/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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 14:35:49,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 14:35:49,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 14:35:49,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 14:35:49,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-10 14:35:49,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-10 14:35:49,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-10 14:35:49,609 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random521.epf [2021-07-10 14:35:49,647 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 14:35:49,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 14:35:49,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 14:35:49,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 14:35:49,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 14:35:49,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 14:35:49,650 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 14:35:49,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 14:35:49,651 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 14:35:49,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 14:35:49,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 14:35:49,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 14:35:49,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 14:35:49,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 14:35:49,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 14:35:49,652 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 14:35:49,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 14:35:49,653 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 14:35:49,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 14:35:49,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 14:35:49,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 14:35:49,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 14:35:49,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 14:35:49,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 14:35:49,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 14:35:49,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 14:35:49,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 14:35:49,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 14:35:49,654 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-10 14:35:49,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 14:35:49,655 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 14:35:49,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 14:35:49,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 14:35:49,655 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-10 14:35:49,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-10 14:35:49,655 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 14:35:49,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 14:35:49,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 14:35:49,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 14:35:49,977 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-10 14:35:49,981 INFO L275 PluginConnector]: CDTParser initialized [2021-07-10 14:35:49,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2021-07-10 14:35:50,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4449a4af2/0d664e20e6fe457ebe944ea02dfb3115/FLAG5dc3ffe39 [2021-07-10 14:35:50,553 INFO L306 CDTParser]: Found 1 translation units. [2021-07-10 14:35:50,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2021-07-10 14:35:50,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4449a4af2/0d664e20e6fe457ebe944ea02dfb3115/FLAG5dc3ffe39 [2021-07-10 14:35:51,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4449a4af2/0d664e20e6fe457ebe944ea02dfb3115 [2021-07-10 14:35:51,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 14:35:51,074 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-10 14:35:51,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-10 14:35:51,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-10 14:35:51,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-10 14:35:51,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:35:51" (1/1) ... [2021-07-10 14:35:51,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30eb8912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:35:51, skipping insertion in model container [2021-07-10 14:35:51,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:35:51" (1/1) ... [2021-07-10 14:35:51,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-10 14:35:51,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-10 14:35:51,435 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i[30003,30016] [2021-07-10 14:35:51,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-10 14:35:51,464 INFO L203 MainTranslator]: Completed pre-run [2021-07-10 14:35:51,502 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i[30003,30016] [2021-07-10 14:35:51,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-10 14:35:51,555 INFO L208 MainTranslator]: Completed translation [2021-07-10 14:35:51,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:35:51 WrapperNode [2021-07-10 14:35:51,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-10 14:35:51,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 14:35:51,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 14:35:51,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 14:35:51,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:35:51" (1/1) ... [2021-07-10 14:35:51,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:35:51" (1/1) ... [2021-07-10 14:35:51,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 14:35:51,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 14:35:51,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 14:35:51,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 14:35:51,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:35:51" (1/1) ... [2021-07-10 14:35:51,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:35:51" (1/1) ... [2021-07-10 14:35:51,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:35:51" (1/1) ... [2021-07-10 14:35:51,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:35:51" (1/1) ... [2021-07-10 14:35:51,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:35:51" (1/1) ... [2021-07-10 14:35:51,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:35:51" (1/1) ... [2021-07-10 14:35:51,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:35:51" (1/1) ... [2021-07-10 14:35:51,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 14:35:51,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 14:35:51,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 14:35:51,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 14:35:51,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:35:51" (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 [2021-07-10 14:35:51,724 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-07-10 14:35:51,725 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-07-10 14:35:51,725 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-07-10 14:35:51,725 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-07-10 14:35:51,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-10 14:35:51,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-10 14:35:51,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-10 14:35:51,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-10 14:35:51,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 14:35:51,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 14:35:51,727 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 14:35:52,065 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 14:35:52,065 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-07-10 