./Ultimate.py --spec ../../sv-benchmarks/c/Systems_DeviceDriversLinux64_ReachSafety.prp --file ../../sv-benchmarks/c/ldv-consumption/linux-3_false-termination.8-rc1-32_7a-drivers--md--persistent-data--dm-persistent-data.ko-ldv_main3_true-unreach-call.cil.out.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-consumption/linux-3_false-termination.8-rc1-32_7a-drivers--md--persistent-data--dm-persistent-data.ko-ldv_main3_true-unreach-call.cil.out.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/bin-2019/ukojak/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 22de7acfc5456577597680963b9f55269e428aa2 ............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 11:37:49,283 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:37:49,284 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:37:49,293 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:37:49,293 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:37:49,294 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:37:49,295 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:37:49,296 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:37:49,297 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:37:49,298 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:37:49,298 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:37:49,299 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:37:49,299 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:37:49,300 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:37:49,301 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:37:49,302 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:37:49,302 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:37:49,303 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:37:49,305 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:37:49,306 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:37:49,307 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:37:49,308 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:37:49,309 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:37:49,309 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:37:49,310 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:37:49,310 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:37:49,311 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:37:49,311 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:37:49,312 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:37:49,313 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:37:49,313 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:37:49,313 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:37:49,313 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:37:49,313 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:37:49,314 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:37:49,315 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:37:49,315 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/bin-2019/ukojak/config/svcomp-Reach-64bit-Kojak_Default.epf [2018-11-10 11:37:49,325 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:37:49,325 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:37:49,326 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:37:49,326 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 11:37:49,327 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 11:37:49,327 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 11:37:49,327 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:37:49,327 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:37:49,327 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:37:49,328 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:37:49,328 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:37:49,328 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:37:49,328 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:37:49,328 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:37:49,328 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 11:37:49,329 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 11:37:49,329 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:37:49,329 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:37:49,329 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 11:37:49,329 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:37:49,329 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:37:49,329 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:37:49,330 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 11:37:49,330 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:37:49,330 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:37:49,330 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 11:37:49,330 INFO L133 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22de7acfc5456577597680963b9f55269e428aa2 [2018-11-10 11:37:49,355 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:37:49,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:37:49,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:37:49,369 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:37:49,369 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:37:49,370 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/bin-2019/ukojak/../../sv-benchmarks/c/ldv-consumption/linux-3_false-termination.8-rc1-32_7a-drivers--md--persistent-data--dm-persistent-data.ko-ldv_main3_true-unreach-call.cil.out.c [2018-11-10 11:37:49,420 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/bin-2019/ukojak/data/11543aca0/ec968c1ca6334bebba13f1fa11e2f057/FLAGe8da115ec [2018-11-10 11:37:49,987 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:37:49,988 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/sv-benchmarks/c/ldv-consumption/linux-3_false-termination.8-rc1-32_7a-drivers--md--persistent-data--dm-persistent-data.ko-ldv_main3_true-unreach-call.cil.out.c [2018-11-10 11:37:50,019 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/bin-2019/ukojak/data/11543aca0/ec968c1ca6334bebba13f1fa11e2f057/FLAGe8da115ec [2018-11-10 11:37:50,032 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/bin-2019/ukojak/data/11543aca0/ec968c1ca6334bebba13f1fa11e2f057 [2018-11-10 11:37:50,035 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:37:50,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:37:50,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:37:50,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:37:50,040 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:37:50,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:37:50" (1/1) ... [2018-11-10 11:37:50,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3806529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:50, skipping insertion in model container [2018-11-10 11:37:50,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:37:50" (1/1) ... [2018-11-10 11:37:50,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:37:50,153 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:37:52,704 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:37:52,723 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:37:53,054 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:37:53,670 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:37:53,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:53 WrapperNode [2018-11-10 11:37:53,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:37:53,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:37:53,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:37:53,672 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:37:53,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:53" (1/1) ... [2018-11-10 11:37:53,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:53" (1/1) ... [2018-11-10 11:37:53,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:37:53,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:37:53,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:37:53,778 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:37:53,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:53" (1/1) ... [2018-11-10 11:37:53,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:53" (1/1) ... [2018-11-10 