java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-21 08:29:33,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-21 08:29:33,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-21 08:29:33,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-21 08:29:33,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-21 08:29:33,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-21 08:29:33,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-21 08:29:33,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-21 08:29:33,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-21 08:29:33,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-21 08:29:33,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-21 08:29:33,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-21 08:29:33,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-21 08:29:33,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-21 08:29:33,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-21 08:29:33,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-21 08:29:33,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-21 08:29:33,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-21 08:29:33,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-21 08:29:33,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-21 08:29:33,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-21 08:29:33,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-21 08:29:33,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-21 08:29:33,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-21 08:29:33,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-21 08:29:33,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-21 08:29:33,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-21 08:29:33,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-21 08:29:33,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-21 08:29:33,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-21 08:29:33,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-21 08:29:33,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-21 08:29:33,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-21 08:29:34,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-21 08:29:34,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-21 08:29:34,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-21 08:29:34,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-21 08:29:34,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-21 08:29:34,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-21 08:29:34,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-21 08:29:34,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-21 08:29:34,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-21 08:29:34,030 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-21 08:29:34,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-21 08:29:34,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-21 08:29:34,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-21 08:29:34,033 INFO L138 SettingsManager]: * Use SBE=true [2019-09-21 08:29:34,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-21 08:29:34,033 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-21 08:29:34,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-21 08:29:34,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-21 08:29:34,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-21 08:29:34,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-21 08:29:34,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-21 08:29:34,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-21 08:29:34,036 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-21 08:29:34,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-21 08:29:34,036 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-21 08:29:34,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-21 08:29:34,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-21 08:29:34,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-21 08:29:34,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-21 08:29:34,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-21 08:29:34,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-21 08:29:34,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-21 08:29:34,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-21 08:29:34,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-21 08:29:34,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-21 08:29:34,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-21 08:29:34,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-21 08:29:34,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-09-21 08:29:34,108 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-21 08:29:34,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-21 08:29:34,127 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-21 08:29:34,129 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-21 08:29:34,129 INFO L275 PluginConnector]: CDTParser initialized [2019-09-21 08:29:34,130 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product36.cil.c [2019-09-21 08:29:34,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e35aca8a9/36a6a6415ec543da91a4f77e87751ddb/FLAG3fb474ae6 [2019-09-21 08:29:34,783 INFO L306 CDTParser]: Found 1 translation units. [2019-09-21 08:29:34,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product36.cil.c [2019-09-21 08:29:34,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e35aca8a9/36a6a6415ec543da91a4f77e87751ddb/FLAG3fb474ae6 [2019-09-21 08:29:35,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e35aca8a9/36a6a6415ec543da91a4f77e87751ddb [2019-09-21 08:29:35,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-21 08:29:35,223 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-21 08:29:35,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-21 08:29:35,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-21 08:29:35,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-21 08:29:35,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 08:29:35" (1/1) ... [2019-09-21 08:29:35,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50a380d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:29:35, skipping insertion in model container [2019-09-21 08:29:35,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 08:29:35" (1/1) ... [2019-09-21 08:29:35,241 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-21 08:29:35,320 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-21 08:29:36,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 08:29:36,116 INFO L188 MainTranslator]: Completed pre-run [2019-09-21 08:29:36,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 08:29:36,320 INFO L192 MainTranslator]: Completed translation [2019-09-21 08:29:36,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:29:36 WrapperNode [2019-09-21 08:29:36,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-21 08:29:36,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-21 08:29:36,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-21 08:29:36,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-21 08:29:36,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:29:36" (1/1) ... [2019-09-21 08:29:36,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:29:36" (1/1) ... [2019-09-21 08:29:36,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:29:36" (1/1) ... [2019-09-21 08:29:36,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:29:36" (1/1) ... [2019-09-21 08:29:36,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:29:36" (1/1) ... [2019-09-21 08:29:36,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:29:36" (1/1) ... [2019-09-21 08:29:36,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:29:36" (1/1) ... [2019-09-21 08:29:36,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-21 08:29:36,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-21 08:29:36,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-21 08:29:36,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-21 08:29:36,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 08:29:36" (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 [2019-09-21 08:29:36,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-21 08:29:36,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-21 08:29:36,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-21 08:29:36,562 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-21 08:29:36,562 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-21 08:29:36,563 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-21 08:29:36,563 