14:35:52,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:35:52 BoogieIcfgContainer [2021-07-10 14:35:52,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 14:35:52,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 14:35:52,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 14:35:52,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 14:35:52,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 02:35:51" (1/3) ... [2021-07-10 14:35:52,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8b5aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:35:52, skipping insertion in model container [2021-07-10 14:35:52,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:35:51" (2/3) ... [2021-07-10 14:35:52,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8b5aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:35:52, skipping insertion in model container [2021-07-10 14:35:52,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:35:52" (3/3) ... [2021-07-10 14:35:52,075 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2021-07-10 14:35:52,082 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 14:35:52,082 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 14:35:52,082 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 14:35:52,083 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 14:35:52,115 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,115 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,115 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,115 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,116 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,116 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,116 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,116 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,118 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,118 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,118 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,118 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,118 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,127 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,127 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,127 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,127 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,127 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-10 14:35:52,142 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-10 14:35:52,162 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 14:35:52,228 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 14:35:52,228 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 14:35:52,228 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 14:35:52,228 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 14:35:52,229 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 14:35:52,229 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 14:35:52,229 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 14:35:52,229 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thr1Thread1of1ForFork1======== [2021-07-10 14:35:52,340 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 14:35:52,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:35:52,345 INFO L82 PathProgramCache]: Analyzing trace with hash 2125188472, now seen corresponding path program 1 times [2021-07-10 14:35:52,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:35:52,353 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099426364] [2021-07-10 14:35:52,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:35:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:35:52,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:35:52,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:35:52,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099426364] [2021-07-10 14:35:52,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099426364] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 14:35:52,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 14:35:52,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-10 14:35:52,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233896433] [2021-07-10 14:35:52,554 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-10 14:35:52,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:35:52,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-10 14:35:52,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-10 14:35:52,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:35:52,567 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:35:52,569 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 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) [2021-07-10 14:35:52,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:35:52,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:35:52,574 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 14:35:52,575 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 14:35:52,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:35:52,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1301402901, now seen corresponding path program 1 times [2021-07-10 14:35:52,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:35:52,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222429789] [2021-07-10 14:35:52,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:35:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:35:52,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:35:52,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:35:52,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222429789] [2021-07-10 14:35:52,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222429789] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 14:35:52,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 14:35:52,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-10 14:35:52,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124520704] [2021-07-10 14:35:52,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-10 14:35:52,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:35:52,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-10 14:35:52,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-10 14:35:52,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:35:52,729 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:35:52,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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) [2021-07-10 14:35:52,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:35:52,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:35:52,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:35:52,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:35:52,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-10 14:35:52,938 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 14:35:52,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:35:52,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1662021839, now seen corresponding path program 1 times [2021-07-10 14:35:52,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:35:52,946 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957104244] [2021-07-10 14:35:52,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:35:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:35:53,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:35:53,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 14:35:53,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957104244] [2021-07-10 14:35:53,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957104244] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:35:53,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669440715] [2021-07-10 14:35:53,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 