java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AbstractInterpretationCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label43_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 13:20:33,753 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 13:20:33,755 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 13:20:33,774 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 13:20:33,774 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 13:20:33,775 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 13:20:33,776 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 13:20:33,778 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 13:20:33,780 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 13:20:33,781 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 13:20:33,782 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 13:20:33,782 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 13:20:33,783 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 13:20:33,784 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 13:20:33,785 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 13:20:33,786 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 13:20:33,787 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 13:20:33,789 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 13:20:33,791 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 13:20:33,793 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 13:20:33,794 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 13:20:33,795 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 13:20:33,798 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-10 13:20:33,805 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 13:20:33,805 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 13:20:33,806 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 13:20:33,807 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 13:20:33,807 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-10 13:20:33,830 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 13:20:33,831 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 13:20:33,834 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 13:20:33,834 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 13:20:33,834 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 13:20:33,834 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 13:20:33,835 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 13:20:33,835 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 13:20:33,835 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 13:20:33,835 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 13:20:33,836 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 13:20:33,836 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 13:20:33,836 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 13:20:33,837 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 13:20:33,837 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 13:20:33,837 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 13:20:33,838 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 13:20:33,838 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 13:20:33,838 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 13:20:33,839 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 13:20:33,839 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 13:20:33,839 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 13:20:33,839 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 13:20:33,840 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 13:20:33,840 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 13:20:33,840 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 13:20:33,840 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 13:20:33,840 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-10 13:20:33,841 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 13:20:33,841 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 13:20:33,841 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 13:20:33,841 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 13:20:33,841 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 13:20:33,928 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 13:20:33,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 13:20:33,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 13:20:33,956 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 13:20:33,957 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 13:20:33,958 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label43_true-unreach-call_false-termination.c [2018-09-10 13:20:34,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56829bba6/f6f65ab78f2f4d43a15650ad55aa8371/FLAG8ce82c24b [2018-09-10 13:20:34,592 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 13:20:34,593 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label43_true-unreach-call_false-termination.c [2018-09-10 13:20:34,622 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56829bba6/f6f65ab78f2f4d43a15650ad55aa8371/FLAG8ce82c24b [2018-09-10 13:20:34,653 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56829bba6/f6f65ab78f2f4d43a15650ad55aa8371 [2018-09-10 13:20:34,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 13:20:34,673 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 13:20:34,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 13:20:34,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 13:20:34,691 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 13:20:34,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:20:34" (1/1) ... [2018-09-10 13:20:34,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633b4ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:20:34, skipping insertion in model container [2018-09-10 13:20:34,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:20:34" (1/1) ... [2018-09-10 13:20:35,003 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 13:20:35,300 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 13:20:35,322 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 13:20:35,459 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 13:20:35,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:20:35 WrapperNode [2018-09-10 13:20:35,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 13:20:35,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 13:20:35,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 13:20:35,505 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 13:20:35,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:20:35" (1/1) ... [2018-09-10 13:20:35,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:20:35" (1/1) ... [2018-09-10 13:20:35,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 13:20:35,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 13:20:35,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 13:20:35,618 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 13:20:35,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:20:35" (1/1) ... [2018-09-10 13:20:35,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:20:35" (1/1) ... [2018-09-10 13:20:35,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:20:35" (1/1) ... [2018-09-10 13:20:35,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:20:35" (1/1) ... [2018-09-10 13:20:35,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:20:35" (1/1) ... [2018-09-10 13:20:35,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:20:35" (1/1) ... [2018-09-10 13:20:35,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:20:35" (1/1) ... [2018-09-10 13:20:35,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 13:20:35,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 13:20:35,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 13:20:35,875 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 13:20:35,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:20:35" (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 [2018-09-10 13:20:35,960 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-09-10 13:20:35,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-09-10 13:20:35,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 13:20:35,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 13:20:35,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 13:20:35,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 13:20:35,962 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 13:20:35,962 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 13:20:39,629 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 13:20:39,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:20:39 BoogieIcfgContainer [2018-09-10 13:20:39,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 13:20:39,632 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-09-10 13:20:39,632 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-09-10 13:20:39,633 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-09-10 13:20:39,634 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:20:39" (1/1) ... [2018-09-10 13:20:39,725 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-09-10 13:25:13,175 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-09-10 13:25:13,176 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2. Reason: Timeout or Toolchain cancelled by user [2018-09-10 13:25:13,178 INFO L168 Benchmark]: Toolchain (without parser) took 278508.38 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-10 13:25:13,181 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 13:25:13,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 822.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-10 13:25:13,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-10 13:25:13,184 INFO L168 Benchmark]: Boogie Preprocessor took 253.20 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 713.6 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -808.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2018-09-10 13:25:13,185 INFO L168 Benchmark]: RCFGBuilder took 3756.24 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 124.2 MB). Peak memory consumption was 124.2 MB. Max. memory is 7.1 GB. [2018-09-10 13:25:13,186 INFO L168 Benchmark]: Abstract Interpretation took 273545.88 ms. Allocated memory was 2.2 GB in the beginning and 3.8 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -798.7 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-10 13:25:13,191 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 822.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 113.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 253.20 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 713.6 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -808.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3756.24 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 124.2 MB). Peak memory consumption was 124.2 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 273545.88 ms. Allocated memory was 2.2 GB in the beginning and 3.8 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -798.7 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2) Toolchain cancelled while FixpointEngine was executing abstract interpretation. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label43_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AbstractInterpretationCInline.xml/Csv-Benchmark-0-2018-09-10_13-25-13-208.csv Completed graceful shutdown