java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/simple_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f3d0b09 [2019-08-08 11:46:13,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-08 11:46:13,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-08 11:46:13,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-08 11:46:13,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-08 11:46:13,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-08 11:46:13,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-08 11:46:13,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-08 11:46:13,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-08 11:46:13,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-08 11:46:13,662 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-08 11:46:13,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-08 11:46:13,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-08 11:46:13,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-08 11:46:13,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-08 11:46:13,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-08 11:46:13,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-08 11:46:13,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-08 11:46:13,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-08 11:46:13,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-08 11:46:13,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-08 11:46:13,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-08 11:46:13,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-08 11:46:13,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-08 11:46:13,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-08 11:46:13,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-08 11:46:13,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-08 11:46:13,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-08 11:46:13,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-08 11:46:13,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-08 11:46:13,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-08 11:46:13,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-08 11:46:13,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-08 11:46:13,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-08 11:46:13,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-08 11:46:13,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-08 11:46:13,699 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-08-08 11:46:13,713 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-08 11:46:13,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-08 11:46:13,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-08 11:46:13,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-08 11:46:13,715 INFO L138 SettingsManager]: * Use SBE=true [2019-08-08 11:46:13,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-08 11:46:13,716 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-08 11:46:13,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-08 11:46:13,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-08 11:46:13,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-08 11:46:13,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-08 11:46:13,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-08 11:46:13,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-08 11:46:13,717 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-08 11:46:13,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-08 11:46:13,719 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-08 11:46:13,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-08 11:46:13,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-08 11:46:13,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-08 11:46:13,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-08 11:46:13,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-08 11:46:13,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-08 11:46:13,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-08 11:46:13,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-08 11:46:13,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-08 11:46:13,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-08 11:46:13,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-08 11:46:13,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-08 11:46:13,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-08 11:46:13,767 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-08 11:46:13,783 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-08 11:46:13,788 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-08 11:46:13,790 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-08 11:46:13,790 INFO L275 PluginConnector]: CDTParser initialized [2019-08-08 11:46:13,791 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_2-2.c [2019-08-08 11:46:13,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05addc491/bcaa33fb459547eab1f7e5d8a7e255da/FLAG6fd8f3fa2 [2019-08-08 11:46:14,291 INFO L306 CDTParser]: Found 1 translation units. [2019-08-08 11:46:14,291 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_2-2.c [2019-08-08 11:46:14,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05addc491/bcaa33fb459547eab1f7e5d8a7e255da/FLAG6fd8f3fa2 [2019-08-08 11:46:14,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05addc491/bcaa33fb459547eab1f7e5d8a7e255da [2019-08-08 11:46:14,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-08 11:46:14,719 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-08 11:46:14,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-08 11:46:14,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-08 11:46:14,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-08 11:46:14,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:14,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d08efe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14, skipping insertion in model container [2019-08-08 11:46:14,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:14,736 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-08 11:46:14,756 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-08 11:46:14,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:46:14,945 INFO L188 MainTranslator]: Completed pre-run [2019-08-08 11:46:14,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:46:14,980 INFO L192 MainTranslator]: Completed translation [2019-08-08 11:46:14,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14 WrapperNode [2019-08-08 11:46:14,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-08 11:46:14,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-08 11:46:14,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-08 11:46:14,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-08 11:46:15,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:15,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:15,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:15,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:15,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:15,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:15,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... [2019-08-08 11:46:15,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-08 11:46:15,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-08 11:46:15,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-08 11:46:15,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-08 11:46:15,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:46:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-08 11:46:15,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-08 11:46:15,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-08 11:46:15,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-08 11:46:15,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-08 11:46:15,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-08 11:46:15,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-08-08 11:46:15,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-08 11:46:15,141 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-08 11:46:15,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-08 11:46:15,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-08 11:46:15,325 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-08 11:46:15,326 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-08 11:46:15,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:46:15 BoogieIcfgContainer [2019-08-08 11:46:15,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-08 11:46:15,327 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-08 11:46:15,328 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-08 11:46:15,328 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-08 11:46:15,329 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:46:15" (1/1) ... [2019-08-08 11:46:15,339 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-08 11:46:15,342 INFO L155 IcfgInterpreter]: Building call graph [2019-08-08 11:46:15,348 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-08 11:46:15,355 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-08 11:46:15,356 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-08 11:46:15,390 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-08 11:46:15,411 INFO L185 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 18 [2019-08-08 11:46:15,417 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-08 11:46:15,417 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-08 11:46:15,420 INFO L179 IcfgInterpreter]: Location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 21#(and (exists ((v_main_~x~0_BEFORE_CALL_1 Int)) (and (not (< (mod v_main_~x~0_BEFORE_CALL_1 4294967296) 268435455)) (< (mod (+ v_main_~x~0_BEFORE_CALL_1 4294967295) 4294967296) 268435455) (= |__VERIFIER_assert_#in~cond| (ite (< 268435455 (mod v_main_~x~0_BEFORE_CALL_1 4294967296)) 1 0)))) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-08-08 11:46:15,421 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-08 11:46:15,429 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-08 11:46:15,432 INFO L168 Benchmark]: Toolchain (without parser) took 711.58 ms. Allocated memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: 67.6 MB). Free memory was 85.4 MB in the beginning and 158.0 MB in the end (delta: -72.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-08 11:46:15,433 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 130.0 MB. Free memory was 104.1 MB in the beginning and 103.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-08 11:46:15,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.11 ms. Allocated memory is still 130.0 MB. Free memory was 85.2 MB in the beginning and 76.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-08-08 11:46:15,435 INFO L168 Benchmark]: Boogie Preprocessor took 112.15 ms. Allocated memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: 67.6 MB). Free memory was 76.2 MB in the beginning and 174.4 MB in the end (delta: -98.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-08-08 11:46:15,436 INFO L168 Benchmark]: RCFGBuilder took 233.77 ms. Allocated memory is still 197.7 MB. Free memory was 174.4 MB in the beginning and 163.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-08-08 11:46:15,437 INFO L168 Benchmark]: Symbolic Interpretation took 101.38 ms. Allocated memory is still 197.7 MB. Free memory was 163.1 MB in the beginning and 158.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-08-08 11:46:15,441 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Interpreter reached this location of interest. Location might be reachable.. Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 130.0 MB. Free memory was 104.1 MB in the beginning and 103.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 260.11 ms. Allocated memory is still 130.0 MB. Free memory was 85.2 MB in the beginning and 76.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.15 ms. Allocated memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: 67.6 MB). Free memory was 76.2 MB in the beginning and 174.4 MB in the end (delta: -98.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 233.77 ms. Allocated memory is still 197.7 MB. Free memory was 174.4 MB in the beginning and 163.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 101.38 ms. Allocated memory is still 197.7 MB. Free memory was 163.1 MB in the beginning and 158.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...