11:37:53,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:53" (1/1) ... [2018-11-10 11:37:53,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:53" (1/1) ... [2018-11-10 11:37:53,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:53" (1/1) ... [2018-11-10 11:37:53,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:53" (1/1) ... [2018-11-10 11:37:53,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:53" (1/1) ... [2018-11-10 11:37:53,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:37:53,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:37:53,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:37:53,821 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:37:53,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2018-11-10 11:37:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_checksum [2018-11-10 11:37:53,860 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_checksum [2018-11-10 11:37:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure index_prepare_for_write [2018-11-10 11:37:53,860 INFO L138 BoogieDeclarations]: Found implementation of procedure index_prepare_for_write [2018-11-10 11:37:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure index_check [2018-11-10 11:37:53,861 INFO L138 BoogieDeclarations]: Found implementation of procedure index_check [2018-11-10 11:37:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 11:37:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 11:37:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 11:37:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-11-10 11:37:53,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2018-11-10 11:37:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 11:37:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2018-11-10 11:37:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:37:53,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:37:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2018-11-10 11:37:53,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2018-11-10 11:37:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bufio_get_block_number [2018-11-10 11:37:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_location [2018-11-10 11:37:53,863 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_location [2018-11-10 11:37:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure to_buffer [2018-11-10 11:37:53,863 INFO L138 BoogieDeclarations]: Found implementation of procedure to_buffer [2018-11-10 11:37:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_data [2018-11-10 11:37:53,864 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_data [2018-11-10 11:37:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2018-11-10 11:37:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_check [2018-11-10 11:37:53,864 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_check [2018-11-10 11:37:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 11:37:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_prepare_for_write [2018-11-10 11:37:53,864 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_prepare_for_write [2018-11-10 11:37:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-11-10 11:37:53,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2018-11-10 11:38:23,700 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:38:23,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:38:23 BoogieIcfgContainer [2018-11-10 11:38:23,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:38:23,701 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 11:38:23,701 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 11:38:23,709 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 11:38:23,709 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:38:23" (1/1) ... [2018-11-10 11:38:23,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:38:23,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:38:23,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 84 states and 107 transitions. [2018-11-10 11:38:23,750 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 107 transitions. [2018-11-10 11:38:23,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 11:38:23,755 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:38:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:38:24,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:38:24,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:38:24,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 87 states and 113 transitions. [2018-11-10 11:38:24,118 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 113 transitions. [2018-11-10 11:38:24,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 11:38:24,119 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:38:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:38:24,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:38:24,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:38:24,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 92 states and 123 transitions. [2018-11-10 11:38:24,288 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 123 transitions. [2018-11-10 11:38:24,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 11:38:24,290 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:38:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:38:24,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 11:38:24,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:38:24,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 96 states and 130 transitions. [2018-11-10 11:38:24,357 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 130 transitions. [2018-11-10 11:38:24,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 11:38:24,357 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:38:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:38:24,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 11:38:24,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:38:24,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 100 states and 137 transitions. [2018-11-10 11:38:24,412 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2018-11-10 11:38:24,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-10 11:38:24,414 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:38:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:38:24,479 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 11:38:24,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:38:24,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 101 states and 138 transitions. [2018-11-10 11:38:24,501 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 138 transitions. [2018-11-10 11:38:24,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 11:38:24,502 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:38:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:38:24,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 11:38:24,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:38:24,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 102 states and 139 transitions. [2018-11-10 11:38:24,586 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2018-11-10 11:38:24,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 11:38:24,588 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:38:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:38:24,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 11:38:24,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:38:24,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 103 states and 140 transitions. [2018-11-10 11:38:24,675 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 140 transitions. [2018-11-10 11:38:24,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-10 11:38:24,677 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:38:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:38:24,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 11:38:24,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:38:24,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 104 states and 141 transitions. [2018-11-10 11:38:24,765 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 141 