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_spec27_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:09:08,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:09:08,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:09:08,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:09:08,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:09:08,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:09:08,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:09:08,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:09:08,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:09:08,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:09:08,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:09:08,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:09:08,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:09:08,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:09:08,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:09:08,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:09:08,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:09:08,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:09:08,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:09:08,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:09:08,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:09:08,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:09:08,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:09:08,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:09:08,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:09:08,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:09:08,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:09:08,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:09:08,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:09:08,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:09:08,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:09:08,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:09:08,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:09:08,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:09:08,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:09:08,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:09:08,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:09:08,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:09:08,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:09:08,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:09:08,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:09:08,413 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 23:09:08,427 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:09:08,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:09:08,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:09:08,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:09:08,429 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:09:08,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:09:08,429 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:09:08,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:09:08,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:09:08,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:09:08,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:09:08,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:09:08,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:09:08,431 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:09:08,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:09:08,431 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:09:08,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:09:08,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:09:08,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:09:08,432 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:09:08,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:09:08,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:08,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:09:08,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:09:08,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:09:08,433 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:09:08,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:09:08,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:09:08,434 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 23:09:08,710 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:09:08,727 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:09:08,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:09:08,731 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:09:08,732 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:09:08,732 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product34.cil.c [2019-10-13 23:09:08,810 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5deb9131f/72d57659acd94fcab096de0b9ed14dbe/FLAG9fca61ca2 [2019-10-13 23:09:09,413 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:09:09,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product34.cil.c [2019-10-13 23:09:09,438 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5deb9131f/72d57659acd94fcab096de0b9ed14dbe/FLAG9fca61ca2 [2019-10-13 23:09:09,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5deb9131f/72d57659acd94fcab096de0b9ed14dbe [2019-10-13 23:09:09,693 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:09:09,694 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:09:09,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:09,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:09:09,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:09:09,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:09" (1/1) ... [2019-10-13 23:09:09,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21180631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:09, skipping insertion in model container [2019-10-13 23:09:09,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:09" (1/1) ... [2019-10-13 23:09:09,713 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:09:09,798 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:09:10,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:10,574 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:09:10,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:10,794 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:09:10,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10 WrapperNode [2019-10-13 23:09:10,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:10,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:09:10,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:09:10,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:09:10,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (1/1) ... [2019-10-13 23:09:10,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (1/1) ... [2019-10-13 23:09:10,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (1/1) ... [2019-10-13 23:09:10,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (1/1) ... [2019-10-13 23:09:10,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (1/1) ... [2019-10-13 23:09:10,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (1/1) ... [2019-10-13 23:09:10,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (1/1) ... [2019-10-13 23:09:10,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:09:10,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:09:10,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:09:10,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:09:10,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (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 23:09:11,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:09:11,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:09:11,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:11,086 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:09:11,087 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:09:11,088 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:09:11,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:09:11,088 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:09:11,089 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:09:11,089 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:09:11,089 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:09:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:09:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:09:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:09:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:09:11,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:09:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:09:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:09:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:09:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:09:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:09:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:09:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:09:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:09:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:09:11,095 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:09:11,095 