./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/c.01-no-inv.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-restricted-15/c.01-no-inv.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 90c8922c67b3eb8c55716b63a408098d1b23a21e .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 01:32:44,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 01:32:44,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 01:32:44,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 01:32:44,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 01:32:44,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 01:32:44,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 01:32:44,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 01:32:44,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 01:32:44,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 01:32:44,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 01:32:44,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 01:32:44,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 01:32:44,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 01:32:44,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 01:32:44,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 01:32:44,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 01:32:44,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 01:32:44,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 01:32:44,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 01:32:44,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 01:32:44,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 01:32:44,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 01:32:44,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 01:32:44,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 01:32:44,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 01:32:44,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 01:32:44,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 01:32:44,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 01:32:44,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 01:32:44,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 01:32:44,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 01:32:44,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 01:32:44,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 01:32:44,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 01:32:44,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 01:32:44,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 01:32:44,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 01:32:44,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 01:32:44,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 01:32:44,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 01:32:44,399 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-31 01:32:44,422 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 01:32:44,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 01:32:44,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 01:32:44,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 01:32:44,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 01:32:44,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 01:32:44,424 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 01:32:44,425 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 01:32:44,425 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 01:32:44,425 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 01:32:44,426 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 01:32:44,426 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 01:32:44,426 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 01:32:44,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 01:32:44,426 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 01:32:44,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 01:32:44,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 01:32:44,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 01:32:44,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 01:32:44,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 01:32:44,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 01:32:44,427 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 01:32:44,427 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 01:32:44,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 01:32:44,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 01:32:44,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 01:32:44,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 01:32:44,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 01:32:44,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 01:32:44,429 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 01:32:44,429 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90c8922c67b3eb8c55716b63a408098d1b23a21e [2021-08-31 01:32:44,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 01:32:44,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 01:32:44,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 01:32:44,694 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 01:32:44,694 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 01:32:44,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c [2021-08-31 01:32:44,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d708808b7/84411496867e49e7bf6dbb3ce46865ba/FLAGac2789bba [2021-08-31 01:32:45,093 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 01:32:45,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c [2021-08-31 01:32:45,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d708808b7/84411496867e49e7bf6dbb3ce46865ba/FLAGac2789bba [2021-08-31 01:32:45,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d708808b7/84411496867e49e7bf6dbb3ce46865ba [2021-08-31 01:32:45,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 01:32:45,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 01:32:45,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 01:32:45,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 01:32:45,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 01:32:45,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:32:45" (1/1) ... [2021-08-31 01:32:45,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35d32b15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:45, skipping insertion in model container [2021-08-31 01:32:45,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:32:45" (1/1) ... [2021-08-31 01:32:45,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 01:32:45,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 01:32:45,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:32:45,244 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 01:32:45,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:32:45,266 INFO L208 MainTranslator]: Completed translation [2021-08-31 01:32:45,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:45 WrapperNode [2021-08-31 01:32:45,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 01:32:45,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 01:32:45,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 01:32:45,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 01:32:45,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:45" (1/1) ... [2021-08-31 01:32:45,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:45" (1/1) ... [2021-08-31 01:32:45,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 01:32:45,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 01:32:45,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 01:32:45,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 01:32:45,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:45" (1/1) ... [2021-08-31 01:32:45,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:45" (1/1) ... [2021-08-31 01:32:45,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:45" (1/1) ... [2021-08-31 01:32:45,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:45" (1/1) ... [2021-08-31 01:32:45,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:45" (1/1) ... [2021-08-31 01:32:45,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:45" (1/1) ... [2021-08-31 01:32:45,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:45" (1/1) ... [2021-08-31 01:32:45,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 01:32:45,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 01:32:45,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 01:32:45,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 01:32:45,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:45" (1/1) ... [2021-08-31 01:32:45,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:45,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:45,354 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 01:32:45,404 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 01:32:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 01:32:45,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 01:32:45,503 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 01:32:45,503 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-31 01:32:45,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:32:45 BoogieIcfgContainer [2021-08-31 01:32:45,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 01:32:45,505 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 01:32:45,505 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 01:32:45,508 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 01:32:45,508 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:32:45,508 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 01:32:45" (1/3) ... [2021-08-31 01:32:45,509 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77531a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:32:45, skipping insertion in model container [2021-08-31 01:32:45,509 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:32:45,509 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:45" (2/3) ... [2021-08-31 01:32:45,509 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77531a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:32:45, skipping insertion in model container [2021-08-31 01:32:45,509 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:32:45,510 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:32:45" (3/3) ... [2021-08-31 01:32:45,510 INFO L389 chiAutomizerObserver]: Analyzing ICFG c.01-no-inv.c [2021-08-31 01:32:45,548 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 01:32:45,549 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 01:32:45,549 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 01:32:45,549 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 01:32:45,549 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 01:32:45,549 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 01:32:45,550 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 01:32:45,550 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 01:32:45,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:45,570 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-31 01:32:45,570 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:45,570 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:45,574 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-31 01:32:45,574 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-31 01:32:45,574 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 01:32:45,574 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:45,575 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-31 01:32:45,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:45,575 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:45,575 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-31 01:32:45,575 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-31 01:32:45,580 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~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;main_~c~0 := 0; 5#L10-2true [2021-08-31 01:32:45,580 INFO L793 eck$LassoCheckResult]: Loop: 5#L10-2true assume !!