/usr/bin/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_spec3_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:20:18,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:20:18,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:20:18,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:20:18,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:20:18,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:20:18,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:20:18,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:20:18,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:20:18,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:20:18,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:20:18,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:20:18,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:20:18,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:20:18,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:20:18,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:20:18,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:20:18,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:20:18,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:20:18,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:20:18,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:20:18,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:20:18,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:20:18,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:20:18,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:20:18,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:20:18,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:20:18,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:20:18,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:20:18,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:20:18,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:20:18,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:20:18,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:20:18,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:20:18,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:20:18,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:20:18,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:20:18,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:20:18,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:20:18,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:20:18,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:20:18,149 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 [2019-11-07 04:20:18,168 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:20:18,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:20:18,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:20:18,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:20:18,171 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:20:18,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:20:18,172 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:20:18,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:20:18,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:20:18,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:20:18,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:20:18,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:20:18,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:20:18,174 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:20:18,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:20:18,175 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:20:18,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:20:18,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:20:18,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:20:18,175 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:20:18,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:20:18,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:20:18,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:20:18,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:20:18,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:20:18,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:20:18,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:20:18,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:20:18,178 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 [2019-11-07 04:20:18,462 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:20:18,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:20:18,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:20:18,481 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:20:18,482 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:20:18,482 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product25.cil.c [2019-11-07 04:20:18,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad3a55fc5/47fdb5b5f15e45e1bb1af9e750e70da8/FLAG5ec7181e3 [2019-11-07 04:20:19,181 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:20:19,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product25.cil.c [2019-11-07 04:20:19,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad3a55fc5/47fdb5b5f15e45e1bb1af9e750e70da8/FLAG5ec7181e3 [2019-11-07 04:20:19,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad3a55fc5/47fdb5b5f15e45e1bb1af9e750e70da8 [2019-11-07 04:20:19,424 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:20:19,426 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:20:19,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:20:19,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:20:19,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:20:19,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:20:19" (1/1) ... [2019-11-07 04:20:19,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50c56d54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:19, skipping insertion in model container [2019-11-07 04:20:19,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:20:19" (1/1) ... [2019-11-07 04:20:19,478 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:20:19,586 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:20:20,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:20:20,378 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:20:20,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:20:20,613 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:20:20,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:20 WrapperNode [2019-11-07 04:20:20,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:20:20,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:20:20,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:20:20,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:20:20,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:20" (1/1) ... [2019-11-07 04:20:20,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:20" (1/1) ... [2019-11-07 04:20:20,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:20" (1/1) ... [2019-11-07 04:20:20,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:20" (1/1) ... [2019-11-07 04:20:20,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:20" (1/1) ... [2019-11-07 04:20:20,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:20" (1/1) ... [2019-11-07 04:20:20,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:20" (1/1) ... [2019-11-07 04:20:20,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:20:20,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:20:20,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:20:20,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:20:20,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:20" (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 [2019-11-07 04:20:20,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:20:20,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:20:20,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:20:20,858 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:20:20,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:20:20,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:20:20,859 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:20:20,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:20:20,859 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:20:20,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:20:20,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:20:20,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:20:20,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:20:20,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:20:20,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:20:20,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:20:20,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:20:20,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:20:20,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:20:20,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:20:20,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:20:20,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:20:20,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:20:20,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:20:20,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:20:20,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:20:20,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:20:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:20:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:20:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:20:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:20:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:20:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:20:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:20:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:20:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:20:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:20:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:20:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:20:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:20:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:20:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:20:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:20:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:20:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:20:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:20:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:20:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:20:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:20:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:20:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:20:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:20:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:20:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:20:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:20:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:20:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:20:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:20:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:20:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:20:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:20:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:20:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:20:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:20:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:20:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:20:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:20:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 04:20:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:20:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:20:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:20:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:20:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:20:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:20:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:20:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:20:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:20:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:20:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:20:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:20:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:20:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:20:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:20:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:20:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:20:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 04:20:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 04:20:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 04:20:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 04:20:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:20:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:20:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:20:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:20:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:20:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:20:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:20:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:20:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:20:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:20:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:20:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:20:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:20:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:20:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:20:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:20:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:20:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:20:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:20:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:20:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:20:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:20:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:20:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:20:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:20:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:20:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:20:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:20:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:20:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:20:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:20:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:20:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:20:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:20:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:20:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:20:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:20:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:20:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:20:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:20:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:20:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:20:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:20:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:20:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:20:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:20:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:20:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:20:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:20:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:20:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:20:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