./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8099a8c3-a45c-484e-a459-ccffd0968c70/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8099a8c3-a45c-484e-a459-ccffd0968c70/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8099a8c3-a45c-484e-a459-ccffd0968c70/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8099a8c3-a45c-484e-a459-ccffd0968c70/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8099a8c3-a45c-484e-a459-ccffd0968c70/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8099a8c3-a45c-484e-a459-ccffd0968c70/bin/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 32bit --witnessprinter.graph.data.programhash 64e3171545e565243a03380a6c1febecc0f624e2 ............................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:16:55,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:16:55,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:16:55,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:16:55,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:16:55,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:16:55,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:16:55,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:16:55,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:16:55,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:16:55,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:16:55,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:16:55,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:16:55,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:16:55,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:16:55,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:16:55,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:16:55,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:16:55,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:16:55,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:16:55,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:16:55,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:16:55,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:16:55,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:16:55,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:16:55,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:16:55,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:16:55,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:16:55,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:16:55,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:16:55,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:16:55,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:16:55,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:16:55,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:16:55,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:16:55,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:16:55,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:16:55,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:16:55,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:16:55,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:16:55,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:16:55,561 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8099a8c3-a45c-484e-a459-ccffd0968c70/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-10-22 10:16:55,576 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:16:55,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:16:55,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:16:55,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:16:55,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:16:55,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:16:55,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:16:55,588 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:16:55,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:16:55,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:16:55,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:16:55,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:16:55,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:16:55,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:16:55,589 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:16:55,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:16:55,589 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:16:55,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:16:55,590 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:16:55,590 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:16:55,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:16:55,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:16:55,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:16:55,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:16:55,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:16:55,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:16:55,591 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:16:55,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:16:55,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:16:55,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_8099a8c3-a45c-484e-a459-ccffd0968c70/bin/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64e3171545e565243a03380a6c1febecc0f624e2 [2019-10-22 10:16:55,627 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:16:55,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:16:55,643 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:16:55,645 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:16:55,645 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:16:55,646 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8099a8c3-a45c-484e-a459-ccffd0968c70/bin/ukojak/../../sv-benchmarks/c/product-lines/email_spec0_product37.cil.c [2019-10-22 10:16:55,689 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8099a8c3-a45c-484e-a459-ccffd0968c70/bin/ukojak/data/8b3b0dc0c/1d7bbfecde2343ab9e470b8f220d9300/FLAG8c0e9e510 [2019-10-22 10:16:56,187 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:16:56,188 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8099a8c3-a45c-484e-a459-ccffd0968c70/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c [2019-10-22 10:16:56,209 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8099a8c3-a45c-484e-a459-ccffd0968c70/bin/ukojak/data/8b3b0dc0c/1d7bbfecde2343ab9e470b8f220d9300/FLAG8c0e9e510 [2019-10-22 10:16:56,666 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8099a8c3-a45c-484e-a459-ccffd0968c70/bin/ukojak/data/8b3b0dc0c/1d7bbfecde2343ab9e470b8f220d9300 [2019-10-22 10:16:56,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:16:56,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:16:56,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:16:56,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:16:56,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:16:56,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:16:56" (1/1) ... [2019-10-22 10:16:56,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b6cf3b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:56, skipping insertion in model container [2019-10-22 10:16:56,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:16:56" (1/1) ... [2019-10-22 10:16:56,682 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:16:56,741 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:16:57,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:16:57,323 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:16:57,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:16:57,502 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:16:57,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:57 WrapperNode [2019-10-22 10:16:57,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:16:57,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:16:57,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:16:57,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:16:57,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:57" (1/1) ... [2019-10-22 10:16:57,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:57" (1/1) ... [2019-10-22 10:16:57,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:16:57,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:16:57,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:16:57,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:16:57,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:57" (1/1) ... [2019-10-22 10:16:57,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:57" (1/1) ... [2019-10-22 10:16:57,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:57" (1/1) ... [2019-10-22 10:16:57,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:57" (1/1) ... [2019-10-22 10:16:57,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:57" (1/1) ... [2019-10-22 10:16:57,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:57" (1/1) ... [2019-10-22 10:16:57,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:57" (1/1) ... [2019-10-22 10:16:57,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:16:57,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:16:57,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:16:57,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:16:57,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8099a8c3-a45c-484e-a459-ccffd0968c70/bin/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 [2019-10-22 10:16:57,737 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-22 10:16:57,737 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-22 10:16:57,737 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-22 10:16:57,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-22 10:16:57,737 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-22 10:16:57,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-22 10:16:57,738 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-22 10:16:57,738 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-22 10:16:57,738 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-22 10:16:57,738 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-22 10:16:57,738 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-22 10:16:57,738 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-22 10:16:57,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-22 10:16:57,739 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-22 10:16:57,740 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-22 10:16:57,740 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-22 10:16:57,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-22 10:16:57,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 10:16:57,740 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-22 10:16:57,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-22 10:16:57,741 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-22 10:16:57,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-22 10:16:57,741 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-22 10:16:57,741 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-22 10:16:57,742 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-22 10:16:57,742 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-22 10:16:57,742 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-22 10:16:57,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-22 10:16:57,742 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-22 10:16:57,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-22 10:16:57,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 10:16:57,742 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-22 10:16:57,742 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-22 10:16:57,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:16:57,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:16:59,700 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:16:59,700 INFO L284 CfgBuilder]: Removed 93 