(main_~x~0 >= 0);main_~y~0 := 1; 3#L12-2true assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 8#L12-3true main_~x~0 := main_~x~0 - 1; 5#L10-2true [2021-08-31 01:32:45,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:45,585 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-08-31 01:32:45,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:45,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436875087] [2021-08-31 01:32:45,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:45,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:45,644 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:45,658 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:45,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:45,661 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2021-08-31 01:32:45,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:45,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740757976] [2021-08-31 01:32:45,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:45,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:45,675 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:45,689 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:45,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:45,689 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2021-08-31 01:32:45,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:45,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897794757] [2021-08-31 01:32:45,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:45,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:45,694 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:45,700 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:45,815 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:45,816 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:45,816 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:45,816 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:45,816 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:45,816 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:45,816 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:45,816 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:45,816 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration1_Loop [2021-08-31 01:32:45,816 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:45,816 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:45,826 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 01:32:45,843 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 01:32:45,845 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 01:32:45,918 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:45,919 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:45,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:45,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:45,921 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 01:32:45,922 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 01:32:45,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:45,933 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:45,957 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:45,957 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 01:32:45,976 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 01:32:45,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:45,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:45,977 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 01:32:45,978 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 01:32:45,979 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:45,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:46,001 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:46,001 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 01:32:46,018 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 01:32:46,019 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:46,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:46,020 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 01:32:46,021 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 01:32:46,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:46,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:46,060 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 01:32:46,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:46,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:46,069 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 01:32:46,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:46,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:46,102 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 01:32:46,127 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:46,130 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 01:32:46,130 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:46,131 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:46,131 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:46,131 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:46,131 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:46,131 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:46,131 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:46,131 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:46,131 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration1_Loop [2021-08-31 01:32:46,131 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:46,131 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:46,132 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 01:32:46,140 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 01:32:46,142 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 01:32:46,175 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:46,178 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:46,178 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:46,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:46,179 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 01:32:46,210 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 01:32:46,222 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 01:32:46,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:46,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:46,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:46,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:46,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:46,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:46,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:46,248 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:46,251 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:46,251 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:32:46,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:46,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:46,253 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 01:32:46,254 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 01:32:46,255 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:46,255 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:46,255 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:46,255 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2021-08-31 01:32:46,271 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 01:32:46,272 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:46,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:46,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:46,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:46,309 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:46,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:46,350 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 01:32:46,370 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-31 01:32:46,371 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:46,421 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 35 transitions. Complement of second has 7 states. [2021-08-31 01:32:46,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:46,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:46,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-08-31 01:32:46,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2021-08-31 01:32:46,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:46,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2021-08-31 01:32:46,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:46,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2021-08-31 01:32:46,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:46,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2021-08-31 01:32:46,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:32:46,435 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-08-31 01:32:46,435 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-08-31 01:32:46,435 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-08-31 01:32:46,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-08-31 01:32:46,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:46,436 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-08-31 01:32:46,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-08-31 01:32:46,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2021-08-31 