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:09:11,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:09:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:09:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:09:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:09:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:09:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:09:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:09:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:09:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:09:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:09:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:09:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:09:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:09:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:09:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:09:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:09:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:09:11,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:09:11,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:09:11,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:09:11,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:09:11,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:09:11,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:09:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:09:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:09:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:09:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:09:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:09:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:09:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:09:11,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:09:11,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:09:11,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:09:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:09:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:09:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:09:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:09:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:09:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:09:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:09:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:09:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:09:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:09:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:09:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:09:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:09:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:09:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:09:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:09:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:09:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:09:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:09:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:09:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:09:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:09:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:09:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:09:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:09:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:09:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:09:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:09:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:09:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:09:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:09:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:09:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:09:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:09:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:09:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:09:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:09:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:09:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:09:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:09:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:09:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:09:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:09:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:09:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:09:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:09:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:09:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:09:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:09:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:09:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:09:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:09:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:09:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:09:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:09:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:09:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:09:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:09:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:09:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:09:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:09:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:09:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:09:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:09:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:09:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:09:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:09:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:09:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:09:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:09:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:09:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:09:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:09:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:09:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:09:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:09:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:09:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:09:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:09:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:09:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:09:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:09:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:09:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:09:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:09:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:09:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:09:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:09:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:09:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:09:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:09:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:09:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:09:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:09:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:09:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:09:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:09:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:09:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:09:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:09:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:09:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:09:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:09:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:09:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:09:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:09:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:09:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:09:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:09:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:09:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:09:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:09:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:09:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:09:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:09:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:09:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:09:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:09:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:09:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:09:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:09:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:09:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:09:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:09:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:09:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:09:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:09:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:09:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:09:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:09:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:09:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:09:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:09:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:09:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:09:11,142 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:09:11,142 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:09:11,142 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:09:11,142 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:09:11,142 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:09:11,142 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:09:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:09:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:09:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:09:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:09:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:09:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:09:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:09:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:09:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:09:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:09:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:09:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:09:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:09:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:09:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:09:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:09:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:09:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:09:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:09:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:09:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:09:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:09:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:09:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:09:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:09:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:09:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:09:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:09:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:09:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:09:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:09:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:09:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:09:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:09:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:09:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:09:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:09:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:09:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:09:15,497 