./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.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 d1222cbe619907da17220c6769d95d8d6fd1064c ........................................................................................................................................................................................................................................................................................................................................................................................................ 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 01:17:02,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 01:17:02,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 01:17:02,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 01:17:02,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 01:17:02,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 01:17:02,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 01:17:02,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 01:17:02,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 01:17:02,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 01:17:02,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 01:17:02,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 01:17:02,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 01:17:02,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 01:17:02,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 01:17:02,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 01:17:02,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 01:17:02,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 01:17:02,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 01:17:02,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 01:17:02,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 01:17:02,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 01:17:02,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 01:17:02,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 01:17:02,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 01:17:02,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 01:17:02,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 01:17:02,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 01:17:02,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 01:17:02,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 01:17:02,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 01:17:02,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 01:17:02,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 01:17:02,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 01:17:02,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 01:17:02,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 01:17:02,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 01:17:02,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 01:17:02,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 01:17:02,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 01:17:02,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 01:17:02,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-31 01:17:02,559 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 01:17:02,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 01:17:02,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 01:17:02,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 01:17:02,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 01:17:02,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 01:17:02,563 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 01:17:02,563 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 01:17:02,563 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 01:17:02,563 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 01:17:02,564 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 01:17:02,564 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 01:17:02,564 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 01:17:02,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 01:17:02,565 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 01:17:02,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 01:17:02,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 01:17:02,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 01:17:02,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 01:17:02,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 01:17:02,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 01:17:02,566 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 01:17:02,566 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 01:17:02,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 01:17:02,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 01:17:02,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 01:17:02,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 01:17:02,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 01:17:02,567 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 01:17:02,568 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 01:17:02,568 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1222cbe619907da17220c6769d95d8d6fd1064c [2021-08-31 01:17:02,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 01:17:02,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 01:17:02,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 01:17:02,895 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 01:17:02,897 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 01:17:02,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c [2021-08-31 01:17:02,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a4ef234f/ff795c9cea4a4fbc8d8e2be958a0680d/FLAG1922f31d3 [2021-08-31 01:17:03,420 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 01:17:03,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c [2021-08-31 01:17:03,426 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a4ef234f/ff795c9cea4a4fbc8d8e2be958a0680d/FLAG1922f31d3 [2021-08-31 01:17:03,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a4ef234f/ff795c9cea4a4fbc8d8e2be958a0680d [2021-08-31 01:17:03,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 01:17:03,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 01:17:03,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 01:17:03,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 01:17:03,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 01:17:03,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:17:03" (1/1) ... [2021-08-31 01:17:03,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@332b9874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:17:03, skipping insertion in model container [2021-08-31 01:17:03,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:17:03" (1/1) ... [2021-08-31 01:17:03,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 01:17:03,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 01:17:03,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:17:03,604 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 01:17:03,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:17:03,626 INFO L208 MainTranslator]: Completed translation [2021-08-31 01:17:03,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:17:03 WrapperNode [2021-08-31 01:17:03,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 01:17:03,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 01:17:03,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 01:17:03,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 01:17:03,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:17:03" (1/1) ... [2021-08-31 01:17:03,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:17:03" (1/1) ... [2021-08-31 01:17:03,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 01:17:03,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 01:17:03,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 01:17:03,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 01:17:03,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:17:03" (1/1) ... [2021-08-31 01:17:03,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:17:03" (1/1) ... [2021-08-31 01:17:03,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:17:03" (1/1) ... [2021-08-31 01:17:03,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:17:03" (1/1) ... [2021-08-31 01:17:03,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:17:03" (1/1) ... [2021-08-31 01:17:03,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:17:03" (1/1) ... [2021-08-31 01:17:03,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:17:03" (1/1) ... [2021-08-31 01:17:03,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 01:17:03,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 01:17:03,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 01:17:03,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 01:17:03,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:17:03" (1/1) ... [2021-08-31 01:17:03,675 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:17:03,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:17:03,702 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 01:17:03,718 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 01:17:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 01:17:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 01:17:03,834 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 01:17:03,834 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-08-31 01:17:03,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:17:03 BoogieIcfgContainer [2021-08-31 01:17:03,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 01:17:03,837 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 01:17:03,837 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 01:17:03,840 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 01:17:03,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:17:03,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 01:17:03" (1/3) ... [2021-08-31 01:17:03,843 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36bb3867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:17:03, skipping insertion in model container [2021-08-31 01:17:03,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:17:03,844 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:17:03" (2/3) ... [2021-08-31 01:17:03,844 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36bb3867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:17:03, skipping insertion in model container [2021-08-31 01:17:03,844 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:17:03,844 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:17:03" (3/3) ... [2021-08-31 01:17:03,845 INFO L389 chiAutomizerObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig3.c [2021-08-31 01:17:03,903 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 01:17:03,904 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 01:17:03,904 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 01:17:03,904 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 01:17:03,905 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 01:17:03,905 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 01:17:03,905 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 01:17:03,906 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 01:17:03,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) 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 01:17:03,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-31 01:17:03,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:17:03,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:17:03,935 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 01:17:03,935 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-31 01:17:03,935 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 01:17:03,936 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) 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 01:17:03,937 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-31 01:17:03,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:17:03,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:17:03,937 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 01:17:03,938 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-31 01:17:03,945 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue ~x~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2;~x~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L14-1true [2021-08-31 01:17:03,945 INFO L793 eck$LassoCheckResult]: Loop: 9#L14-1true assume !!