./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Benghazi_nondet-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/Benghazi_nondet-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 1be465c325e488658b014d302be974cdfc478282 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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 01:15:00,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 01:15:00,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 01:15:00,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 01:15:00,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 01:15:00,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 01:15:00,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 01:15:00,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 01:15:00,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 01:15:00,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 01:15:00,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 01:15:00,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 01:15:00,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 01:15:00,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 01:15:00,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 01:15:00,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 01:15:00,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 01:15:00,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 01:15:00,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 01:15:00,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 01:15:00,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 01:15:00,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 01:15:00,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 01:15:00,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 01:15:00,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 01:15:00,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 01:15:00,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 01:15:00,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 01:15:00,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 01:15:00,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 01:15:00,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 01:15:00,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 01:15:00,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 01:15:00,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 01:15:00,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 01:15:00,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 01:15:00,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 01:15:00,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 01:15:00,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 01:15:00,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 01:15:00,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 01:15:00,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-31 01:15:00,323 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 01:15:00,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 01:15:00,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 01:15:00,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 01:15:00,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 01:15:00,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 01:15:00,326 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 01:15:00,326 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 01:15:00,326 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 01:15:00,327 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 01:15:00,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 01:15:00,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 01:15:00,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 01:15:00,336 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 01:15:00,336 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 01:15:00,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 01:15:00,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 01:15:00,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 01:15:00,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 01:15:00,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 01:15:00,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 01:15:00,338 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 01:15:00,338 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1be465c325e488658b014d302be974cdfc478282 [2021-08-31 01:15:00,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 01:15:00,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 01:15:00,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 01:15:00,652 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 01:15:00,652 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 01:15:00,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2021-08-31 01:15:00,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7137894d/beda274c29e8435b9d2df285ee555b9a/FLAG3b0778a87 [2021-08-31 01:15:01,056 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 01:15:01,057 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2021-08-31 01:15:01,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7137894d/beda274c29e8435b9d2df285ee555b9a/FLAG3b0778a87 [2021-08-31 01:15:01,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7137894d/beda274c29e8435b9d2df285ee555b9a [2021-08-31 01:15:01,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 01:15:01,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 01:15:01,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 01:15:01,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 01:15:01,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 01:15:01,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff55ad 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 01:15:01,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:15:01" (1/1) ... [2021-08-31 01:15:01,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 01:15:01,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 01:15:01,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:15:01,217 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 01:15:01,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:15:01,243 INFO L208 MainTranslator]: Completed translation [2021-08-31 01:15:01,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:15:01 WrapperNode [2021-08-31 01:15:01,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 01:15:01,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 01:15:01,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 01:15:01,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 01:15:01,253 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 01:15:01,266 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 01:15:01,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 01:15:01,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 01:15:01,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 01:15:01,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 01:15:01,297 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 01:15:01,297 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 01:15:01,298 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 01:15:01,298 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 01:15:01,300 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 01:15:01,302 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 01:15:01,303 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 01:15:01,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 01:15:01,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 01:15:01,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 01:15:01,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 01:15:01,307 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 01:15:01,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:01,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:01,338 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 01:15:01,345 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 01:15:01,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 01:15:01,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 01:15:01,476 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 01:15:01,476 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-31 01:15:01,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:15:01 BoogieIcfgContainer [2021-08-31 01:15:01,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 01:15:01,479 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 01:15:01,479 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 01:15:01,481 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 01:15:01,481 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:15:01,481 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 01:15:01" (1/3) ... [2021-08-31 01:15:01,482 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@388def94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:15:01, skipping insertion in model container [2021-08-31 01:15:01,482 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:15:01,482 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 01:15:01,483 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@388def94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:15:01, skipping insertion in model container [2021-08-31 01:15:01,483 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:15:01,483 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:15:01" (3/3) ... [2021-08-31 01:15:01,484 INFO L389 chiAutomizerObserver]: Analyzing ICFG Benghazi_nondet-2.c [2021-08-31 01:15:01,527 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 01:15:01,527 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 01:15:01,527 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 01:15:01,528 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 01:15:01,528 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 01:15:01,528 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 01:15:01,528 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 01:15:01,528 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 01:15:01,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 01:15:01,548 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:15:01,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:15:01,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:15:01,552 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-31 01:15:01,552 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-31 01:15:01,552 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 01:15:01,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 01:15:01,553 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:15:01,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:15:01,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:15:01,563 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-31 01:15:01,564 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-31 01:15:01,568 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~d1~0, main_~d2~0, main_~d1old~0;havoc main_~x~0;havoc main_~d1~0;havoc main_~d2~0;havoc main_~d1old~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~d1~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d2~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L18true assume !!