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-21 08:29:36,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-21 08:29:36,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-21 08:29:36,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-21 08:29:36,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-21 08:29:36,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-21 08:29:36,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-21 08:29:36,564 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-21 08:29:36,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-21 08:29:36,565 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-21 08:29:36,567 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-21 08:29:36,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-21 08:29:36,568 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-21 08:29:36,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-21 08:29:36,568 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-21 08:29:36,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-21 08:29:36,570 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-21 08:29:36,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-21 08:29:36,571 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-21 08:29:36,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-21 08:29:36,573 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-21 08:29:36,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-21 08:29:36,573 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-21 08:29:36,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-21 08:29:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-21 08:29:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-21 08:29:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-21 08:29:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-21 08:29:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-21 08:29:36,575 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-21 08:29:36,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-21 08:29:36,575 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-21 08:29:36,575 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-21 08:29:36,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-21 08:29:36,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-21 08:29:36,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-21 08:29:36,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-21 08:29:36,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-21 08:29:36,577 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-21 08:29:36,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-21 08:29:36,577 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-21 08:29:36,577 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-21 08:29:36,577 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-21 08:29:36,577 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-09-21 08:29:36,578 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-21 08:29:36,578 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-21 08:29:36,578 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2019-09-21 08:29:36,578 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-09-21 08:29:36,578 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-21 08:29:36,578 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-21 08:29:36,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-21 08:29:36,579 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-21 08:29:36,579 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-21 08:29:36,579 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-21 08:29:36,580 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-21 08:29:36,580 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-09-21 08:29:36,580 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-09-21 08:29:36,581 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-21 08:29:36,581 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-21 08:29:36,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-21 08:29:36,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-21 08:29:36,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-21 08:29:36,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-21 08:29:36,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-21 08:29:36,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-21 08:29:36,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-21 08:29:36,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-21 08:29:36,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-21 08:29:36,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-21 08:29:36,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-21 08:29:36,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-21 08:29:36,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-21 08:29:36,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-21 08:29:36,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-21 08:29:36,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-21 08:29:36,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-21 08:29:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-21 08:29:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-21 08:29:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-21 08:29:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-09-21 08:29:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-21 08:29:36,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-21 08:29:36,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-21 08:29:36,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-21 08:29:36,587 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-21 08:29:36,587 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-21 08:29:36,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-21 08:29:36,587 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-21 08:29:36,587 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-09-21 08:29:36,587 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-09-21 08:29:36,587 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-21 08:29:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-21 08:29:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-21 08:29:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-21 08:29:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-21 08:29:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-21 08:29:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-21 08:29:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-21 08:29:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-21 08:29:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-21 08:29:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-21 08:29:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-21 08:29:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-21 08:29:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-21 08:29:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-21 08:29:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-21 08:29:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-21 08:29:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-21 08:29:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-21 08:29:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-21 08:29:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-21 08:29:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-21 08:29:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-21 08:29:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-21 08:29:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-21 08:29:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-21 08:29:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-21 08:29:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-21 08:29:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-21 08:29:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-21 08:29:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-21 08:29:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-21 08:29:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-21 08:29:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-21 08:29:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-21 08:29:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-21 08:29:36,593 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-21 08:29:36,593 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-21 08:29:36,593 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-21 08:29:36,593 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-21 