./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-flags-simp1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-flags-simp1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e232a229fd97a588b0965972f35cc759d5e34261 ........................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-flags-simp1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e232a229fd97a588b0965972f35cc759d5e34261 ...................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: not yet supported float operation signbit --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:01:12,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:01:12,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:01:12,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:01:12,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:01:12,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:01:12,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:01:12,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:01:12,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:01:12,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:01:12,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:01:12,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:01:12,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:01:12,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:01:12,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:01:12,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:01:12,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:01:12,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:01:12,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:01:12,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:01:12,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:01:12,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:01:12,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:01:12,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:01:12,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:01:12,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:01:12,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:01:12,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:01:12,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:01:12,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:01:12,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:01:12,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:01:12,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:01:12,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:01:12,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:01:12,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:01:12,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:01:12,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:01:12,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:01:12,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:01:12,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:01:12,719 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:01:12,775 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:01:12,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:01:12,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:01:12,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:01:12,778 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:01:12,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:01:12,779 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:01:12,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:01:12,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:01:12,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:01:12,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:01:12,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:01:12,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:01:12,782 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:01:12,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:01:12,782 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:01:12,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:01:12,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:01:12,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:01:12,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:01:12,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:01:12,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:01:12,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:01:12,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:01:12,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:01:12,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:01:12,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:01:12,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:01:12,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:01:12,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e232a229fd97a588b0965972f35cc759d5e34261 [2020-11-29 22:01:13,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:01:13,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:01:13,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:01:13,190 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:01:13,191 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:01:13,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-flags-simp1.i [2020-11-29 22:01:13,282 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/data/6f97128d8/43f2b4f654824479bf0163e7f7bc90fd/FLAG31d03b6e8 [2020-11-29 22:01:14,172 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:01:14,172 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/sv-benchmarks/c/floats-cbmc-regression/float-flags-simp1.i [2020-11-29 22:01:14,191 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/data/6f97128d8/43f2b4f654824479bf0163e7f7bc90fd/FLAG31d03b6e8 [2020-11-29 22:01:14,358 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/data/6f97128d8/43f2b4f654824479bf0163e7f7bc90fd [2020-11-29 22:01:14,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:01:14,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:01:14,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:01:14,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:01:14,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:01:14,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:01:14" (1/1) ... [2020-11-29 22:01:14,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f6c8a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:01:14, skipping insertion in model container [2020-11-29 22:01:14,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:01:14" (1/1) ... [2020-11-29 22:01:14,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:01:14,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:01:15,246 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1690) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1080) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:705) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1569) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1045) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1423) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) 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) [2020-11-29 22:01:15,253 INFO L168 Benchmark]: Toolchain (without parser) took 889.16 ms. Allocated memory is still 107.0 MB. Free memory was 77.0 MB in the beginning and 81.2 MB in the end (delta: -4.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:01:15,254 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 107.0 MB. Free memory is still 63.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:01:15,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 873.77 ms. Allocated memory is still 107.0 MB. Free memory was 76.8 MB in the beginning and 81.2 MB in the end (delta: -4.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:01:15,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 107.0 MB. Free memory is still 63.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 873.77 ms. Allocated memory is still 107.0 MB. Free memory was 76.8 MB in the beginning and 81.2 MB in the end (delta: -4.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:01:18,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:01:18,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:01:18,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:01:18,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:01:18,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:01:18,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:01:18,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:01:18,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:01:18,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:01:18,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:01:18,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:01:18,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:01:18,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:01:18,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:01:18,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:01:18,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:01:18,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:01:18,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:01:18,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:01:18,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:01:18,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:01:18,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:01:18,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:01:18,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:01:18,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:01:18,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:01:18,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:01:18,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:01:18,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:01:18,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:01:18,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:01:18,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:01:18,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:01:18,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:01:18,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:01:18,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:01:18,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:01:18,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:01:18,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:01:18,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:01:18,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 22:01:18,363 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:01:18,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:01:18,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:01:18,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:01:18,366 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:01:18,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:01:18,367 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:01:18,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:01:18,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:01:18,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:01:18,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:01:18,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:01:18,368 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 22:01:18,369 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 22:01:18,369 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:01:18,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:01:18,370 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:01:18,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:01:18,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:01:18,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:01:18,371 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:01:18,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:01:18,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:01:18,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:01:18,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:01:18,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:01:18,372 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 22:01:18,373 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 22:01:18,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:01:18,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:01:18,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 22:01:18,374 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e232a229fd97a588b0965972f35cc759d5e34261 [2020-11-29 22:01:18,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:01:18,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:01:18,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:01:18,871 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:01:18,872 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:01:18,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-flags-simp1.i [2020-11-29 22:01:18,972 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/data/f8822cfd2/f2139255f848452b96dc4f9834d94982/FLAGe997c8bcb [2020-11-29 22:01:19,883 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:01:19,883 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/sv-benchmarks/c/floats-cbmc-regression/float-flags-simp1.i [2020-11-29 22:01:19,906 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/data/f8822cfd2/f2139255f848452b96dc4f9834d94982/FLAGe997c8bcb [2020-11-29 22:01:20,074 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_50e0d319-6a4f-43d1-acde-b71f55bbde8c/bin/uautomizer/data/f8822cfd2/f2139255f848452b96dc4f9834d94982 [2020-11-29 22:01:20,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:01:20,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:01:20,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:01:20,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:01:20,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:01:20,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:01:20" (1/1) ... [2020-11-29 22:01:20,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b9be1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:01:20, skipping insertion in model container [2020-11-29 22:01:20,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:01:20" (1/1) ... [2020-11-29 22:01:20,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:01:20,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:01:21,158 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: not yet supported float operation signbit at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOtherUnaryFloatOperation(BitvectorTranslation.java:1143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1690) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1080) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1569) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1045) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1423) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) 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) [2020-11-29 22:01:21,176 INFO L168 Benchmark]: Toolchain (without parser) took 1096.22 ms. Allocated memory is still 52.4 MB. Free memory was 27.0 MB in the beginning and 29.1 MB in the end (delta: -2.1 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:01:21,177 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 52.4 MB. Free memory was 34.2 MB in the beginning and 34.1 MB in the end (delta: 23.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:01:21,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1089.70 ms. Allocated memory is still 52.4 MB. Free memory was 26.8 MB in the beginning and 29.1 MB in the end (delta: -2.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:01:21,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 52.4 MB. Free memory was 34.2 MB in the beginning and 34.1 MB in the end (delta: 23.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1089.70 ms. Allocated memory is still 52.4 MB. Free memory was 26.8 MB in the beginning and 29.1 MB in the end (delta: -2.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: not yet supported float operation signbit de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: not yet supported float operation signbit: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOtherUnaryFloatOperation(BitvectorTranslation.java:1143) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...