(-1048575 <= main_~x~0 && main_~x~0 <= 1048575); 9#L19true assume !!(-1048575 <= main_~d1~0 && main_~d1~0 <= 1048575); 10#L20true assume !!(-1048575 <= main_~d2~0 && main_~d2~0 <= 1048575); 8#L21-2true [2021-08-31 01:15:01,569 INFO L793 eck$LassoCheckResult]: Loop: 8#L21-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~d1~0;main_~d1old~0 := main_~d1~0;main_~d1~0 := 1 + main_~d2~0;main_~d2~0 := 1 + main_~d1old~0; 8#L21-2true [2021-08-31 01:15:01,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:01,573 INFO L82 PathProgramCache]: Analyzing trace with hash 959435, now seen corresponding path program 1 times [2021-08-31 01:15:01,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:15:01,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368480023] [2021-08-31 01:15:01,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:15:01,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:15:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:01,644 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:15:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:01,666 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:15:01,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:01,669 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2021-08-31 01:15:01,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:15:01,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453173020] [2021-08-31 01:15:01,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:15:01,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:15:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:01,686 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:15:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:01,699 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:15:01,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:01,701 INFO L82 PathProgramCache]: Analyzing trace with hash 29742510, now seen corresponding path program 1 times [2021-08-31 01:15:01,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:15:01,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118891776] [2021-08-31 01:15:01,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:15:01,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:15:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:01,720 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:15:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:15:01,735 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:15:01,856 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:15:01,857 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:15:01,857 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:15:01,857 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:15:01,857 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:15:01,857 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:01,858 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:15:01,858 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:15:01,858 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2021-08-31 01:15:01,858 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:15:01,858 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:15:01,870 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 01:15:01,892 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 01:15:01,895 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 01:15:01,954 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:15:01,954 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:15:01,955 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:01,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:01,957 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 01:15:01,960 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 01:15:01,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:15:01,961 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:15:01,991 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:15:01,991 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: [] [2021-08-31 01:15:02,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-08-31 01:15:02,045 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:02,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:02,064 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 01:15:02,065 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 01:15:02,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:15:02,202 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:15:02,224 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:15:02,225 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 01:15:02,243 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 01:15:02,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:02,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:02,246 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 01:15:02,247 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 01:15:02,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:15:02,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:15:02,300 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 01:15:02,301 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:02,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:02,302 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 01:15:02,303 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 01:15:02,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:15:02,304 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:15:03,958 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:15:03,965 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 01:15:03,965 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:15:03,966 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:15:03,966 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:15:03,966 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:15:03,966 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:15:03,966 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:03,966 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:15:03,966 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:15:03,966 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2021-08-31 01:15:03,966 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:15:03,966 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:15:03,968 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 01:15:03,983 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 01:15:04,004 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 01:15:04,074 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:15:04,076 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:15:04,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:04,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:04,081 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 01:15:04,082 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 01:15:04,106 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 01:15:04,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:15:04,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:15:04,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:15:04,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:15:04,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:15:04,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:15:04,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:15:04,138 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:15:04,158 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 01:15:04,159 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:04,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:04,160 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 01:15:04,161 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 01:15:04,162 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 01:15:04,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:15:04,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:15:04,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:15:04,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:15:04,176 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:15:04,176 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:15:04,188 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:15:04,206 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 01:15:04,206 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:04,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:04,208 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 01:15:04,209 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 01:15:04,228 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 01:15:04,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:15:04,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:15:04,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:15:04,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:15:04,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:15:04,239 