14:35:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 14:35:53,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-10 14:35:53,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 14:35:53,686 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 14:35:53,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669440715] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 14:35:53,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 14:35:53,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-07-10 14:35:53,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871498257] [2021-07-10 14:35:53,688 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-10 14:35:53,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 14:35:53,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-10 14:35:53,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-07-10 14:35:53,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:35:53,689 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 14:35:53,689 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.9) internal successors, (98), 20 states have internal predecessors, (98), 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) [2021-07-10 14:35:53,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:35:53,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:35:53,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:35:54,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 14:35:54,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 14:35:54,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 14:35:54,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 14:35:54,536 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-10 14:35:54,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 14:35:54,536 INFO L82 PathProgramCache]: Analyzing trace with hash 881189338, now seen corresponding path program 1 times [2021-07-10 14:35:54,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 14:35:54,537 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90017710] [2021-07-10 14:35:54,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 14:35:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-10 14:35:54,566 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-10 14:35:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-10 14:35:54,584 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-10 14:35:54,619 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-10 14:35:54,619 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-10 14:35:54,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-10 14:35:54,625 INFO L301 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork1 was UNSAFE (1/2) [2021-07-10 14:35:54,627 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-10 14:35:54,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 02:35:54 BasicIcfg [2021-07-10 14:35:54,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-10 14:35:54,692 INFO L168 Benchmark]: Toolchain (without parser) took 3618.34 ms. Allocated memory was 183.5 MB in the beginning and 231.7 MB in the end (delta: 48.2 MB). Free memory was 146.4 MB in the beginning and 159.2 MB in the end (delta: -12.8 MB). Peak memory consumption was 36.7 MB. Max. memory is 8.0 GB. [2021-07-10 14:35:54,693 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 183.5 MB. Free memory is still 164.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 14:35:54,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 481.16 ms. Allocated memory is still 183.5 MB. Free memory was 146.2 MB in the beginning and 157.7 MB in the end (delta: -11.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-10 14:35:54,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.02 ms. Allocated memory is still 183.5 MB. Free memory was 157.7 MB in the beginning and 155.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-10 14:35:54,693 INFO L168 Benchmark]: Boogie Preprocessor took 34.56 ms. Allocated memory is still 183.5 MB. Free memory was 155.6 MB in the beginning and 154.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-10 14:35:54,693 INFO L168 Benchmark]: RCFGBuilder took 416.03 ms. Allocated memory is still 183.5 MB. Free memory was 154.5 MB in the beginning and 132.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-07-10 14:35:54,693 INFO L168 Benchmark]: TraceAbstraction took 2623.14 ms. Allocated memory was 183.5 MB in the beginning and 231.7 MB in the end (delta: 48.2 MB). Free memory was 132.0 MB in the beginning and 159.2 MB in the end (delta: -27.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-07-10 14:35:54,694 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 183.5 MB. Free memory is still 164.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 481.16 ms. Allocated memory is still 183.5 MB. Free memory was 146.2 MB in the beginning and 157.7 MB in the end (delta: -11.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.02 ms. Allocated memory is still 183.5 MB. Free memory was 157.7 MB in the beginning and 155.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.56 ms. Allocated memory is still 183.5 MB. Free memory was 155.6 MB in the beginning and 154.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 416.03 ms. Allocated memory is still 183.5 MB. Free memory was 154.5 MB in the beginning and 132.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2623.14 ms. Allocated memory was 183.5 MB in the beginning and 231.7 MB in the end (delta: 48.2 MB). Free memory was 132.0 MB in the beginning and 159.2 MB in the end (delta: -27.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1856, positive: 1824, positive conditional: 170, positive unconditional: 1654, negative: 32, negative conditional: 24, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1840, positive: 1824, positive conditional: 170, positive unconditional: 1654, negative: 16, negative conditional: 8, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1840, positive: 1823, positive conditional: 0, positive unconditional: 1823, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 712, positive: 707, positive conditional: 0, positive unconditional: 707, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 712, positive: 707, positive conditional: 0, positive unconditional: 707, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 9, negative conditional: 4, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 51, negative conditional: 11, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1840, positive: 1116, positive conditional: 0, positive unconditional: 1116, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 712, unknown conditional: 0, unknown unconditional: 712] , Statistics on independence cache: Total cache size (in pairs): 717, Positive cache size: 708, Positive conditional cache size: 1, Positive unconditional cache size: 707, Negative cache size: 9, Negative conditional cache size: 4, Negative unconditional cache size: 5, SemanticConditionEliminator.Independence Queries: [ total: 39, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 38, negative conditional: 13, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 38, negative conditional: 13, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 9, negative conditional: 4, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 51, negative conditional: 11, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 39, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 34, negative conditional: 9, negative unconditional: 25, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 717, Positive cache size: 708, Positive conditional cache size: 1, Positive unconditional cache size: 707, Negative cache size: 9, Negative conditional cache size: 4, Negative unconditional cache size: 5, Eliminated conditions: 9, SemanticConditionEliminator.Independence