/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 03:05:42,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 03:05:42,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 03:05:42,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-20 03:05:42,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 03:05:42,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 03:05:42,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 03:05:42,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 03:05:42,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 03:05:42,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 03:05:42,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 03:05:42,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 03:05:42,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 03:05:42,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 03:05:42,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 03:05:42,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 03:05:42,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 03:05:42,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 03:05:42,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 03:05:42,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 03:05:42,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 03:05:42,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 03:05:42,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 03:05:42,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 03:05:42,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 03:05:42,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 03:05:42,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 03:05:42,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 03:05:42,126 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-MCRwithDepranks-Lazy.epf [2022-02-20 03:05:42,144 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 03:05:42,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 03:05:42,144 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 03:05:42,144 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 03:05:42,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 03:05:42,145 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 03:05:42,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 03:05:42,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 03:05:42,146 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 03:05:42,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 03:05:42,146 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 03:05:42,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 03:05:42,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 03:05:42,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 03:05:42,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 03:05:42,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 03:05:42,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 03:05:42,148 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 03:05:42,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 03:05:42,148 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 03:05:42,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 03:05:42,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 03:05:42,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 03:05:42,149 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 03:05:42,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 03:05:42,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:05:42,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 03:05:42,150 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 03:05:42,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 03:05:42,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 03:05:42,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 03:05:42,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 03:05:42,151 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 03:05:42,151 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 03:05:42,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 03:05:42,152 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 03:05:42,152 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 03:05:42,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 03:05:42,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 03:05:42,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 03:05:42,341 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 03:05:42,342 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 03:05:42,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c [2022-02-20 03:05:42,407 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca53552a0/4f9e9dd05cd24277ba4883e23ade0be8/FLAG306293dcf [2022-02-20 03:05:42,742 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 03:05:42,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c [2022-02-20 03:05:42,743 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-20 03:05:42,762 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca53552a0/4f9e9dd05cd24277ba4883e23ade0be8/FLAG306293dcf [2022-02-20 03:05:42,772 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca53552a0/4f9e9dd05cd24277ba4883e23ade0be8 [2022-02-20 03:05:42,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 03:05:42,774 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-20 03:05:42,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 03:05:42,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 03:05:42,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 03:05:42,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 03:05:42" (1/1) ... [2022-02-20 03:05:42,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bef7beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:42, skipping insertion in model container [2022-02-20 03:05:42,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 03:05:42" (1/1) ... [2022-02-20 03:05:42,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 03:05:42,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 03:05:42,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 03:05:42,955 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 03:05:42,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 03:05:42,972 INFO L208 MainTranslator]: Completed translation [2022-02-20 03:05:42,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:42 WrapperNode [2022-02-20 03:05:42,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 03:05:42,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 03:05:42,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 03:05:42,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 03:05:42,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:42" (1/1) ... [2022-02-20 03:05:42,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:42" (1/1) ... [2022-02-20 03:05:42,996 INFO L137 Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-02-20 03:05:42,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 03:05:42,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 03:05:42,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 03:05:42,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 03:05:43,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:42" (1/1) ... [2022-02-20 03:05:43,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:42" (1/1) ... [2022-02-20 03:05:43,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:42" (1/1) ... [2022-02-20 03:05:43,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:42" (1/1) ... [2022-02-20 03:05:43,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:42" (1/1) ... [2022-02-20 03:05:43,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:42" (1/1) ... [2022-02-20 03:05:43,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:42" (1/1) ... [2022-02-20 03:05:43,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 03:05:43,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 03:05:43,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 03:05:43,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 03:05:43,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:42" (1/1) ... [2022-02-20 03:05:43,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:05:43,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:05:43,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 03:05:43,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 03:05:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 03:05:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-20 03:05:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-20 03:05:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-02-20 03:05:43,073 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-02-20 03:05:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 03:05:43,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 03:05:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 03:05:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 03:05:43,074 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 03:05:43,125 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 03:05:43,126 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 03:05:43,250 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 03:05:43,264 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 03:05:43,264 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 03:05:43,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:05:43 BoogieIcfgContainer [2022-02-20 03:05:43,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 03:05:43,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 