01:32:46,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 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 01:32:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2021-08-31 01:32:46,473 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2021-08-31 01:32:46,474 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2021-08-31 01:32:46,474 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 01:32:46,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2021-08-31 01:32:46,474 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:32:46,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:46,474 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:46,475 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 01:32:46,475 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-31 01:32:46,475 INFO L791 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~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;main_~c~0 := 0; 73#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 70#L12-2 [2021-08-31 01:32:46,475 INFO L793 eck$LassoCheckResult]: Loop: 70#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 70#L12-2 [2021-08-31 01:32:46,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:46,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-08-31 01:32:46,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:46,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832810847] [2021-08-31 01:32:46,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:46,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:46,484 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:46,489 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 01:32:46,491 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:46,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:46,491 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2021-08-31 01:32:46,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:46,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292134151] [2021-08-31 01:32:46,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:46,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:46,499 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:46,502 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:46,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:46,503 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2021-08-31 01:32:46,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:46,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264282489] [2021-08-31 01:32:46,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:46,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:46,509 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:46,516 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:46,560 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:46,561 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:46,561 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:46,561 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:46,561 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:46,561 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:46,561 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:46,561 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:46,561 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration2_Lasso [2021-08-31 01:32:46,561 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:46,562 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:46,565 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 01:32:46,567 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 01:32:46,569 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 01:32:46,581 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 01:32:46,583 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 01:32:46,586 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 01:32:46,588 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 01:32:46,634 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:46,634 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:46,634 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:46,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:46,636 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 01:32:46,637 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 01:32:46,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:46,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:46,660 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:46,660 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:46,678 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 01:32:46,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:46,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:46,679 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 01:32:46,680 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 01:32:46,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:46,681 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:46,703 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:46,703 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 01:32:46,721 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 01:32:46,721 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:46,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:46,722 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 01:32:46,723 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 01:32:46,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:46,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:46,757 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 01:32:46,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:46,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:46,758 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 01:32:46,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:46,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:46,784 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 01:32:46,799 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:46,803 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 01:32:46,804 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:46,804 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:46,804 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:46,804 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:46,804 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:46,804 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:46,804 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:46,804 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:46,804 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration2_Lasso [2021-08-31 01:32:46,804 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:46,804 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:46,805 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 01:32:46,809 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 01:32:46,810 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 01:32:46,812 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 01:32:46,814 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 01:32:46,821 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 01:32:46,823 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 01:32:46,877 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:46,878 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:46,878 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:46,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:46,879 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 01:32:46,880 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 01:32:46,881 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 01:32:46,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:46,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:46,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:46,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:46,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:46,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:46,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:46,948 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 01:32:46,949 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:46,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:46,949 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 01:32:46,953 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 01:32:46,954 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 01:32:46,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:46,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:46,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:46,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:46,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:46,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:46,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:46,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:46,979 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 01:32:46,979 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:46,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:46,980 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 01:32:46,981 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 01:32:46,982 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 01:32:46,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:46,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:46,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:46,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:46,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:46,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:46,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:46,991 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:47,007 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 01:32:47,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:47,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:47,008 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:47,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-31 01:32:47,020 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 01:32:47,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:47,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:47,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:47,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:47,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:47,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:47,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:47,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:47,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:47,047 