Queries: [ total: 39, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 38, negative conditional: 13, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 38, negative conditional: 13, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 9, negative conditional: 4, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 51, negative conditional: 11, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 39, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 34, negative conditional: 9, negative unconditional: 25, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 717, Positive cache size: 708, Positive conditional cache size: 1, Positive unconditional cache size: 707, Negative cache size: 9, Negative conditional cache size: 4, Negative unconditional cache size: 5, Eliminated conditions: 9, SemanticConditionEliminator.Independence Queries: [ total: 39, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 38, negative conditional: 13, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 38, negative conditional: 13, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 9, negative conditional: 4, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 51, negative conditional: 11, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 39, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 34, negative conditional: 9, negative unconditional: 25, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 717, Positive cache size: 708, Positive conditional cache size: 1, Positive unconditional cache size: 707, Negative cache size: 9, Negative conditional cache size: 4, Negative unconditional cache size: 5, Eliminated conditions: 9 ], Maximal queried relation: 3, Independence queries for same thread: 16 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 110, Number of persistent set computation: 86, Number of trivial persistent sets: 68, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1856, positive: 1824, positive conditional: 170, positive unconditional: 1654, negative: 32, negative conditional: 24, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1840, positive: 1824, positive conditional: 170, positive unconditional: 1654, negative: 16, negative conditional: 8, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1840, positive: 1823, positive conditional: 0, positive unconditional: 1823, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 712, positive: 707, positive conditional: 0, positive unconditional: 707, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 712, positive: 707, positive conditional: 0, positive unconditional: 707, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 9, negative conditional: 4, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 51, negative conditional: 11, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1840, positive: 1116, positive conditional: 0, positive unconditional: 1116, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 712, unknown conditional: 0, unknown unconditional: 712] , Statistics on independence cache: Total cache size (in pairs): 717, Positive cache size: 708, Positive conditional cache size: 1, Positive unconditional cache size: 707, Negative cache size: 9, Negative conditional cache size: 4, Negative unconditional cache size: 5, SemanticConditionEliminator.Independence Queries: [ total: 39, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 38, negative conditional: 13, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 38, negative conditional: 13, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 9, negative conditional: 4, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 51, negative conditional: 11, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 39, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 34, negative conditional: 9, negative unconditional: 25, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 717, Positive cache size: 708, Positive conditional cache size: 1, Positive unconditional cache size: 707, Negative cache size: 9, Negative conditional cache size: 4, Negative unconditional cache size: 5, Eliminated conditions: 9, SemanticConditionEliminator.Independence Queries: [ total: 39, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 38, negative conditional: 13, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 38, negative conditional: 13, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 9, negative conditional: 4, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 51, negative conditional: 11, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 39, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 34, negative conditional: 9, negative unconditional: 25, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 717, Positive cache size: 708, Positive conditional cache size: 1, Positive unconditional cache size: 707, Negative cache size: 9, Negative conditional cache size: 4, Negative unconditional cache size: 5, Eliminated conditions: 9, SemanticConditionEliminator.Independence Queries: [ total: 39, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 38, negative conditional: 13, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 38, negative conditional: 13, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 9, negative conditional: 4, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 51, negative conditional: 11, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 39, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 34, negative conditional: 9, negative unconditional: 25, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 717, Positive cache size: 708, Positive conditional cache size: 1, Positive unconditional cache size: 707, Negative cache size: 9, Negative conditional cache size: 4, Negative unconditional cache size: 5, Eliminated conditions: 9 ], Maximal queried relation: 3, Independence queries for same thread: 16 - CounterExampleResult [Line: 690]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 volatile int x; VAL [x=0] [L698] 0 volatile int n; VAL [n=0, x=0] [L710] 0 pthread_t t1, t2; VAL [n=0, x=0] [L711] 0 int i; VAL [n=0, x=0] [L712] 0 x = 0 VAL [n=0, x=0] [L713] 0 n = __VERIFIER_nondet_int() VAL [n=1, x=0] [L686] COND FALSE 0 !(!cond) VAL [n=1, x=0] [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [n=1, x=0] [L716] 0 i = 0 VAL [n=1, x=0] [L716] COND TRUE 0 i < n VAL [n=1, x=0] [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [arg={0:0}, n=1, x=0] [L716] 0 i++ VAL [arg={0:0}, n=1, x=0] [L704] 2 int t; VAL [arg={0:0}, arg={0:0}, n=1, x=0] [L705] 2 t = x VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=0] [L716] 0 i++ VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=0] [L716] COND FALSE 0 !(i < n) VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=0] [L706] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L707] 2 return 0; VAL [\result={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L719] 0 return 0; VAL [\result={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L719] 0 return 0; VAL [\result={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L689] COND TRUE 1 !(cond) VAL [\result={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L690] 1 reach_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 89 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2435.2ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 17.5ms, PartialOrderReductionTime: 926.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 37.3ms SsaConstructionTime, 157.8ms SatisfiabilityAnalysisTime, 758.5ms InterpolantComputationTime, 248 NumberOfCodeBlocks, 248 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 578 SizeOfPredicates, 8 NumberOfNonLiveVariables, 142 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/8 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! Received shutdown request...