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:09:15,497 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:09:15,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:15 BoogieIcfgContainer [2019-10-13 23:09:15,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:09:15,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:09:15,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:09:15,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:09:15,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:09:09" (1/3) ... [2019-10-13 23:09:15,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46dd344a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:15, skipping insertion in model container [2019-10-13 23:09:15,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (2/3) ... [2019-10-13 23:09:15,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46dd344a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:15, skipping insertion in model container [2019-10-13 23:09:15,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:15" (3/3) ... [2019-10-13 23:09:15,506 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product34.cil.c [2019-10-13 23:09:15,516 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:09:15,525 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:09:15,535 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:09:15,564 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:09:15,564 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:09:15,564 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:09:15,564 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:09:15,565 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:09:15,565 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:09:15,565 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:09:15,565 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:09:15,595 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states. [2019-10-13 23:09:15,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 23:09:15,615 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:15,616 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:15,618 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:15,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:15,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1996072285, now seen corresponding path program 1 times [2019-10-13 23:09:15,634 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:15,634 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140708143] [2019-10-13 23:09:15,635 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:15,636 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:15,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:16,340 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:16,341 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140708143] [2019-10-13 23:09:16,342 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:16,342 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:09:16,342 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372970034] [2019-10-13 23:09:16,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:09:16,350 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:16,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:09:16,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:09:16,366 INFO L87 Difference]: Start difference. First operand 457 states. Second operand 2 states. [2019-10-13 23:09:16,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:16,444 INFO L93 Difference]: Finished difference Result 696 states and 837 transitions. [2019-10-13 23:09:16,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:09:16,446 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 174 [2019-10-13 23:09:16,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:16,472 INFO L225 Difference]: With dead ends: 696 [2019-10-13 23:09:16,472 INFO L226 Difference]: Without dead ends: 430 [2019-10-13 23:09:16,483 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 23:09:16,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2019-10-13 23:09:16,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2019-10-13 23:09:16,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2019-10-13 23:09:16,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 510 transitions. [2019-10-13 23:09:16,608 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 510 transitions. Word has length 174 [2019-10-13 23:09:16,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:16,610 INFO L462 AbstractCegarLoop]: Abstraction has 430 states and 510 transitions. [2019-10-13 23:09:16,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:09:16,610 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 510 transitions. [2019-10-13 23:09:16,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-13 23:09:16,616 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:16,617 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:16,617 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:16,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:16,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1369392525, now seen corresponding path program 1 times [2019-10-13 23:09:16,618 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:16,618 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130638434] [2019-10-13 23:09:16,618 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:16,618 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:16,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:16,924 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:16,925 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130638434] [2019-10-13 23:09:16,925 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:16,925 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:16,926 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117828033] [2019-10-13 23:09:16,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:16,929 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:16,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:16,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:16,930 INFO L87 Difference]: Start difference. First operand 430 states and 510 transitions. Second operand 3 states. [2019-10-13 23:09:17,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:17,021 INFO L93 Difference]: Finished difference Result 681 states and 800 transitions. [2019-10-13 23:09:17,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:17,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2019-10-13 23:09:17,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:17,033 INFO L225 Difference]: With dead ends: 681 [2019-10-13 23:09:17,034 INFO L226 Difference]: Without dead ends: 432 [2019-10-13 23:09:17,038 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 23:09:17,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2019-10-13 23:09:17,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2019-10-13 23:09:17,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2019-10-13 23:09:17,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 512 transitions. [2019-10-13 23:09:17,088 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 512 transitions. Word has length 175 [2019-10-13 23:09:17,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:17,089 INFO L462 AbstractCegarLoop]: Abstraction has 432 states and 512 transitions. [2019-10-13 23:09:17,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:17,090 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 512 transitions. [2019-10-13 23:09:17,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-13 23:09:17,097 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:17,097 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:17,098 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:17,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:17,098 INFO L82 PathProgramCache]: Analyzing trace with hash 2059788603, now seen corresponding path program 1 times [2019-10-13 23:09:17,098 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:17,098 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565210250] [2019-10-13 23:09:17,099 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:17,099 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:17,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:17,352 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:17,353 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565210250] [2019-10-13 23:09:17,353 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:17,353 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:17,354 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204966807] [2019-10-13 23:09:17,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:17,356 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:17,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:17,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:17,356 INFO L87 Difference]: Start difference. First operand 432 states and 512 transitions. Second operand 3 states. [2019-10-13 23:09:17,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:17,411 INFO L93 Difference]: Finished difference Result 848 states and 1034 transitions. [2019-10-13 23:09:17,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:17,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-13 23:09:17,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:17,418 INFO L225 Difference]: With dead ends: 848 [2019-10-13 23:09:17,419 INFO L226 Difference]: Without dead ends: 474 [2019-10-13 23:09:17,421 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 23:09:17,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-10-13 23:09:17,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 473. [2019-10-13 23:09:17,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2019-10-13 23:09:17,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 583 transitions. [2019-10-13 23:09:17,460 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 583 transitions. Word has length 180 [2019-10-13 23:09:17,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:17,461 