./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Bangalore-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/Bangalore-2.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 9c51224894dcd32e556532086a33c2900554a2d1 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 01:15:00,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 01:15:00,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 01:15:00,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 01:15:00,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 01:15:00,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 01:15:00,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 01:15:00,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 01:15:00,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 01:15:00,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 01:15:00,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 01:15:00,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 01:15:00,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 01:15:00,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 01:15:00,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 01:15:00,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 01:15:00,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 01:15:00,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 01:15:00,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 01:15:00,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 01:15:00,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 01:15:00,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 01:15:00,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 01:15:00,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 01:15:00,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 01:15:00,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 01:15:00,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 01:15:00,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 01:15:00,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 01:15:00,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 01:15:00,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 01:15:00,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 01:15:00,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 01:15:00,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 01:15:00,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 01:15:00,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 01:15:00,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 01:15:00,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 01:15:00,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 01:15:00,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 01:15:00,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 01:15:00,302 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-31 01:15:00,321 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 01:15:00,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 01:15:00,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 01:15:00,322 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 01:15:00,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 01:15:00,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 01:15:00,324 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 01:15:00,324 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 01:15:00,324 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 01:15:00,326 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 01:15:00,327 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 01:15:00,327 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 01:15:00,328 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 01:15:00,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 01:15:00,328 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 01:15:00,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 01:15:00,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 01:15:00,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 01:15:00,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 01:15:00,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 01:15:00,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 01:15:00,329 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 01:15:00,329 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 01:15:00,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 01:15:00,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 01:15:00,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 01:15:00,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 01:15:00,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 01:15:00,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 01:15:00,332 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 01:15:00,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c51224894dcd32e556532086a33c2900554a2d1 [2021-08-31 01:15:00,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 01:15:00,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 01:15:00,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 01:15:00,663 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 01:15:00,663 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 01:15:00,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Bangalore-2.c [2021-08-31 01:15:00,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9192ad4fe/408b50088ce148aabcd97ff1b1db26a6/FLAG6808a18a5 [2021-08-31 01:15:01,179 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 01:15:01,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Bangalore-2.c [2021-08-31 01:15:01,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9192ad4fe/408b50088ce148aabcd97ff1b1db26a6/FLAG6808a18a5 [2021-08-31 01:15:01,722 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9192ad4fe/408b50088ce148aabcd97ff1b1db26a6 [2021-08-31 01:15:01,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 01:15:01,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 01:15:01,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 01:15:01,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 01:15:01,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 01:15:01,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b80dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01, skipping insertion in model container [2021-08-31 01:15:01,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 01:15:01,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 01:15:01,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:15:01,866 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 01:15:01,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:15:01,884 INFO L208 MainTranslator]: Completed translation [2021-08-31 01:15:01,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01 WrapperNode [2021-08-31 01:15:01,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 01:15:01,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 01:15:01,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 01:15:01,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 01:15:01,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 01:15:01,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 01:15:01,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 01:15:01,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 01:15:01,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 01:15:01,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 01:15:01,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 01:15:01,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 01:15:01,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:01,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:01,990 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) [2021-08-31 01:15:02,019 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 [2021-08-31 01:15:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 01:15:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 01:15:02,123 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 01:15:02,124 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-31 01:15:02,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:15:02 BoogieIcfgContainer [2021-08-31 01:15:02,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 01:15:02,128 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 01:15:02,128 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 01:15:02,131 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 01:15:02,131 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:15:02,132 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 01:15:01" (1/3) ... [2021-08-31 01:15:02,132 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@326b3561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:15:02, skipping insertion in model container [2021-08-31 01:15:02,133 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:15:02,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01" (2/3) ... [2021-08-31 01:15:02,133 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@326b3561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:15:02, skipping insertion in model container [2021-08-31 01:15:02,133 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:15:02,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:15:02" (3/3) ... [2021-08-31 01:15:02,134 INFO L389 chiAutomizerObserver]: Analyzing ICFG Bangalore-2.c [2021-08-31 01:15:02,189 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 01:15:02,190 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 01:15:02,190 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 01:15:02,191 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 01:15:02,191 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 01:15:02,191 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 01:15:02,191 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 01:15:02,191 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 01:15:02,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-08-31 