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:47,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:47,048 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:47,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-31 01:32:47,050 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 01:32:47,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:47,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:47,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:47,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:47,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:47,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:47,085 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:47,093 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-08-31 01:32:47,093 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2021-08-31 01:32:47,094 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:47,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:47,110 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:47,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-31 01:32:47,112 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:47,133 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-31 01:32:47,133 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:47,133 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2147483648*ULTIMATE.start_main_~y~0 + 2147483647*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2021-08-31 01:32:47,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:47,153 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-08-31 01:32:47,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:47,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-31 01:32:47,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:47,189 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-31 01:32:47,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:47,189 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 01:32:47,190 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 01:32:47,190 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 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 01:32:47,215 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. 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 13 states and 18 transitions. Complement of second has 5 states. [2021-08-31 01:32:47,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:47,216 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 01:32:47,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-08-31 01:32:47,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2021-08-31 01:32:47,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:47,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2021-08-31 01:32:47,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:47,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2021-08-31 01:32:47,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:47,217 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2021-08-31 01:32:47,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:32:47,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2021-08-31 01:32:47,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-08-31 01:32:47,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-08-31 01:32:47,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2021-08-31 01:32:47,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:47,218 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2021-08-31 01:32:47,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2021-08-31 01:32:47,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2021-08-31 01:32:47,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:47,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-08-31 01:32:47,219 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-08-31 01:32:47,219 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-08-31 01:32:47,219 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 01:32:47,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2021-08-31 01:32:47,220 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:32:47,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:47,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:47,220 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2021-08-31 01:32:47,220 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-31 01:32:47,220 INFO L791 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~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;main_~c~0 := 0; 130#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 128#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 129#L12-3 main_~x~0 := main_~x~0 - 1; 131#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 127#L12-2 [2021-08-31 01:32:47,220 INFO L793 eck$LassoCheckResult]: Loop: 127#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 127#L12-2 [2021-08-31 01:32:47,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:47,221 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2021-08-31 01:32:47,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:47,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625628904] [2021-08-31 01:32:47,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:47,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:47,225 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:47,227 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:47,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:47,228 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2021-08-31 01:32:47,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:47,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108384006] [2021-08-31 01:32:47,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:47,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:47,230 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:47,232 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:47,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:47,232 INFO L82 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times [2021-08-31 01:32:47,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:47,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618143005] [2021-08-31 01:32:47,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:47,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:47,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:47,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:47,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618143005] [2021-08-31 01:32:47,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618143005] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:32:47,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473371226] [2021-08-31 01:32:47,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:47,270 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:32:47,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:47,271 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:32:47,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-08-31 01:32:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:47,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-31 01:32:47,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:47,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:47,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:32:47,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:47,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473371226] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:32:47,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:32:47,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-08-31 01:32:47,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572381833] [2021-08-31 01:32:47,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:47,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-31 01:32:47,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-08-31 01:32:47,403 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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 01:32:47,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:47,466 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2021-08-31 01:32:47,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-31 01:32:47,467 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 25 transitions. [2021-08-31 01:32:47,468 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:32:47,468 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 10 states and 12 transitions. [2021-08-31 01:32:47,468 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-08-31 01:32:47,468 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-08-31 01:32:47,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2021-08-31 01:32:47,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:47,469 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-08-31 01:32:47,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2021-08-31 01:32:47,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2021-08-31 01:32:47,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 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 01:32:47,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-08-31 01:32:47,470 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-08-31 01:32:47,470 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-08-31 01:32:47,470 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 01:32:47,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2021-08-31 01:32:47,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:32:47,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:47,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:47,471 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2021-08-31 01:32:47,471 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-31 01:32:47,471 INFO L791 eck$LassoCheckResult]: Stem: 213#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~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;main_~c~0 := 0; 211#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 209#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 210#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 215#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 214#L12-3 main_~x~0 := main_~x~0 - 1; 212#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 208#L12-2 [2021-08-31 01:32:47,471 INFO L793 eck$LassoCheckResult]: Loop: 208#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 208#L12-2 [2021-08-31 01:32:47,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:47,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1360231782, now seen corresponding path program 2 times [2021-08-31 