transitions. [2018-11-10 11:38:24,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-10 11:38:24,772 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:38:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:38:24,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 11:38:24,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:38:24,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 106 states and 143 transitions. [2018-11-10 11:38:24,882 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 143 transitions. [2018-11-10 11:38:24,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 11:38:24,884 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:38:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:38:25,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 11:38:25,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:38:25,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 108 states and 145 transitions. [2018-11-10 11:38:25,043 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 145 transitions. [2018-11-10 11:38:25,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-10 11:38:25,044 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:38:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:38:25,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 11:38:25,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:38:25,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 95 states and 123 transitions. [2018-11-10 11:38:25,133 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 123 transitions. [2018-11-10 11:38:25,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-10 11:38:25,134 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:38:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:38:25,213 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 11:38:25,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:38:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 79 states and 99 transitions. [2018-11-10 11:38:25,227 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 99 transitions. [2018-11-10 11:38:25,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 11:38:25,228 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2018-11-10 11:38:25,237 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-10 11:38:25,391 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 11:38:25,394 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 11:38:25,394 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 11:38:25,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 11:38:25 ImpRootNode [2018-11-10 11:38:25,394 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 11:38:25,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:38:25,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:38:25,395 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:38:25,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:38:23" (3/4) ... [2018-11-10 11:38:25,400 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 11:38:25,406 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure bitmap_prepare_for_write [2018-11-10 11:38:25,406 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure index_check [2018-11-10 11:38:25,406 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure dm_block_location [2018-11-10 11:38:25,406 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2018-11-10 11:38:25,406 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure to_buffer [2018-11-10 11:38:25,406 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_check_final_state [2018-11-10 11:38:25,406 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure dm_block_data [2018-11-10 11:38:25,407 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure dm_bm_checksum [2018-11-10 11:38:25,407 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_initialize [2018-11-10 11:38:25,407 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure index_prepare_for_write [2018-11-10 11:38:25,408 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure bitmap_check [2018-11-10 11:38:25,417 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 155 nodes and edges [2018-11-10 11:38:25,418 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2018-11-10 11:38:25,418 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-11-10 11:38:25,419 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 11:38:25,491 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9f289930-a252-4390-925d-5c6dfb0321dc/bin-2019/ukojak/witness.graphml [2018-11-10 11:38:25,491 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:38:25,492 INFO L168 Benchmark]: Toolchain (without parser) took 35456.91 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 343.4 MB). Free memory was 947.7 MB in the beginning and 1.2 GB in the end (delta: -221.2 MB). Peak memory consumption was 122.3 MB. Max. memory is 11.5 GB. [2018-11-10 11:38:25,493 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:38:25,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3634.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.9 MB). Free memory was 947.7 MB in the beginning and 949.3 MB in the end (delta: -1.6 MB). Peak memory consumption was 316.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:38:25,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.28 ms. Allocated memory is still 1.2 GB. Free memory was 949.3 MB in the beginning and 942.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-10 11:38:25,494 INFO L168 Benchmark]: Boogie Preprocessor took 42.24 ms. Allocated memory is still 1.2 GB. Free memory was 942.4 MB in the beginning and 936.1 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. [2018-11-10 11:38:25,494 INFO L168 Benchmark]: RCFGBuilder took 29880.00 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 139.5 MB). Free memory was 936.1 MB in the beginning and 1.1 GB in the end (delta: -133.5 MB). Peak memory consumption was 103.2 MB. Max. memory is 11.5 GB. [2018-11-10 11:38:25,494 INFO L168 Benchmark]: CodeCheck took 1693.76 ms. Allocated memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 2.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -108.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:38:25,494 INFO L168 Benchmark]: Witness Printer took 96.56 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. [2018-11-10 11:38:25,497 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 12 procedures, 272 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 13 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 82176 SDtfs, 47584 SDslu, 91616 SDs, 0 SdLazy, 46480 SolverSat, 21460 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2939 GetRequests, 2931 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 362 NumberOfCodeBlocks, 362 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 19790 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 36/36 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 12211]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7134]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7170]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7163]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 3634.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.9 MB). Free memory was 947.7 MB in the beginning and 949.3 MB in the end (delta: -1.6 MB). Peak memory consumption was 316.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 106.28 ms. Allocated memory is still 1.2 GB. Free memory was 949.3 MB in the beginning and 942.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.24 ms. Allocated memory is still 1.2 GB. Free memory was 942.4 MB in the beginning and 936.1 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 29880.00 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 139.5 MB). Free memory was 936.1 MB in the beginning and 1.1 GB in the end (delta: -133.5 MB). Peak memory consumption was 103.2 MB. Max. memory is 11.5 GB. * CodeCheck took 1693.76 ms. Allocated memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 2.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -108.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 96.56 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...