01:15:02,216 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:15:02,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:15:02,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:15:02,221 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 01:15:02,222 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-31 01:15:02,222 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 01:15:02,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-08-31 01:15:02,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:15:02,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:15:02,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:15:02,224 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 01:15:02,224 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-31 01:15:02,229 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L18true assume main_~y~0 >= 1; 3#L19-2true [2021-08-31 01:15:02,229 INFO L793 eck$LassoCheckResult]: Loop: 3#L19-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~y~0; 3#L19-2true [2021-08-31 01:15:02,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:02,234 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-08-31 01:15:02,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:15:02,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912356963] [2021-08-31 01:15:02,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:15:02,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:15:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:02,325 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:15:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:02,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:15:02,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:02,347 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2021-08-31 01:15:02,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:15:02,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452631601] [2021-08-31 01:15:02,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:15:02,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:15:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:02,362 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:15:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:02,374 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:15:02,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:02,375 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2021-08-31 01:15:02,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:15:02,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057417878] [2021-08-31 01:15:02,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:15:02,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:15:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:02,386 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:15:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:02,398 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:15:02,537 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:15:02,537 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:15:02,537 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:15:02,538 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:15:02,538 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:15:02,538 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:02,538 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:15:02,538 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:15:02,538 INFO L133 ssoRankerPreferences]: Filename of dumped script: Bangalore-2.c_Iteration1_Lasso [2021-08-31 01:15:02,539 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:15:02,539 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:15:02,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:02,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:02,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:02,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:02,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:02,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:02,711 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:15:02,712 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:15:02,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:02,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:02,750 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) [2021-08-31 01:15:02,751 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 [2021-08-31 01:15:02,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:15:02,757 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:15:02,787 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:15:02,787 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:15:02,819 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 [2021-08-31 01:15:02,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:02,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:02,822 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) [2021-08-31 01:15:02,823 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 [2021-08-31 01:15:02,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:15:02,825 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:15:02,845 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:15:02,845 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: [] [2021-08-31 01:15:02,871 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 [2021-08-31 01:15:02,871 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:02,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:02,873 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) [2021-08-31 01:15:02,874 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 [2021-08-31 01:15:02,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:15:02,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:15:02,893 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:15:02,893 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:15:02,918 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 [2021-08-31 01:15:02,919 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:02,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:02,921 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) [2021-08-31 01:15:02,923 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 [2021-08-31 01:15:02,925 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:15:02,925 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:15:02,941 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:15:02,941 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:15:02,967 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 [2021-08-31 01:15:02,968 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:02,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:02,970 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) [2021-08-31 01:15:02,971 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 [2021-08-31 01:15:02,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:15:02,975 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:15:03,020 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 [2021-08-31 01:15:03,021 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:03,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:03,022 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) [2021-08-31 01:15:03,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:15:03,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:15:03,056 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 [2021-08-31 01:15:03,121 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:15:03,126 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 [2021-08-31 01:15:03,127 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:15:03,127 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:15:03,127 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:15:03,127 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:15:03,127 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:15:03,127 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:03,127 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:15:03,127 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:15:03,127 INFO L133 ssoRankerPreferences]: Filename of dumped script: Bangalore-2.c_Iteration1_Lasso [2021-08-31 01:15:03,128 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:15:03,128 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:15:03,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:03,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:03,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:03,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:03,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:03,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:15:03,227 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:15:03,231 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:15:03,232 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:03,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:03,237 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) [2021-08-31 01:15:03,239 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 [2021-08-31 01:15:03,241 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 [2021-08-31 01:15:03,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:15:03,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:15:03,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:15:03,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:15:03,253 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:15:03,253 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:15:03,265 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:15:03,281 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 [2021-08-31 01:15:03,281 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:03,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:03,282 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) [2021-08-31 01:15:03,283 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 [2021-08-31 01:15:03,284 