01:32:47,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:47,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669975012] [2021-08-31 01:32:47,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:47,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:47,476 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:47,481 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:47,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:47,481 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 3 times [2021-08-31 01:32:47,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:47,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151607989] [2021-08-31 01:32:47,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:47,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:47,483 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:47,484 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:47,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:47,485 INFO L82 PathProgramCache]: Analyzing trace with hash 782487737, now seen corresponding path program 3 times [2021-08-31 01:32:47,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:47,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685886120] [2021-08-31 01:32:47,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:47,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:47,489 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:47,493 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:47,570 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:47,570 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:47,570 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:47,570 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:47,570 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:47,570 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:47,570 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:47,570 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:47,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration4_Lasso [2021-08-31 01:32:47,571 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:47,571 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:47,572 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 01:32:47,574 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 01:32:47,575 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 01:32:47,577 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 01:32:47,581 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 01:32:47,582 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 01:32:47,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:47,599 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 01:32:47,643 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:47,643 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:47,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:47,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:47,644 INFO L229 MonitoredProcess]: Starting monitored process 19 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 01:32:47,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-31 01:32:47,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:47,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:47,666 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:47,667 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 01:32:47,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:47,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:47,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:47,685 INFO L229 MonitoredProcess]: Starting monitored process 20 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 01:32:47,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:47,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:47,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-08-31 01:32:47,712 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:47,712 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 01:32:47,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:47,728 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:47,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:47,730 INFO L229 MonitoredProcess]: Starting monitored process 21 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 01:32:47,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-08-31 01:32:47,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:47,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:47,747 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:47,748 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 01:32:47,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:47,766 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:47,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:47,767 INFO L229 MonitoredProcess]: Starting monitored process 22 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 01:32:47,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-08-31 01:32:47,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:47,769 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:47,800 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:47,800 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:47,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:47,817 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:47,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:47,817 INFO L229 MonitoredProcess]: Starting monitored process 23 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 01:32:47,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-08-31 01:32:47,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:47,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:47,853 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:47,853 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:47,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:47,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:47,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:47,869 INFO L229 MonitoredProcess]: Starting monitored process 24 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 01:32:47,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-08-31 01:32:47,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:47,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:47,878 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:47,878 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:47,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:47,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:47,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:47,896 INFO L229 MonitoredProcess]: Starting monitored process 25 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 01:32:47,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-08-31 01:32:47,898 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:47,898 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:47,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-08-31 01:32:47,942 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:47,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:47,943 INFO L229 MonitoredProcess]: Starting monitored process 26 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 01:32:47,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-08-31 01:32:47,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:47,945 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:47,979 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:47,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-08-31 01:32:47,982 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:47,982 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:47,982 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:47,982 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:47,982 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:47,982 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:47,982 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:47,982 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:47,982 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration4_Lasso [2021-08-31 01:32:47,982 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:47,982 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:47,983 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 01:32:47,998 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 01:32:48,009 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 01:32:48,010 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 01:32:48,012 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 01:32:48,019 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 01:32:48,021 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 01:32:48,059 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:48,059 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:48,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:48,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:48,085 INFO L229 MonitoredProcess]: Starting monitored process 27 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 01:32:48,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-08-31 01:32:48,125 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 01:32:48,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:48,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:48,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:48,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:48,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:48,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:48,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:48,133 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:48,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:48,162 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:48,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:48,163 INFO L229 MonitoredProcess]: Starting monitored process 28 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 01:32:48,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-08-31 01:32:48,165 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 01:32:48,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:48,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:48,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:48,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:48,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:48,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:48,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:48,187 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:48,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:48,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:48,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:48,204 