INFO L462 AbstractCegarLoop]: Abstraction has 473 states and 583 transitions. [2019-10-13 23:09:17,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:17,461 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 583 transitions. [2019-10-13 23:09:17,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-13 23:09:17,468 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:17,469 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:17,469 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:17,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:17,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1610033062, now seen corresponding path program 1 times [2019-10-13 23:09:17,470 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:17,472 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722317158] [2019-10-13 23:09:17,473 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:17,473 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:17,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:18,284 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:09:18,285 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722317158] [2019-10-13 23:09:18,285 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:18,285 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-13 23:09:18,285 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033655545] [2019-10-13 23:09:18,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-13 23:09:18,286 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:18,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-13 23:09:18,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-13 23:09:18,287 INFO L87 Difference]: Start difference. First operand 473 states and 583 transitions. Second operand 28 states. [2019-10-13 23:09:27,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:27,534 INFO L93 Difference]: Finished difference Result 1054 states and 1309 transitions. [2019-10-13 23:09:27,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-13 23:09:27,534 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 181 [2019-10-13 23:09:27,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:27,541 INFO L225 Difference]: With dead ends: 1054 [2019-10-13 23:09:27,541 INFO L226 Difference]: Without dead ends: 813 [2019-10-13 23:09:27,543 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=178, Invalid=2078, Unknown=0, NotChecked=0, Total=2256 [2019-10-13 23:09:27,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2019-10-13 23:09:27,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 784. [2019-10-13 23:09:27,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-10-13 23:09:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 973 transitions. [2019-10-13 23:09:27,585 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 973 transitions. Word has length 181 [2019-10-13 23:09:27,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:27,586 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 973 transitions. [2019-10-13 23:09:27,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-13 23:09:27,586 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 973 transitions. [2019-10-13 23:09:27,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-13 23:09:27,590 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:27,590 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:27,590 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:27,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:27,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1446293020, now seen corresponding path program 1 times [2019-10-13 23:09:27,591 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:27,591 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578117374] [2019-10-13 23:09:27,592 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:27,592 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:27,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:09:27,799 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578117374] [2019-10-13 23:09:27,799 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:27,799 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:09:27,799 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871499748] [2019-10-13 23:09:27,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:09:27,800 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:27,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:09:27,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:09:27,801 INFO L87 Difference]: Start difference. First operand 784 states and 973 transitions. Second operand 10 states. [2019-10-13 23:09:27,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:27,875 INFO L93 Difference]: Finished difference Result 1336 states and 1671 transitions. [2019-10-13 23:09:27,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:09:27,876 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 185 [2019-10-13 23:09:27,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:27,881 INFO L225 Difference]: With dead ends: 1336 [2019-10-13 23:09:27,881 INFO L226 Difference]: Without dead ends: 804 [2019-10-13 23:09:27,884 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:09:27,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2019-10-13 23:09:27,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 788. [2019-10-13 23:09:27,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2019-10-13 23:09:27,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 977 transitions. [2019-10-13 23:09:27,921 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 977 transitions. Word has length 185 [2019-10-13 23:09:27,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:27,922 INFO L462 AbstractCegarLoop]: Abstraction has 788 states and 977 transitions. [2019-10-13 23:09:27,922 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:09:27,922 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 977 transitions. [2019-10-13 23:09:27,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-13 23:09:27,926 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:27,926 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:27,926 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:27,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:27,927 INFO L82 PathProgramCache]: Analyzing trace with hash 324242584, now seen corresponding path program 1 times [2019-10-13 23:09:27,927 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:27,927 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434941598] [2019-10-13 23:09:27,927 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:27,928 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:27,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:28,719 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:09:28,720 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434941598] [2019-10-13 23:09:28,720 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:28,721 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2019-10-13 23:09:28,721 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996309860] [2019-10-13 23:09:28,722 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-10-13 23:09:28,722 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:28,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-10-13 23:09:28,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=969, Unknown=0, NotChecked=0, Total=1056 [2019-10-13 23:09:28,723 INFO L87 Difference]: Start difference. First operand 788 states and 977 transitions. Second operand 33 states. [2019-10-13 23:09:41,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:41,968 INFO L93 Difference]: Finished difference Result 2014 states and 2526 transitions. [2019-10-13 23:09:41,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-13 23:09:41,969 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 187 [2019-10-13 23:09:41,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:41,979 INFO L225 Difference]: With dead ends: 2014 [2019-10-13 23:09:41,979 INFO L226 Difference]: Without dead ends: 1474 [2019-10-13 23:09:41,983 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=315, Invalid=3975, Unknown=0, NotChecked=0, Total=4290 [2019-10-13 23:09:41,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2019-10-13 23:09:42,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1454. [2019-10-13 23:09:42,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1454 states. [2019-10-13 23:09:42,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 1828 transitions. [2019-10-13 23:09:42,058 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 1828 transitions. Word has length 187 [2019-10-13 23:09:42,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:42,059 INFO L462 AbstractCegarLoop]: Abstraction has 1454 states and 1828 transitions. [2019-10-13 23:09:42,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-10-13 23:09:42,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 1828 transitions. [2019-10-13 23:09:42,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-13 23:09:42,064 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:42,064 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:42,064 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:42,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:42,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1264864662, now seen corresponding path program 1 times [2019-10-13 23:09:42,065 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:42,065 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588662873] [2019-10-13 23:09:42,065 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:42,065 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:42,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:42,809 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 23:09:42,810 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588662873] [2019-10-13 23:09:42,810 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:42,810 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2019-10-13 23:09:42,810 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843818851] [2019-10-13 23:09:42,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-13 23:09:42,812 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:42,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-13 23:09:42,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2019-10-13 23:09:42,813 INFO L87 Difference]: Start difference. First operand 1454 states and 1828 transitions. Second operand 27 states.