java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:07:35,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:07:35,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:07:35,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:07:35,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:07:35,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:07:35,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:07:35,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:07:35,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:07:35,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:07:35,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:07:35,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:07:35,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:07:35,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:07:35,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:07:35,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:07:35,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:07:35,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:07:35,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:07:35,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:07:35,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:07:35,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:07:35,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:07:35,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:07:35,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:07:35,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:07:35,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:07:35,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:07:35,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:07:35,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:07:35,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:07:35,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:07:35,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:07:35,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:07:35,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:07:35,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:07:35,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:07:35,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:07:35,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:07:35,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:07:35,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:07:35,320 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 [2019-10-13 23:07:35,346 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:07:35,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:07:35,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:07:35,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:07:35,349 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:07:35,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:07:35,350 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:07:35,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:07:35,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:07:35,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:07:35,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:07:35,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:07:35,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:07:35,351 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:07:35,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:07:35,352 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:07:35,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:07:35,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:07:35,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:07:35,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:07:35,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:07:35,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:07:35,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:07:35,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:07:35,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:07:35,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:07:35,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:07:35,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:07:35,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain 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: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:07:35,662 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:07:35,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:07:35,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:07:35,685 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:07:35,686 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:07:35,686 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product16.cil.c [2019-10-13 23:07:35,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b0401702/23b6800ec1124e25962ab48b23e96d29/FLAGbc180c5d6 [2019-10-13 23:07:36,356 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:07:36,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product16.cil.c [2019-10-13 23:07:36,379 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b0401702/23b6800ec1124e25962ab48b23e96d29/FLAGbc180c5d6 [2019-10-13 23:07:36,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b0401702/23b6800ec1124e25962ab48b23e96d29 [2019-10-13 23:07:36,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:07:36,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:07:36,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:07:36,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:07:36,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:07:36,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:07:36" (1/1) ... [2019-10-13 23:07:36,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52145332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:36, skipping insertion in model container [2019-10-13 23:07:36,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:07:36" (1/1) ... [2019-10-13 23:07:36,611 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:07:36,701 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:07:37,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:07:37,516 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:07:37,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:07:37,723 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:07:37,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:37 WrapperNode [2019-10-13 23:07:37,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:07:37,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:07:37,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:07:37,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:07:37,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:37" (1/1) ... [2019-10-13 23:07:37,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:37" (1/1) ... [2019-10-13 23:07:37,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:37" (1/1) ... [2019-10-13 23:07:37,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:37" (1/1) ... [2019-10-13 23:07:37,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:37" (1/1) ... [2019-10-13 23:07:37,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:37" (1/1) ... [2019-10-13 23:07:37,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:37" (1/1) ... [2019-10-13 23:07:37,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:07:37,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:07:37,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:07:37,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:07:37,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:37" (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 [2019-10-13 23:07:38,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:07:38,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:07:38,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:07:38,009 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:07:38,009 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:07:38,009 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:07:38,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:07:38,010 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:07:38,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:07:38,010 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:07:38,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:07:38,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:07:38,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:07:38,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:07:38,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:07:38,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:07:38,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:07:38,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:07:38,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:07:38,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:07:38,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:07:38,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:07:38,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:07:38,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:07:38,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:07:38,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:07:38,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:07:38,015 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:07:38,015 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:07:38,015 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:07:38,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:07:38,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:07:38,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:07:38,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:07:38,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:07:38,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:07:38,017 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:07:38,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:07:38,017 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:07:38,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:07:38,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:07:38,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:07:38,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:07:38,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:07:38,019 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:07:38,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:07:38,019 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:07:38,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:07:38,019 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:07:38,020 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:07:38,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:07:38,020 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:07:38,020 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:07:38,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:07:38,020 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:07:38,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:07:38,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:07:38,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:07:38,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:07:38,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:07:38,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:07:38,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:07:38,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:07:38,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:07:38,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:07:38,023 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:07:38,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 23:07:38,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:07:38,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:07:38,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:07:38,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:07:38,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:07:38,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:07:38,025 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:07:38,025 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:07:38,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:07:38,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:07:38,025 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:07:38,026 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:07:38,026 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:07:38,026 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:07:38,026 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:07:38,026 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:07:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:07:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:07:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:07:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:07:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:07:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:07:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:07:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:07:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:07:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:07:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:07:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:07:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:07:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:07:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:07:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:07:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:07:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:07:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:07:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:07:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:07:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:07:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:07:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:07:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:07:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:07:38,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:07:38,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:07:38,032 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:07:38,032 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:07:38,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:07:38,032 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:07:38,033 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:07:38,033 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:07:38,033 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:07:38,033 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:07:38,033 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:07:38,033 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:07:38,034 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:07:38,034 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:07:38,034 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:07:38,034 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:07:38,034 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:07:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:07:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:07:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:07:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:07:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:07:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:07:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:07:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:07:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:07:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:07:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:07:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:07:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:07:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:07:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:07:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:07:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:07:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:07:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:07:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:07:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:07:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:07:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:07:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:07:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:07:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:07:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:07:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:07:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:07:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:07:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:07:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:07:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:07:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:07:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:07:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:07:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:07:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:07:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:07:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:07:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:07:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:07:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:07:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:07:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:07:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:07:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:07:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:07:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:07:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:07:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:07:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:07:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:07:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:07:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:07:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:07:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:07:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:07:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:07:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:07:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:07:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:07:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:07:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:07:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:07:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:07:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:07:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:07:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:07:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:07:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 23:07:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:07:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:07:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:07:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:07:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:07:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:07:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:07:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:07:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:07:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:07:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:07:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:07:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:07:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:07:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:07:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:07:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:07:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:07:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:07:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:07:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:07:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:07:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:07:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:07:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:07:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:07:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:07:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:07:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:07:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:07:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:07:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:07:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:07:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:07:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:07:38,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:07:42,732 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:07:42,733 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:07:42,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:07:42 BoogieIcfgContainer [2019-10-13 23:07:42,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:07:42,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:07:42,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:07:42,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:07:42,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:07:36" (1/3) ... [2019-10-13 23:07:42,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab2ed32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:07:42, skipping insertion in model container [2019-10-13 23:07:42,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:37" (2/3) ... [2019-10-13 23:07:42,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab2ed32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:07:42, skipping insertion in model container [2019-10-13 23:07:42,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:07:42" (3/3) ... [2019-10-13 23:07:42,744 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product16.cil.c [2019-10-13 23:07:42,754 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:07:42,763 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:07:42,775 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:07:42,804 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:07:42,804 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:07:42,804 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:07:42,805 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:07:42,805 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:07:42,805 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:07:42,805 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:07:42,805 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:07:42,834 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states. [2019-10-13 23:07:42,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 23:07:42,901 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:42,903 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:07:42,904 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:42,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:42,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1031053103, now seen corresponding path program 1 times [2019-10-13 23:07:42,922 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:42,922 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829722551] [2019-10-13 23:07:42,922 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:42,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:42,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:43,508 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:07:43,509 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829722551] [2019-10-13 23:07:43,517 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:43,517 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:07:43,517 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879918407] [2019-10-13 23:07:43,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:07:43,527 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:43,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:07:43,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:07:43,545 INFO L87 Difference]: Start difference. First operand 348 states. Second operand 2 states. [2019-10-13 23:07:43,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:43,610 INFO L93 Difference]: Finished difference Result 504 states and 595 transitions. [2019-10-13 23:07:43,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:07:43,612 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-13 23:07:43,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:43,634 INFO L225 Difference]: With dead ends: 504 [2019-10-13 23:07:43,634 INFO L226 Difference]: Without dead ends: 327 [2019-10-13 23:07:43,646 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:07:43,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2019-10-13 23:07:43,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2019-10-13 23:07:43,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2019-10-13 23:07:43,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 386 transitions. [2019-10-13 23:07:43,740 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 386 transitions. Word has length 114 [2019-10-13 23:07:43,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:43,744 INFO L462 AbstractCegarLoop]: Abstraction has 327 states and 386 transitions. [2019-10-13 23:07:43,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:07:43,744 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 386 transitions. [2019-10-13 23:07:43,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-13 23:07:43,754 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:43,754 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:07:43,754 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:43,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:43,755 INFO L82 PathProgramCache]: Analyzing trace with hash -905373975, now seen corresponding path program 1 times [2019-10-13 23:07:43,756 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:43,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747996667] [2019-10-13 23:07:43,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:43,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:43,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:07:44,031 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747996667] [2019-10-13 23:07:44,032 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:44,032 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:07:44,032 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719065631] [2019-10-13 23:07:44,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:07:44,038 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:44,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:07:44,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:44,039 INFO L87 Difference]: Start difference. First operand 327 states and 386 transitions. Second operand 3 states. [2019-10-13 23:07:44,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:44,126 INFO L93 Difference]: Finished difference Result 489 states and 567 transitions. [2019-10-13 23:07:44,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:07:44,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-13 23:07:44,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:44,140 INFO L225 Difference]: With dead ends: 489 [2019-10-13 23:07:44,140 INFO L226 Difference]: Without dead ends: 329 [2019-10-13 23:07:44,144 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:44,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2019-10-13 23:07:44,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2019-10-13 23:07:44,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2019-10-13 23:07:44,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 388 transitions. [2019-10-13 23:07:44,196 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 388 transitions. Word has length 115 [2019-10-13 23:07:44,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:44,197 INFO L462 AbstractCegarLoop]: Abstraction has 329 states and 388 transitions. [2019-10-13 23:07:44,197 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:07:44,197 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 388 transitions. [2019-10-13 23:07:44,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-13 23:07:44,201 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:44,201 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:07:44,201 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:44,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:44,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1194276173, now seen corresponding path program 1 times [2019-10-13 23:07:44,202 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:44,202 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514183468] [2019-10-13 23:07:44,202 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:44,202 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:44,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:07:44,341 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514183468] [2019-10-13 23:07:44,342 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:44,342 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:07:44,342 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976332470] [2019-10-13 23:07:44,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:07:44,343 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:44,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:07:44,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:44,344 INFO L87 Difference]: Start difference. First operand 329 states and 388 transitions. Second operand 3 states. [2019-10-13 23:07:44,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:44,433 INFO L93 Difference]: Finished difference Result 640 states and 783 transitions. [2019-10-13 23:07:44,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:07:44,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-10-13 23:07:44,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:44,442 INFO L225 Difference]: With dead ends: 640 [2019-10-13 23:07:44,442 INFO L226 Difference]: Without dead ends: 369 [2019-10-13 23:07:44,445 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:44,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2019-10-13 23:07:44,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 368. [2019-10-13 23:07:44,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2019-10-13 23:07:44,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 456 transitions. [2019-10-13 23:07:44,489 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 456 transitions. Word has length 120 [2019-10-13 23:07:44,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:44,490 INFO L462 AbstractCegarLoop]: Abstraction has 368 states and 456 transitions. [2019-10-13 23:07:44,490 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:07:44,491 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 456 transitions. [2019-10-13 23:07:44,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-13 23:07:44,496 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:44,496 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:07:44,497 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:44,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:44,497 INFO L82 PathProgramCache]: Analyzing trace with hash -2035849430, now seen corresponding path program 1 times [2019-10-13 23:07:44,497 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:44,498 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394156186] [2019-10-13 23:07:44,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:44,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:44,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:44,758 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:07:44,759 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394156186] [2019-10-13 23:07:44,761 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048267336] [2019-10-13 23:07:44,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:07:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:45,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:07:45,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:07:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:07:45,403 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:07:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:07:45,685 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [277945224] [2019-10-13 23:07:45,719 INFO L162 IcfgInterpreter]: Started Sifa with 110 locations of interest [2019-10-13 23:07:45,719 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:07:45,729 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:07:45,739 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:07:45,740 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:08:11,698 WARN L191 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-13 23:08:15,286 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 274 DAG size of output: 223 [2019-10-13 23:08:15,613 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 679 [2019-10-13 23:08:15,973 WARN L191 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 679 [2019-10-13 23:08:16,541 WARN L191 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 679 [2019-10-13 23:08:16,822 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 439 [2019-10-13 23:08:17,751 WARN L191 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 970