(~x~0 > 0); 5#L23true assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;havoc foo_#t~post0;foo_#t~post0 := ~x~0;~x~0 := foo_#t~post0 - 1;havoc foo_#t~post0; 9#L14-1true [2021-08-31 01:17:03,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:17:03,949 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-31 01:17:03,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:17:03,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234118704] [2021-08-31 01:17:03,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:17:03,963 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:17:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:17:04,023 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:17:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:17:04,049 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:17:04,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:17:04,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 1 times [2021-08-31 01:17:04,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:17:04,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082141324] [2021-08-31 01:17:04,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:17:04,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:17:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:17:04,065 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:17:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:17:04,081 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:17:04,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:17:04,083 INFO L82 PathProgramCache]: Analyzing trace with hash 925801, now seen corresponding path program 1 times [2021-08-31 01:17:04,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:17:04,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077100714] [2021-08-31 01:17:04,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:17:04,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:17:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:17:04,092 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:17:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:17:04,103 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:17:04,210 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:17:04,210 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:17:04,211 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:17:04,211 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:17:04,211 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:17:04,211 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:17:04,211 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:17:04,212 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:17:04,212 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig3.c_Iteration1_Loop [2021-08-31 01:17:04,212 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:17:04,212 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:17:04,224 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 01:17:04,229 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 01:17:04,236 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 01:17:04,273 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:17:04,274 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:17:04,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:17:04,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:17:04,277 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 01:17:04,278 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 01:17:04,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:17:04,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:17:04,319 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:17:04,320 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_foo_#t~post0=0} Honda state: {ULTIMATE.start_foo_#t~post0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:17:04,365 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 01:17:04,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:17:04,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:17:04,380 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 01:17:04,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:17:04,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:17:04,409 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 01:17:04,455 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 01:17:04,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:17:04,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:17:04,456 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 01:17:04,457 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 01:17:04,459 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:17:04,459 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:17:04,504 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:17:04,510 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 01:17:04,511 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:17:04,511 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:17:04,511 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:17:04,511 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:17:04,511 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:17:04,511 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:17:04,511 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:17:04,511 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:17:04,511 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig3.c_Iteration1_Loop [2021-08-31 01:17:04,512 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:17:04,512 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:17:04,513 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 01:17:04,516 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 01:17:04,523 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 01:17:04,554 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:17:04,558 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:17:04,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:17:04,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:17:04,565 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 01:17:04,568 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 01:17:04,568 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 01:17:04,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:17:04,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:17:04,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:17:04,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:17:04,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:17:04,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:17:04,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:17:04,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:17:04,606 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 01:17:04,606 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:17:04,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:17:04,609 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 01:17:04,620 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 01:17:04,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:17:04,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:17:04,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:17:04,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:17:04,628 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:17:04,629 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:17:04,630 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:17:04,632 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 01:17:04,644 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:17:04,650 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:17:04,651 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-31 01:17:04,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:17:04,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:17:04,653 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 01:17:04,655 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 01:17:04,656 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:17:04,656 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:17:04,656 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:17:04,656 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~x~0) = 1*~x~0 Supporting invariants [] [2021-08-31 01:17:04,676 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 01:17:04,678 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:17:04,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:17:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:17:04,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:17:04,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:17:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:17:04,717 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:17:04,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:17:04,734 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 01:17:04,757 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 01:17:04,758 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:17:04,794 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 23 transitions. Complement of second has 7 states. [2021-08-31 01:17:04,795 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 01:17:04,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:17:04,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2021-08-31 01:17:04,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 2 letters. [2021-08-31 01:17:04,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:17:04,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 4 letters. Loop has 2 letters. [2021-08-31 01:17:04,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:17:04,802 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 4 letters. [2021-08-31 01:17:04,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:17:04,802 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2021-08-31 01:17:04,804 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 01:17:04,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2021-08-31 01:17:04,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 01:17:04,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 01:17:04,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 01:17:04,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 01:17:04,808 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:17:04,808 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:17:04,808 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:17:04,808 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 01:17:04,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 01:17:04,808 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 01:17:04,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 01:17:04,811 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 01:17:04,814 INFO L158 Benchmark]: Toolchain (without parser) took 1363.34ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.3MB in the beginning and 34.8MB in the end (delta: -2.5MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2021-08-31 01:17:04,814 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 54.5MB. Free memory was 37.5MB in the beginning and 37.5MB in the end (delta: 37.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:17:04,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.98ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 37.4MB in the end (delta: -5.4MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2021-08-31 01:17:04,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.34ms. Allocated memory is still 54.5MB. Free memory was 37.4MB in the beginning and 36.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:17:04,816 INFO L158 Benchmark]: Boogie Preprocessor took 13.30ms. Allocated memory is still 54.5MB. Free memory was 36.2MB in the beginning and 35.3MB in the end (delta: 933.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 01:17:04,816 INFO L158 Benchmark]: RCFGBuilder took 168.11ms. Allocated memory is still 54.5MB. Free memory was 35.3MB in the beginning and 28.1MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-31 01:17:04,817 INFO L158 Benchmark]: BuchiAutomizer took 974.95ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 27.9MB in the beginning and 34.8MB in the end (delta: -6.8MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2021-08-31 01:17:04,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 54.5MB. Free memory was 37.5MB in the beginning and 37.5MB in the end (delta: 37.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 175.98ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 37.4MB in the end (delta: -5.4MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.34ms. Allocated memory is still 54.5MB. Free memory was 37.4MB in the beginning and 36.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.30ms. Allocated memory is still 54.5MB. Free memory was 36.2MB in the beginning and 35.3MB in the end (delta: 933.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 168.11ms. Allocated memory is still 54.5MB. Free memory was 35.3MB in the beginning and 28.1MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 974.95ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 27.9MB in the beginning and 34.8MB in the end (delta: -6.8MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 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 01:17:04,847 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 01:17:05,061 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...