INFO L229 MonitoredProcess]: Starting monitored process 29 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 01:32:48,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-08-31 01:32:48,206 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 01:32:48,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:48,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:48,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:48,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:48,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:48,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:48,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:48,227 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:48,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:48,251 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:48,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:48,252 INFO L229 MonitoredProcess]: Starting monitored process 30 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 01:32:48,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-08-31 01:32:48,254 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 01:32:48,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:48,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:48,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:48,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:48,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:48,277 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:48,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:48,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:48,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:48,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:48,304 INFO L229 MonitoredProcess]: Starting monitored process 31 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 01:32:48,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-08-31 01:32:48,306 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 01:32:48,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:48,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:48,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:48,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:48,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:48,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:48,332 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:48,345 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:48,345 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:32:48,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:48,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:48,362 INFO L229 MonitoredProcess]: Starting monitored process 32 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 01:32:48,364 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:48,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-08-31 01:32:48,377 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-31 01:32:48,377 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:48,377 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2021-08-31 01:32:48,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:48,403 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-08-31 01:32:48,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:48,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-31 01:32:48,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:48,440 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-31 01:32:48,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:48,441 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 01:32:48,441 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 01:32:48,441 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 01:32:48,458 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 15 states and 19 transitions. Complement of second has 5 states. [2021-08-31 01:32:48,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:48,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 01:32:48,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-08-31 01:32:48,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2021-08-31 01:32:48,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:48,460 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-31 01:32:48,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:48,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-31 01:32:48,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:48,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:48,511 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-31 01:32:48,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:48,511 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 01:32:48,512 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-08-31 01:32:48,512 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 01:32:48,533 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 15 states and 19 transitions. Complement of second has 5 states. [2021-08-31 01:32:48,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:48,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 01:32:48,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-08-31 01:32:48,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2021-08-31 01:32:48,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:48,534 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-31 01:32:48,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:48,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-31 01:32:48,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:48,564 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-31 01:32:48,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:48,565 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 01:32:48,565 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-08-31 01:32:48,565 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 01:32:48,583 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 11 states and 13 transitions. Complement of second has 4 states. [2021-08-31 01:32:48,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:48,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 01:32:48,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-08-31 01:32:48,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2021-08-31 01:32:48,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:48,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 1 letters. [2021-08-31 01:32:48,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:48,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2021-08-31 01:32:48,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:48,584 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-08-31 01:32:48,585 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 01:32:48,585 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2021-08-31 01:32:48,585 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 01:32:48,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 01:32:48,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 01:32:48,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 01:32:48,585 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:32:48,585 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:32:48,585 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:32:48,585 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-31 01:32:48,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 01:32:48,585 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 01:32:48,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 01:32:48,587 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 01:32:48,589 INFO L158 Benchmark]: Toolchain (without parser) took 3474.66ms. Allocated memory was 50.3MB in the beginning and 77.6MB in the end (delta: 27.3MB). Free memory was 26.3MB in the beginning and 49.7MB in the end (delta: -23.3MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2021-08-31 01:32:48,589 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 32.5MB in the beginning and 32.5MB in the end (delta: 51.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:32:48,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.09ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.1MB in the beginning and 39.3MB in the end (delta: -13.2MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2021-08-31 01:32:48,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.89ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 38.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:32:48,590 INFO L158 Benchmark]: Boogie Preprocessor took 43.95ms. Allocated memory is still 60.8MB. Free memory was 38.0MB in the beginning and 44.6MB in the end (delta: -6.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 01:32:48,590 INFO L158 Benchmark]: RCFGBuilder took 172.15ms. Allocated memory is still 60.8MB. Free memory was 44.4MB in the beginning and 37.2MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-31 01:32:48,590 INFO L158 Benchmark]: BuchiAutomizer took 3082.99ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 37.1MB in the beginning and 49.7MB in the end (delta: -12.6MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2021-08-31 01:32:48,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 32.5MB in the beginning and 32.5MB in the end (delta: 51.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 152.09ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.1MB in the beginning and 39.3MB in the end (delta: -13.2MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.89ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 38.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.95ms. Allocated memory is still 60.8MB. Free memory was 38.0MB in the beginning and 44.6MB in the end (delta: -6.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 172.15ms. Allocated memory is still 60.8MB. Free memory was 44.4MB in the beginning and 37.2MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3082.99ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 37.1MB in the beginning and 49.7MB in the end (delta: -12.6MB). Peak memory consumption was 4.6MB. 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 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -2147483648 * y + 2147483647 * x and consists of 3 locations. One nondeterministic module has affine ranking function 2147483647 + -2 * y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 10 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 01:32:48,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:48,827 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...