03:05:43,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 03:05:43,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 03:05:43,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 03:05:42" (1/3) ... [2022-02-20 03:05:43,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45897046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:05:43, skipping insertion in model container [2022-02-20 03:05:43,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:05:42" (2/3) ... [2022-02-20 03:05:43,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45897046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:05:43, skipping insertion in model container [2022-02-20 03:05:43,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:05:43" (3/3) ... [2022-02-20 03:05:43,271 INFO L111 eAbstractionObserver]: Analyzing ICFG 16-goto-outside.c [2022-02-20 03:05:43,274 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 03:05:43,274 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 03:05:43,274 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 03:05:43,274 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 03:05:43,287 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,288 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,288 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,288 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,288 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,288 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,289 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,289 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,289 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,289 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,289 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,289 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,292 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,292 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,292 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,292 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:05:43,293 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-20 03:05:43,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 03:05:43,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:05:43,346 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-20 03:05:43,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-20 03:05:43,369 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 03:05:43,379 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-20 03:05:43,379 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-20 03:05:43,429 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 35 transitions and produced 36 states. [2022-02-20 03:05:43,431 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fooErr0ASSERT_VIOLATIONASSERT === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT] === [2022-02-20 03:05:43,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:05:43,437 INFO L85 PathProgramCache]: Analyzing trace with hash 251169536, now seen corresponding path program 1 times [2022-02-20 03:05:43,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:05:43,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840887431] [2022-02-20 03:05:43,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:05:43,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:05:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:05:43,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:05:43,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:05:43,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840887431] [2022-02-20 03:05:43,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840887431] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 03:05:43,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 03:05:43,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 03:05:43,600 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173432633] [2022-02-20 03:05:43,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 03:05:43,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 03:05:43,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:05:43,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 03:05:43,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 03:05:43,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:05:43,623 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:05:43,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:05:43,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:05:43,649 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 47 transitions and produced 42 states. [2022-02-20 03:05:43,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:05:43,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 03:05:43,650 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fooErr0ASSERT_VIOLATIONASSERT === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT] === [2022-02-20 03:05:43,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:05:43,651 INFO L85 PathProgramCache]: Analyzing trace with hash 555321443, now seen corresponding path program 1 times [2022-02-20 03:05:43,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:05:43,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821554345] [2022-02-20 03:05:43,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:05:43,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:05:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 03:05:43,668 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 03:05:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 03:05:43,706 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 03:05:43,707 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 03:05:43,708 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location fooErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-20 03:05:43,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fooErr0ASSERT_VIOLATIONASSERT (1 of 3 remaining) [2022-02-20 03:05:43,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining) [2022-02-20 03:05:43,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 03:05:43,716 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 03:05:43,719 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 03:05:43,719 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 03:05:43,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 03:05:43 BasicIcfg [2022-02-20 03:05:43,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 03:05:43,743 INFO L158 Benchmark]: Toolchain (without parser) took 968.78ms. Allocated memory is still 200.3MB. Free memory was 147.3MB in the beginning and 132.0MB in the end (delta: 15.3MB). Peak memory consumption was 15.3MB. Max. memory is 8.0GB. [2022-02-20 03:05:43,744 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 200.3MB. Free memory is still 165.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 03:05:43,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.18ms. Allocated memory is still 200.3MB. Free memory was 147.0MB in the beginning and 172.7MB in the end (delta: -25.7MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-02-20 03:05:43,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.32ms. Allocated memory is still 200.3MB. Free memory was 172.7MB in the beginning and 171.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 03:05:43,745 INFO L158 Benchmark]: Boogie Preprocessor took 15.04ms. Allocated memory is still 200.3MB. Free memory was 171.3MB in the beginning and 170.2MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 03:05:43,747 INFO L158 Benchmark]: RCFGBuilder took 252.08ms. Allocated memory is still 200.3MB. Free memory was 170.2MB in the beginning and 160.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-20 03:05:43,747 INFO L158 Benchmark]: TraceAbstraction took 475.82ms. Allocated memory is still 200.3MB. Free memory was 159.8MB in the beginning and 132.0MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-02-20 03:05:43,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 200.3MB. Free memory is still 165.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 198.18ms. Allocated memory is still 200.3MB. Free memory was 147.0MB in the beginning and 172.7MB in the end (delta: -25.7MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.32ms. Allocated memory is still 200.3MB. Free memory was 172.7MB in the beginning and 171.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.04ms. Allocated memory is still 200.3MB. Free memory was 171.3MB in the beginning and 170.2MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 252.08ms. Allocated memory is still 200.3MB. Free memory was 170.2MB in the beginning and 160.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 475.82ms. Allocated memory is still 200.3MB. Free memory was 159.8MB in the beginning and 132.0MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = 0; VAL [x=0] [L16] 0 int y; VAL [x=0, y=0] [L24] 0 pthread_t threadId; VAL [threadId={2:0}, x=0, y=0] [L25] FCALL, FORK 0 pthread_create(&threadId, NULL, & foo, NULL) VAL [arg={0:0}, pthread_create(&threadId, NULL, & foo, NULL)=-1, threadId={2:0}, x=0, y=0] [L28] 0 x = x + 1 [L29] COND TRUE 0 x != y VAL [arg={0:0}, threadId={2:0}, x=1, y=0] [L19] 1 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=1, y=0] - UnprovableResult [Line: 25]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 38 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-02-20 03:05:43,775 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-02-20 03:05:43,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...