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:15:04,254 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:15:04,272 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 01:15:04,273 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-08-31 01:15:04,273 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:04,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:04,274 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 01:15:04,275 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 01:15:04,276 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 01:15:04,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:15:04,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:15:04,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:15:04,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:15:04,285 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-31 01:15:04,289 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-31 01:15:04,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:15:04,303 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:15:04,321 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 [2021-08-31 01:15:04,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:04,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:04,324 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 01:15:04,326 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 01:15:04,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:15:04,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:15:04,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:15:04,334 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-31 01:15:04,338 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-08-31 01:15:04,338 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-08-31 01:15:04,342 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 01:15:04,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:15:04,365 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 01:15:04,365 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:04,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:04,367 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 01:15:04,368 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 01:15:04,425 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 01:15:04,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:15:04,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:15:04,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:15:04,433 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-31 01:15:04,439 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-08-31 01:15:04,439 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-08-31 01:15:04,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:15:04,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-08-31 01:15:04,467 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-08-31 01:15:04,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:04,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:04,469 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 01:15:04,469 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 01:15:04,470 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 01:15:04,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:15:04,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:15:04,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:15:04,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:15:04,489 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-31 01:15:04,492 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-31 01:15:04,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:15:04,516 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:15:04,521 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-08-31 01:15:04,522 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:15:04,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:15:04,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:15:04,524 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 01:15:04,525 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:15:04,525 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:15:04,526 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:15:04,526 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d1~0 - 1*ULTIMATE.start_main_~d2~0 f1 = 2*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~d1~0 + 1 f2 = 1*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2021-08-31 01:15:04,526 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 01:15:04,548 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 01:15:04,550 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:15:04,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:15:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:15:04,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:15:04,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:15:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:15:04,624 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-31 01:15:04,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:15:04,625 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 01:15:04,650 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 01:15:04,651 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 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) [2021-08-31 01:15:04,696 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 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 21 states and 26 transitions. Complement of second has 5 states. [2021-08-31 01:15:04,697 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 01:15:04,702 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) [2021-08-31 01:15:04,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-08-31 01:15:04,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 1 letters. [2021-08-31 01:15:04,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:15:04,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 1 letters. [2021-08-31 01:15:04,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:15:04,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2021-08-31 01:15:04,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:15:04,710 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2021-08-31 01:15:04,713 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 01:15:04,715 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2021-08-31 01:15:04,715 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 01:15:04,716 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 01:15:04,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 01:15:04,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 01:15:04,716 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:15:04,716 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:15:04,716 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:15:04,716 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 01:15:04,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 01:15:04,717 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 01:15:04,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 01:15:04,719 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 01:15:04,722 INFO L158 Benchmark]: Toolchain (without parser) took 3643.03ms. Allocated memory was 56.6MB in the beginning and 79.7MB in the end (delta: 23.1MB). Free memory was 35.0MB in the beginning and 38.1MB in the end (delta: -3.1MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2021-08-31 01:15:04,723 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 38.4MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:15:04,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.64ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 26.2MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-31 01:15:04,726 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.30ms. Allocated memory is still 56.6MB. Free memory was 26.1MB in the beginning and 40.3MB in the end (delta: -14.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 01:15:04,727 INFO L158 Benchmark]: Boogie Preprocessor took 13.09ms. Allocated memory is still 56.6MB. Free memory was 40.3MB in the beginning and 39.4MB in the end (delta: 926.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:15:04,727 INFO L158 Benchmark]: RCFGBuilder took 172.00ms. Allocated memory is still 56.6MB. Free memory was 39.4MB in the beginning and 32.0MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-31 01:15:04,728 INFO L158 Benchmark]: BuchiAutomizer took 3242.09ms. Allocated memory was 56.6MB in the beginning and 79.7MB in the end (delta: 23.1MB). Free memory was 31.9MB in the beginning and 38.1MB in the end (delta: -6.2MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2021-08-31 01:15:04,733 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 38.4MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.64ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 26.2MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.30ms. Allocated memory is still 56.6MB. Free memory was 26.1MB in the beginning and 40.3MB in the end (delta: -14.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.09ms. Allocated memory is still 56.6MB. Free memory was 40.3MB in the beginning and 39.4MB in the end (delta: 926.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 172.00ms. Allocated memory is still 56.6MB. Free memory was 39.4MB in the beginning and 32.0MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3242.09ms. Allocated memory was 56.6MB in the beginning and 79.7MB in the end (delta: 23.1MB). Free memory was 31.9MB in the beginning and 38.1MB in the end (delta: -6.2MB). Peak memory consumption was 19.3MB. 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 3-nested ranking function (if -1 * d2 + -1 * d1 > 0 then 2 else (if -1 * d1 + 2 * x + 1 > 0 then 1 else 0)), (if -1 * d2 + -1 * d1 > 0 then -1 * d2 + -1 * d1 else (if -1 * d1 + 2 * x + 1 > 0 then -1 * d1 + 2 * x + 1 else 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 01:15:04,758 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 01:15:04,973 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...