08:29:36,593 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-21 08:29:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-21 08:29:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-21 08:29:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-21 08:29:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-21 08:29:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-21 08:29:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-21 08:29:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-21 08:29:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-21 08:29:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-21 08:29:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-21 08:29:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-21 08:29:36,596 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-21 08:29:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-21 08:29:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-21 08:29:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-21 08:29:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-21 08:29:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-21 08:29:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-21 08:29:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-21 08:29:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-21 08:29:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-21 08:29:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-21 08:29:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-21 08:29:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-21 08:29:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-21 08:29:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-21 08:29:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-21 08:29:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-21 08:29:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-21 08:29:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-21 08:29:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-21 08:29:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-21 08:29:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-21 08:29:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-21 08:29:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-21 08:29:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-09-21 08:29:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-09-21 08:29:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-21 08:29:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-09-21 08:29:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2019-09-21 08:29:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-09-21 08:29:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-09-21 08:29:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-21 08:29:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-21 08:29:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-21 08:29:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-21 08:29:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-21 08:29:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-21 08:29:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-21 08:29:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-21 08:29:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-21 08:29:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-21 08:29:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-21 08:29:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-21 08:29:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-21 08:29:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-21 08:29:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-21 08:29:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-21 08:29:36,604 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-09-21 08:29:36,604 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-21 08:29:36,604 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-09-21 08:29:36,604 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-21 08:29:36,604 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-21 08:29:36,604 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-21 08:29:36,604 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-21 08:29:36,605 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-21 08:29:36,605 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-21 08:29:36,605 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-21 08:29:36,605 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-21 08:29:36,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-21 08:29:36,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-21 08:29:36,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-21 08:29:40,705 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-21 08:29:40,705 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-21 08:29:40,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 08:29:40 BoogieIcfgContainer [2019-09-21 08:29:40,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-21 08:29:40,708 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-21 08:29:40,708 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-21 08:29:40,708 INFO L275 PluginConnector]: Sifa initialized [2019-09-21 08:29:40,710 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 08:29:40" (1/1) ... [2019-09-21 08:29:40,710 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_QUICK ♦ Intern Fluid=SizeLimitFluid [2019-09-21 08:29:40,744 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-21 08:29:40,745 INFO L169 IcfgInterpreter]: Building call graph [2019-09-21 08:29:40,758 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-21 08:29:40,770 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-21 08:29:40,775 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-21 08:29:59,730 WARN L191 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-09-21 08:30:02,626 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 267 DAG size of output: 217 [2019-09-21 08:30:02,966 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 620 [2019-09-21 08:30:03,246 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 620 [2019-09-21 08:30:03,468 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 620 [2019-09-21 08:30:03,499 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 700 for LOIs [2019-09-21 08:30:03,656 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 698 for LOIs [2019-09-21 08:30:04,305 WARN L191 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 730 [2019-09-21 08:30:04,634 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 730 [2019-09-21 08:30:05,499 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 734 [2019-09-21 08:30:06,038 WARN L191 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 734 [2019-09-21 08:30:06,284 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 734 [2019-09-21 08:30:06,514 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 734 [2019-09-21 08:30:07,502 WARN L191 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 748 DAG size of output: 747 [2019-09-21 08:30:08,248 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 747 DAG size of output: 747 [2019-09-21 08:30:08,988 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 748 DAG size of output: 747 [2019-09-21 08:30:09,636 WARN L191 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 747 DAG size of output: 747 [2019-09-21 08:30:10,357 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 748 DAG size of output: 747 [2019-09-21 08:30:11,039 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 747 DAG size of output: 747 [2019-09-21 08:30:11,754 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 748 DAG size of output: 747 [2019-09-21 08:30:12,399 WARN L191 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 747 DAG size of output: 747 [2019-09-21 08:30:13,087 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 748 DAG size of output: 747 [2019-09-21 08:30:13,734 WARN L191 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 747 DAG size of output: 747 [2019-09-21 08:30:14,432 WARN L191 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 748 DAG size of output: 747 [2019-09-21 08:30:15,071 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 747 DAG size of output: 747 [2019-09-21 08:30:15,726 WARN L191 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 748 DAG size of output: 747 [2019-09-21 08:30:16,401 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 747 DAG size of output: 747 [2019-09-21 08:30:17,053 WARN L191 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 748 DAG size of output: 747