assume(true) statements. [2019-10-22 10:16:59,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:59 BoogieIcfgContainer [2019-10-22 10:16:59,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:16:59,702 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:16:59,702 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:16:59,713 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:16:59,713 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:59" (1/1) ... [2019-10-22 10:16:59,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:16:59,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:59,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 135 states and 188 transitions. [2019-10-22 10:16:59,767 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 188 transitions. [2019-10-22 10:16:59,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-22 10:16:59,776 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:17:00,132 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 10:17:00,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:17:00,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 135 states and 186 transitions. [2019-10-22 10:17:00,163 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 186 transitions. [2019-10-22 10:17:00,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-22 10:17:00,169 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:17:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:17:00,303 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 10:17:00,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:17:00,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 137 states and 199 transitions. [2019-10-22 10:17:00,350 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 199 transitions. [2019-10-22 10:17:00,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-22 10:17:00,353 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:17:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:17:00,469 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-22 10:17:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:17:00,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 140 states and 212 transitions. [2019-10-22 10:17:00,558 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 212 transitions. [2019-10-22 10:17:00,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-22 10:17:00,564 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:17:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:17:00,716 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-22 10:17:00,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:17:00,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 138 states and 210 transitions. [2019-10-22 10:17:00,791 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 210 transitions. [2019-10-22 10:17:00,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:17:00,793 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2019-10-22 10:17:00,807 INFO L771 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-10-22 10:17:00,898 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,902 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,902 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,903 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,903 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,903 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,903 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,903 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,903 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,903 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,903 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,904 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,904 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,904 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,905 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,905 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,905 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,905 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,905 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,905 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,905 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,905 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,906 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,906 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,906 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,906 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,906 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,907 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,907 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,907 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,907 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,907 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,907 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,907 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,907 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,908 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,908 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,908 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:17:00,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:17:00 ImpRootNode [2019-10-22 10:17:00,908 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:17:00,909 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:17:00,909 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:17:00,909 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:17:00,912 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:59" (3/4) ... [2019-10-22 10:17:00,915 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:17:00,923 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure outgoing [2019-10-22 10:17:00,924 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setClientPrivateKey [2019-10-22 10:17:00,927 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure chuckKeyAdd [2019-10-22 10:17:00,928 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setEmailTo [2019-10-22 10:17:00,929 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getEmailTo [2019-10-22 10:17:00,929 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure createClientKeyringEntry [2019-10-22 10:17:00,929 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure generateKeyPair [2019-10-22 10:17:00,929 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setClientKeyringUser [2019-10-22 10:17:00,929 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sendEmail [2019-10-22 10:17:00,929 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setEmailFrom [2019-10-22 10:17:00,930 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getEmailFrom [2019-10-22 10:17:00,930 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isReadable [2019-10-22 10:17:00,930 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure queue [2019-10-22 10:17:00,930 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setClientKeyringPublicKey [2019-10-22 10:17:00,930 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setClientId [2019-10-22 10:17:00,956 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 162 nodes and edges [2019-10-22 10:17:00,958 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2019-10-22 10:17:00,959 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-10-22 10:17:00,960 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 10:17:00,961 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 10:17:01,115 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8099a8c3-a45c-484e-a459-ccffd0968c70/bin/ukojak/witness.graphml [2019-10-22 10:17:01,115 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:17:01,117 INFO L168 Benchmark]: Toolchain (without parser) took 4447.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 938.0 MB in the beginning and 914.1 MB in the end (delta: 23.9 MB). Peak memory consumption was 166.5 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:01,117 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:17:01,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 833.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -154.3 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:01,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:01,118 INFO L168 Benchmark]: Boogie Preprocessor took 86.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:01,118 INFO L168 Benchmark]: RCFGBuilder took 2026.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.7 MB). Peak memory consumption was 214.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:01,119 INFO L168 Benchmark]: CodeCheck took 1206.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 936.6 MB in the end (delta: 139.3 MB). Peak memory consumption was 139.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:01,119 INFO L168 Benchmark]: Witness Printer took 206.21 ms. Allocated memory is still 1.2 GB. Free memory was 936.6 MB in the beginning and 914.1 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:01,122 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 16 procedures, 135 locations, 1 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 706 SDtfs, 24 SDslu, 288 SDs, 0 SdLazy, 92 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1545 GetRequests, 1531 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 242 NumberOfCodeBlocks, 242 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 238 ConstructedInterpolants, 0 QuantifiedInterpolants, 15176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 68/68 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 43]: 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: 175]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2689]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2505]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 264]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2675]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2707]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2661]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2567]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2647]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1525]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2633]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2559]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1469]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 334]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2651]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1507]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1475]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2756]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2742]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 312]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 344]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1057]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2717]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2625]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2731]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 153]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2703]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 833.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -154.3 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 86.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2026.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.7 MB). Peak memory consumption was 214.9 MB. Max. memory is 11.5 GB. * CodeCheck took 1206.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 936.6 MB in the end (delta: 139.3 MB). Peak memory consumption was 139.3 MB. Max. memory is 11.5 GB. * Witness Printer took 206.21 ms. Allocated memory is still 1.2 GB. Free memory was 936.6 MB in the beginning and 914.1 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...