/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_rmo.oepc.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b981219
[2020-04-18 02:27:21,550 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-04-18 02:27:21,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-18 02:27:21,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-18 02:27:21,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-18 02:27:21,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-18 02:27:21,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-18 02:27:21,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-04-18 02:27:21,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-04-18 02:27:21,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-04-18 02:27:21,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-04-18 02:27:21,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-04-18 02:27:21,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-04-18 02:27:21,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-18 02:27:21,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-18 02:27:21,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-18 02:27:21,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-18 02:27:21,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-18 02:27:21,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-18 02:27:21,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-18 02:27:21,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-18 02:27:21,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-18 02:27:21,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-04-18 02:27:21,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-18 02:27:21,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-04-18 02:27:21,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-04-18 02:27:21,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-18 02:27:21,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-04-18 02:27:21,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-04-18 02:27:21,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-04-18 02:27:21,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-04-18 02:27:21,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-04-18 02:27:21,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-04-18 02:27:21,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-04-18 02:27:21,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-04-18 02:27:21,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-04-18 02:27:21,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-04-18 02:27:21,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-04-18 02:27:21,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-04-18 02:27:21,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-04-18 02:27:21,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-04-18 02:27:21,631 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf
[2020-04-18 02:27:21,661 INFO L113 SettingsManager]: Loading preferences was successful
[2020-04-18 02:27:21,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-18 02:27:21,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-18 02:27:21,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-04-18 02:27:21,666 INFO L138 SettingsManager]: * Use SBE=true
[2020-04-18 02:27:21,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-18 02:27:21,667 INFO L138 SettingsManager]: * sizeof long=4
[2020-04-18 02:27:21,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-04-18 02:27:21,667 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-04-18 02:27:21,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-04-18 02:27:21,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-04-18 02:27:21,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-18 02:27:21,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-04-18 02:27:21,669 INFO L138 SettingsManager]: * sizeof long double=12
[2020-04-18 02:27:21,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-04-18 02:27:21,670 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-04-18 02:27:21,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-04-18 02:27:21,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-18 02:27:21,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-04-18 02:27:21,672 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-04-18 02:27:21,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-04-18 02:27:21,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-18 02:27:21,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-18 02:27:21,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-04-18 02:27:21,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-18 02:27:21,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-04-18 02:27:21,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-18 02:27:21,675 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2020-04-18 02:27:21,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-18 02:27:21,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-18 02:27:21,940 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-18 02:27:21,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-18 02:27:21,957 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-18 02:27:21,958 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-04-18 02:27:21,958 INFO L275 PluginConnector]: CDTParser initialized
[2020-04-18 02:27:21,959 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_rmo.oepc.i
[2020-04-18 02:27:22,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3aacb834/a28abc39fc664e41988df826600be108/FLAGb15f5a577
[2020-04-18 02:27:22,563 INFO L306 CDTParser]: Found 1 translation units.
[2020-04-18 02:27:22,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_rmo.oepc.i
[2020-04-18 02:27:22,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3aacb834/a28abc39fc664e41988df826600be108/FLAGb15f5a577
[2020-04-18 02:27:22,890 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3aacb834/a28abc39fc664e41988df826600be108
[2020-04-18 02:27:22,898 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-18 02:27:22,919 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-18 02:27:22,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-18 02:27:22,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-18 02:27:22,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-18 02:27:22,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:27:22" (1/1) ...
[2020-04-18 02:27:22,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345d8b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:27:22, skipping insertion in model container
[2020-04-18 02:27:22,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:27:22" (1/1) ...
[2020-04-18 02:27:22,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-04-18 02:27:22,977 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-04-18 02:27:23,533 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 02:27:23,546 INFO L203 MainTranslator]: Completed pre-run
[2020-04-18 02:27:23,611 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-18 02:27:23,688 INFO L208 MainTranslator]: Completed translation
[2020-04-18 02:27:23,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:27:23 WrapperNode
[2020-04-18 02:27:23,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-18 02:27:23,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-18 02:27:23,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-18 02:27:23,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-18 02:27:23,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:27:23" (1/1) ...
[2020-04-18 02:27:23,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:27:23" (1/1) ...
[2020-04-18 02:27:23,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-18 02:27:23,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-18 02:27:23,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-18 02:27:23,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-04-18 02:27:23,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:27:23" (1/1) ...
[2020-04-18 02:27:23,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:27:23" (1/1) ...
[2020-04-18 02:27:23,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:27:23" (1/1) ...
[2020-04-18 02:27:23,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:27:23" (1/1) ...
[2020-04-18 02:27:23,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:27:23" (1/1) ...
[2020-04-18 02:27:23,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:27:23" (1/1) ...
[2020-04-18 02:27:23,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:27:23" (1/1) ...
[2020-04-18 02:27:23,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-18 02:27:23,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-18 02:27:23,806 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-04-18 02:27:23,807 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-04-18 02:27:23,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:27:23" (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
[2020-04-18 02:27:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-04-18 02:27:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-04-18 02:27:23,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-04-18 02:27:23,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-18 02:27:23,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-18 02:27:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-04-18 02:27:23,923 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-04-18 02:27:23,924 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-04-18 02:27:23,924 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-04-18 02:27:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-04-18 02:27:23,925 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-04-18 02:27:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-04-18 02:27:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-04-18 02:27:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-18 02:27:23,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-18 02:27:23,929 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
Received shutdown request...
[2020-04-18 02:31:20,195 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder. Reason: Timeout or Toolchain cancelled by user
[2020-04-18 02:31:20,199 INFO L168 Benchmark]: Toolchain (without parser) took 237297.93 ms. Allocated memory was 144.7 MB in the beginning and 4.3 GB in the end (delta: 4.2 GB). Free memory was 103.8 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 4.5 GB. Max. memory is 7.1 GB.
[2020-04-18 02:31:20,200 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 144.7 MB. Free memory was 123.8 MB in the beginning and 123.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-04-18 02:31:20,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.20 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 102.1 MB in the beginning and 158.3 MB in the end (delta: -56.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB.
[2020-04-18 02:31:20,202 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.24 ms. Allocated memory is still 205.0 MB. Free memory was 158.3 MB in the beginning and 155.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB.
[2020-04-18 02:31:20,203 INFO L168 Benchmark]: Boogie Preprocessor took 51.82 ms. Allocated memory is still 205.0 MB. Free memory was 155.6 MB in the beginning and 153.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-04-18 02:31:20,205 INFO L168 Benchmark]: RCFGBuilder took 236389.93 ms. Allocated memory was 205.0 MB in the beginning and 4.3 GB in the end (delta: 4.1 GB). Free memory was 153.6 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 4.5 GB. Max. memory is 7.1 GB.
[2020-04-18 02:31:20,210 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.17 ms. Allocated memory is still 144.7 MB. Free memory was 123.8 MB in the beginning and 123.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 769.20 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 102.1 MB in the beginning and 158.3 MB in the end (delta: -56.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 64.24 ms. Allocated memory is still 205.0 MB. Free memory was 158.3 MB in the beginning and 155.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 51.82 ms. Allocated memory is still 205.0 MB. Free memory was 155.6 MB in the beginning and 153.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 236389.93 ms. Allocated memory was 205.0 MB in the beginning and 4.3 GB in the end (delta: 4.1 GB). Free memory was 153.6 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 4.5 GB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder:
- TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder)
Toolchain cancelled while XnfDer was eliminating 1 quantified variables from 1 xjuncts.
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown