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 0.1.24-13a467a-m [2019-10-15 03:12:12,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:12:12,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:12:12,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:12:12,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:12:12,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:12:12,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:12:12,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:12:12,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:12:12,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:12:12,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:12:12,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:12:12,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:12:12,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:12:12,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:12:12,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:12:12,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:12:12,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:12:12,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:12:12,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:12:12,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:12:12,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:12:12,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:12:12,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:12:12,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:12:12,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:12:12,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:12:12,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:12:12,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:12:12,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:12:12,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:12:12,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:12:12,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:12:12,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:12:12,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:12:12,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:12:12,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:12:12,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:12:12,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:12:12,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:12:12,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:12:12,427 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 [2019-10-15 03:12:12,444 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:12:12,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:12:12,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:12:12,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:12:12,446 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:12:12,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:12:12,447 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:12:12,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:12:12,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:12:12,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:12:12,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:12:12,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:12:12,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:12:12,448 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:12:12,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:12:12,448 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:12:12,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:12:12,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:12:12,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:12:12,449 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:12:12,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:12:12,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:12:12,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:12:12,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:12:12,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:12:12,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:12:12,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:12:12,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:12:12,451 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 [2019-10-15 03:12:12,733 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:12:12,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:12:12,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:12:12,752 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:12:12,753 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:12:12,754 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product16.cil.c [2019-10-15 03:12:12,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07cadf922/a03d8802bf934f51ac852386255c1fcf/FLAG05fc21b8b [2019-10-15 03:12:13,508 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:12:13,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product16.cil.c [2019-10-15 03:12:13,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07cadf922/a03d8802bf934f51ac852386255c1fcf/FLAG05fc21b8b [2019-10-15 03:12:13,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07cadf922/a03d8802bf934f51ac852386255c1fcf [2019-10-15 03:12:13,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:12:13,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:12:13,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:12:13,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:12:13,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:12:13,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:12:13" (1/1) ... [2019-10-15 03:12:13,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac730e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:12:13, skipping insertion in model container [2019-10-15 03:12:13,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:12:13" (1/1) ... [2019-10-15 03:12:13,722 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:12:13,805 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:12:14,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:12:14,526 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:12:14,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:12:14,797 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:12:14,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:12:14 WrapperNode [2019-10-15 03:12:14,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:12:14,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:12:14,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:12:14,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:12:14,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:12:14" (1/1) ... [2019-10-15 03:12:14,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:12:14" (1/1) ... [2019-10-15 03:12:14,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:12:14" (1/1) ... [2019-10-15 03:12:14,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:12:14" (1/1) ... [2019-10-15 03:12:14,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:12:14" (1/1) ... [2019-10-15 03:12:14,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:12:14" (1/1) ... [2019-10-15 03:12:14,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:12:14" (1/1) ... [2019-10-15 03:12:14,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:12:14,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:12:14,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:12:14,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:12:14,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:12:14" (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 [2019-10-15 03:12:15,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:12:15,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:12:15,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:12:15,072 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:12:15,072 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:12:15,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:12:15,074 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:12:15,074 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:12:15,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:12:15,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:12:15,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:12:15,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:12:15,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:12:15,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:12:15,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:12:15,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:12:15,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:12:15,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:12:15,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:12:15,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:12:15,081 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:12:15,081 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:12:15,082 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:12:15,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:12:15,082 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:12:15,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:12:15,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:12:15,083 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:12:15,083 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:12:15,083 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:12:15,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:12:15,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:12:15,085 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:12:15,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:12:15,085 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:12:15,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:12:15,086 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:12:15,086 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:12:15,086 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:12:15,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:12:15,086 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:12:15,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:12:15,087 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:12:15,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:12:15,087 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:12:15,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:12:15,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:12:15,088 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:12:15,088 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:12:15,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:12:15,088 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:12:15,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:12:15,089 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:12:15,089 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:12:15,089 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:12:15,089 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:12:15,089 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:12:15,089 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:12:15,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:12:15,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:12:15,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:12:15,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:12:15,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:12:15,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:12:15,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:12:15,091 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:12:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 03:12:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:12:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:12:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:12:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:12:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:12:15,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:12:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:12:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:12:15,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:12:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:12:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:12:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:12:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:12:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:12:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:12:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:12:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:12:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:12:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:12:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:12:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:12:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:12:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:12:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:12:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:12:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:12:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:12:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:12:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:12:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:12:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:12:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:12:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:12:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:12:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:12:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:12:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:12:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:12:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:12:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:12:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:12:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:12:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:12:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:12:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:12:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:12:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:12:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:12:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:12:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:12:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:12:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:12:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:12:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:12:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:12:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:12:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:12:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:12:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:12:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:12:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:12:15,106 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:12:15,106 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:12:15,106 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:12:15,106 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:12:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:12:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:12:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:12:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:12:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:12:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:12:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:12:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:12:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:12:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:12:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:12:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:12:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:12:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:12:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:12:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:12:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:12:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:12:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:12:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:12:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:12:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:12:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:12:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:12:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:12:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:12:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:12:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:12:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:12:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:12:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:12:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:12:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:12:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:12:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:12:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:12:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:12:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:12:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:12:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:12:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:12:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:12:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:12:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:12:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:12:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:12:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:12:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:12:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:12:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:12:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:12:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:12:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:12:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:12:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:12:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:12:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:12:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:12:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:12:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:12:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:12:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:12:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:12:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:12:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 03:12:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:12:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:12:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:12:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:12:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:12:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:12:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:12:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:12:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:12:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:12:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:12:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:12:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:12:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:12:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:12:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:12:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:12:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:12:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:12:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:12:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:12:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:12:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:12:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:12:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:12:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:12:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:12:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:12:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:12:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:12:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:12:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:12:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:12:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:12:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:12:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:12:19,819 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:12:19,819 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:12:19,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:12:19 BoogieIcfgContainer [2019-10-15 03:12:19,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:12:19,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:12:19,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:12:19,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:12:19,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:12:13" (1/3) ... [2019-10-15 03:12:19,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc00d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:12:19, skipping insertion in model container [2019-10-15 03:12:19,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:12:14" (2/3) ... [2019-10-15 03:12:19,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc00d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:12:19, skipping insertion in model container [2019-10-15 03:12:19,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:12:19" (3/3) ... [2019-10-15 03:12:19,830 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product16.cil.c [2019-10-15 03:12:19,840 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:12:19,854 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:12:19,867 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:12:19,911 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:12:19,911 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:12:19,911 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:12:19,911 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:12:19,911 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:12:19,912 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:12:19,912 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:12:19,912 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:12:19,949 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states. [2019-10-15 03:12:19,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-15 03:12:19,969 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:12:19,971 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] [2019-10-15 03:12:19,976 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:12:19,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:12:19,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1031053103, now seen corresponding path program 1 times [2019-10-15 03:12:19,989 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:12:19,989 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540098806] [2019-10-15 03:12:19,990 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:12:19,990 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:12:19,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:12:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:12:20,567 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:12:20,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540098806] [2019-10-15 03:12:20,571 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:12:20,572 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:12:20,572 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789546006] [2019-10-15 03:12:20,580 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:12:20,580 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:12:20,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:12:20,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:12:20,598 INFO L87 Difference]: Start difference. First operand 348 states. Second operand 2 states. [2019-10-15 03:12:20,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:12:20,698 INFO L93 Difference]: Finished difference Result 504 states and 595 transitions. [2019-10-15 03:12:20,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:12:20,700 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-15 03:12:20,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:12:20,734 INFO L225 Difference]: With dead ends: 504 [2019-10-15 03:12:20,734 INFO L226 Difference]: Without dead ends: 327 [2019-10-15 03:12:20,744 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 [2019-10-15 03:12:20,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2019-10-15 03:12:20,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2019-10-15 03:12:20,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2019-10-15 03:12:20,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 386 transitions. [2019-10-15 03:12:20,825 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 386 transitions. Word has length 114 [2019-10-15 03:12:20,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:12:20,827 INFO L462 AbstractCegarLoop]: Abstraction has 327 states and 386 transitions. [2019-10-15 03:12:20,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:12:20,827 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 386 transitions. [2019-10-15 03:12:20,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-15 03:12:20,832 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:12:20,832 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] [2019-10-15 03:12:20,833 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:12:20,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:12:20,833 INFO L82 PathProgramCache]: Analyzing trace with hash -905373975, now seen corresponding path program 1 times [2019-10-15 03:12:20,833 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:12:20,833 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257136902] [2019-10-15 03:12:20,834 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:12:20,834 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:12:20,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:12:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:12:21,039 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:12:21,040 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257136902] [2019-10-15 03:12:21,040 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:12:21,040 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:12:21,040 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541755866] [2019-10-15 03:12:21,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:12:21,046 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:12:21,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:12:21,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:12:21,047 INFO L87 Difference]: Start difference. First operand 327 states and 386 transitions. Second operand 3 states. [2019-10-15 03:12:21,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:12:21,096 INFO L93 Difference]: Finished difference Result 489 states and 567 transitions. [2019-10-15 03:12:21,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:12:21,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-15 03:12:21,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:12:21,100 INFO L225 Difference]: With dead ends: 489 [2019-10-15 03:12:21,100 INFO L226 Difference]: Without dead ends: 329 [2019-10-15 03:12:21,102 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 [2019-10-15 03:12:21,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2019-10-15 03:12:21,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2019-10-15 03:12:21,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2019-10-15 03:12:21,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 388 transitions. [2019-10-15 03:12:21,132 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 388 transitions. Word has length 115 [2019-10-15 03:12:21,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:12:21,132 INFO L462 AbstractCegarLoop]: Abstraction has 329 states and 388 transitions. [2019-10-15 03:12:21,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:12:21,133 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 388 transitions. [2019-10-15 03:12:21,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-15 03:12:21,137 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:12:21,138 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] [2019-10-15 03:12:21,138 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:12:21,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:12:21,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1194276173, now seen corresponding path program 1 times [2019-10-15 03:12:21,139 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:12:21,139 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124006728] [2019-10-15 03:12:21,139 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:12:21,139 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:12:21,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:12:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:12:21,375 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:12:21,376 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124006728] [2019-10-15 03:12:21,376 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:12:21,376 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:12:21,377 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116044520] [2019-10-15 03:12:21,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:12:21,379 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:12:21,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:12:21,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:12:21,380 INFO L87 Difference]: Start difference. First operand 329 states and 388 transitions. Second operand 3 states. [2019-10-15 03:12:21,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:12:21,422 INFO L93 Difference]: Finished difference Result 640 states and 783 transitions. [2019-10-15 03:12:21,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:12:21,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-10-15 03:12:21,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:12:21,430 INFO L225 Difference]: With dead ends: 640 [2019-10-15 03:12:21,430 INFO L226 Difference]: Without dead ends: 369 [2019-10-15 03:12:21,432 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 [2019-10-15 03:12:21,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2019-10-15 03:12:21,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 368. [2019-10-15 03:12:21,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2019-10-15 03:12:21,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 456 transitions. [2019-10-15 03:12:21,478 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 456 transitions. Word has length 120 [2019-10-15 03:12:21,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:12:21,479 INFO L462 AbstractCegarLoop]: Abstraction has 368 states and 456 transitions. [2019-10-15 03:12:21,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:12:21,479 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 456 transitions. [2019-10-15 03:12:21,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-15 03:12:21,486 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:12:21,486 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] [2019-10-15 03:12:21,487 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:12:21,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:12:21,487 INFO L82 PathProgramCache]: Analyzing trace with hash -2035849430, now seen corresponding path program 1 times [2019-10-15 03:12:21,487 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:12:21,488 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798741442] [2019-10-15 03:12:21,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:12:21,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:12:21,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:12:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:12:21,742 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:12:21,742 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798741442] [2019-10-15 03:12:21,742 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283334305] [2019-10-15 03:12:21,743 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 [2019-10-15 03:12:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:12:22,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:12:22,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:12:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:12:22,466 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:12:22,723 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:12:22,724 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1312265141] [2019-10-15 03:12:22,765 INFO L162 IcfgInterpreter]: Started Sifa with 110 locations of interest [2019-10-15 03:12:22,767 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:12:22,775 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:12:22,786 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:12:22,787 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:12:49,121 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-15 03:12:52,437 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 274 DAG size of output: 223 [2019-10-15 03:12:52,816 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 679 [2019-10-15 03:12:53,282 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 679 [2019-10-15 03:12:53,682 WARN L191 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 679 [2019-10-15 03:12:53,955 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 439 [2019-10-15 03:12:54,926 WARN L191 SmtUtils]: Spent 968.00 ms on a formula simplification that was a NOOP. DAG size: 970