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 [2021-08-31 01:15:03,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:15:03,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:15:03,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:15:03,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:15:03,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:15:03,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:15:03,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:15:03,306 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:15:03,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-08-31 01:15:03,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:03,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:03,330 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) [2021-08-31 01:15:03,331 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 [2021-08-31 01:15:03,332 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 [2021-08-31 01:15:03,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:15:03,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:15:03,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:15:03,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:15:03,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:15:03,340 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:15:03,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:15:03,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:15:03,359 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 [2021-08-31 01:15:03,360 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:03,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:03,361 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) [2021-08-31 01:15:03,361 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 [2021-08-31 01:15:03,363 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 [2021-08-31 01:15:03,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:15:03,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:15:03,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:15:03,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:15:03,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:15:03,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:15:03,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:15:03,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:15:03,396 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 [2021-08-31 01:15:03,396 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:03,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:03,397 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) [2021-08-31 01:15:03,398 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 [2021-08-31 01:15:03,399 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 [2021-08-31 01:15:03,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:15:03,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:15:03,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:15:03,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:15:03,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:15:03,409 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:15:03,437 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:15:03,469 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 [2021-08-31 01:15:03,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:03,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:03,472 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) [2021-08-31 01:15:03,473 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 [2021-08-31 01:15:03,474 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 [2021-08-31 01:15:03,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:15:03,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:15:03,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:15:03,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:15:03,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:15:03,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:15:03,508 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:15:03,514 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-08-31 01:15:03,514 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-31 01:15:03,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:03,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:03,517 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) [2021-08-31 01:15:03,518 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 [2021-08-31 01:15:03,518 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:15:03,526 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-31 01:15:03,526 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:15:03,526 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2021-08-31 01:15:03,542 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 [2021-08-31 01:15:03,548 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-08-31 01:15:03,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:15:03,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-31 01:15:03,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:15:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:15:03,594 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-31 01:15:03,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:15:03,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:15:03,619 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 [2021-08-31 01:15:03,621 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-08-31 01:15:03,666 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 20 states and 23 transitions. Complement of second has 5 states. [2021-08-31 01:15:03,667 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 [2021-08-31 01:15:03,671 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) [2021-08-31 01:15:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-08-31 01:15:03,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 1 letters. [2021-08-31 01:15:03,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:15:03,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 1 letters. [2021-08-31 01:15:03,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:15:03,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 2 letters. [2021-08-31 01:15:03,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:15:03,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2021-08-31 01:15:03,677 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 01:15:03,679 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2021-08-31 01:15:03,680 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 01:15:03,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 01:15:03,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 01:15:03,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 01:15:03,681 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:15:03,681 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:15:03,681 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:15:03,681 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 01:15:03,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 01:15:03,682 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 01:15:03,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 01:15:03,684 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 01:15:03,687 INFO L158 Benchmark]: Toolchain (without parser) took 1956.39ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 39.8MB in the beginning and 36.7MB in the end (delta: 3.1MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2021-08-31 01:15:03,687 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 60.8MB. Free memory was 43.2MB in the beginning and 43.2MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:15:03,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.54ms. Allocated memory is still 60.8MB. Free memory was 39.5MB in the beginning and 30.8MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-31 01:15:03,688 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.21ms. Allocated memory is still 60.8MB. Free memory was 30.8MB in the beginning and 45.4MB in the end (delta: -14.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 01:15:03,689 INFO L158 Benchmark]: Boogie Preprocessor took 14.58ms. Allocated memory is still 60.8MB. Free memory was 45.4MB in the beginning and 44.5MB in the end (delta: 912.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:15:03,689 INFO L158 Benchmark]: RCFGBuilder took 170.06ms. Allocated memory is still 60.8MB. Free memory was 44.5MB in the beginning and 37.4MB in the end (delta: 7.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 01:15:03,690 INFO L158 Benchmark]: BuchiAutomizer took 1557.50ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.2MB in the beginning and 36.7MB in the end (delta: 552.3kB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2021-08-31 01:15:03,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 60.8MB. Free memory was 43.2MB in the beginning and 43.2MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 153.54ms. Allocated memory is still 60.8MB. Free memory was 39.5MB in the beginning and 30.8MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.21ms. Allocated memory is still 60.8MB. Free memory was 30.8MB in the beginning and 45.4MB in the end (delta: -14.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.58ms. Allocated memory is still 60.8MB. Free memory was 45.4MB in the beginning and 44.5MB in the end (delta: 912.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 170.06ms. Allocated memory is still 60.8MB. Free memory was 44.5MB in the beginning and 37.4MB in the end (delta: 7.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1557.50ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.2MB in the beginning and 36.7MB in the end (delta: 552.3kB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 01:15:03,725 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 [2021-08-31 01:15:03,929 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...