:49:13,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 19:49:13,036 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 19:49:13,037 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:49:11" (3/4) ... [2021-12-22 19:49:13,039 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-22 19:49:13,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 19:49:13,039 INFO L158 Benchmark]: Toolchain (without parser) took 1895.03ms. Allocated memory is still 174.1MB. Free memory was 145.8MB in the beginning and 141.8MB in the end (delta: 4.1MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2021-12-22 19:49:13,040 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory was 49.9MB in the beginning and 49.8MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:49:13,040 INFO L158 Benchmark]: CACSL2BoogieTranslator took 149.09ms. Allocated memory is still 174.1MB. Free memory was 145.8MB in the beginning and 152.2MB in the end (delta: -6.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 19:49:13,040 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.87ms. Allocated memory is still 174.1MB. Free memory was 152.2MB in the beginning and 150.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:49:13,041 INFO L158 Benchmark]: Boogie Preprocessor took 11.44ms. Allocated memory is still 174.1MB. Free memory was 150.9MB in the beginning and 150.1MB in the end (delta: 774.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 19:49:13,041 INFO L158 Benchmark]: RCFGBuilder took 169.37ms. Allocated memory is still 174.1MB. Free memory was 149.4MB in the beginning and 141.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 19:49:13,042 INFO L158 Benchmark]: BuchiAutomizer took 1535.72ms. Allocated memory is still 174.1MB. Free memory was 141.0MB in the beginning and 141.8MB in the end (delta: -798.4kB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2021-12-22 19:49:13,042 INFO L158 Benchmark]: Witness Printer took 3.13ms. Allocated memory is still 174.1MB. Free memory is still 141.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:49:13,044 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory was 49.9MB in the beginning and 49.8MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 149.09ms. Allocated memory is still 174.1MB. Free memory was 145.8MB in the beginning and 152.2MB in the end (delta: -6.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.87ms. Allocated memory is still 174.1MB. Free memory was 152.2MB in the beginning and 150.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.44ms. Allocated memory is still 174.1MB. Free memory was 150.9MB in the beginning and 150.1MB in the end (delta: 774.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 169.37ms. Allocated memory is still 174.1MB. Free memory was 149.4MB in the beginning and 141.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1535.72ms. Allocated memory is still 174.1MB. Free memory was 141.0MB in the beginning and 141.8MB in the end (delta: -798.4kB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. * Witness Printer took 3.13ms. Allocated memory is still 174.1MB. Free memory is still 141.8MB. 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 1.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. 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 6 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 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-22 19:49:13,104 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 [2021-12-22 19:49:13,294 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