:20:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:20:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:20:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:20:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:20:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:20:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:20:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:20:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:20:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:20:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:20:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:20:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:20:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:20:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:20:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:20:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:20:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:20:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:20:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:20:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:20:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:20:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:20:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:20:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:20:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:20:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:20:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:20:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:20:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:20:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:20:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:20:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:20:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:20:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:20:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:20:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:20:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:20:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:20:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:20:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:20:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:20:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:20:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:20:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:20:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:20:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:20:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:20:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:20:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:20:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:20:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:20:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:20:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:20:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:20:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:20:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:20:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:20:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:20:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:20:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:20:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:20:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:20:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:20:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:20:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:20:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:20:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:20:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:20:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:20:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:20:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:20:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:20:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:20:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:20:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:20:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:20:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:20:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:20:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:20:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:20:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 04:20:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:20:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 04:20:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:20:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:20:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 04:20:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:20:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:20:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 04:20:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 04:20:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:20:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:20:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:20:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:20:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:20:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:20:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:20:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:20:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:20:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:20:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:20:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:20:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:20:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:20:25,381 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:20:25,382 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:20:25,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:20:25 BoogieIcfgContainer [2019-11-07 04:20:25,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:20:25,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:20:25,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:20:25,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:20:25,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:20:19" (1/3) ... [2019-11-07 04:20:25,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b27aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:20:25, skipping insertion in model container [2019-11-07 04:20:25,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:20" (2/3) ... [2019-11-07 04:20:25,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b27aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:20:25, skipping insertion in model container [2019-11-07 04:20:25,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:20:25" (3/3) ... [2019-11-07 04:20:25,391 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product25.cil.c [2019-11-07 04:20:25,401 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:20:25,410 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:20:25,422 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:20:25,449 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:20:25,450 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:20:25,450 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:20:25,450 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:20:25,450 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:20:25,450 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:20:25,450 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:20:25,450 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:20:25,481 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states. [2019-11-07 04:20:25,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-11-07 04:20:25,498 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:25,499 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:25,501 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:25,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:25,511 INFO L82 PathProgramCache]: Analyzing trace with hash -481848957, now seen corresponding path program 1 times [2019-11-07 04:20:25,521 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:25,521 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229619783] [2019-11-07 04:20:25,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:26,188 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:26,189 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229619783] [2019-11-07 04:20:26,190 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:26,190 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:20:26,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063473802] [2019-11-07 04:20:26,197 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:20:26,197 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:26,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:20:26,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:20:26,214 INFO L87 Difference]: Start difference. First operand 415 states. Second operand 2 states. [2019-11-07 04:20:26,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:26,318 INFO L93 Difference]: Finished difference Result 612 states and 729 transitions. [2019-11-07 04:20:26,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:20:26,319 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 141 [2019-11-07 04:20:26,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:26,354 INFO L225 Difference]: With dead ends: 612 [2019-11-07 04:20:26,355 INFO L226 Difference]: Without dead ends: 388 [2019-11-07 04:20:26,365 INFO L630 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 [2019-11-07 04:20:26,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2019-11-07 04:20:26,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2019-11-07 04:20:26,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2019-11-07 04:20:26,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 457 transitions. [2019-11-07 04:20:26,473 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 457 transitions. Word has length 141 [2019-11-07 04:20:26,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:26,476 INFO L462 AbstractCegarLoop]: Abstraction has 388 states and 457 transitions. [2019-11-07 04:20:26,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:20:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 457 transitions. [2019-11-07 04:20:26,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-11-07 04:20:26,482 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:26,482 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:26,483 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:26,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:26,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1341774567, now seen corresponding path program 1 times [2019-11-07 04:20:26,483 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:26,484 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689901498] [2019-11-07 04:20:26,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:26,833 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689901498] [2019-11-07 04:20:26,833 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:26,833 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:20:26,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222336760] [2019-11-07 04:20:26,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:20:26,837 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:26,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:20:26,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:20:26,838 INFO L87 Difference]: Start difference. First operand 388 states and 457 transitions. Second operand 3 states. [2019-11-07 04:20:26,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:26,917 INFO L93 Difference]: Finished difference Result 597 states and 694 transitions. [2019-11-07 04:20:26,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:20:26,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-11-07 04:20:26,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:26,924 INFO L225 Difference]: With dead ends: 597 [2019-11-07 04:20:26,925 INFO L226 Difference]: Without dead ends: 390 [2019-11-07 04:20:26,931 INFO L630 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 [2019-11-07 04:20:26,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2019-11-07 04:20:26,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2019-11-07 04:20:26,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2019-11-07 04:20:26,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 459 transitions. [2019-11-07 04:20:26,983 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 459 transitions. Word has length 142 [2019-11-07 04:20:26,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:26,983 INFO L462 AbstractCegarLoop]: Abstraction has 390 states and 459 transitions. [2019-11-07 04:20:26,984 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:20:26,984 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 459 transitions. [2019-11-07 04:20:26,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-11-07 04:20:26,991 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:26,991 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:26,992 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:26,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:26,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1473747272, now seen corresponding path program 1 times [2019-11-07 04:20:26,994 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:26,994 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144890842] [2019-11-07 04:20:26,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:27,198 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:27,199 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144890842] [2019-11-07 04:20:27,199 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:27,199 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:20:27,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570360337] [2019-11-07 04:20:27,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:20:27,204 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:27,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:20:27,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:20:27,205 INFO L87 Difference]: Start difference. First operand 390 states and 459 transitions. Second operand 3 states. [2019-11-07 04:20:27,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:27,267 INFO L93 Difference]: Finished difference Result 764 states and 928 transitions. [2019-11-07 04:20:27,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:20:27,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-11-07 04:20:27,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:27,274 INFO L225 Difference]: With dead ends: 764 [2019-11-07 04:20:27,275 INFO L226 Difference]: Without dead ends: 432 [2019-11-07 04:20:27,277 INFO L630 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 [2019-11-07 04:20:27,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2019-11-07 04:20:27,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 431. [2019-11-07 04:20:27,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2019-11-07 04:20:27,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 530 transitions. [2019-11-07 04:20:27,313 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 530 transitions. Word has length 147 [2019-11-07 04:20:27,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:27,314 INFO L462 AbstractCegarLoop]: Abstraction has 431 states and 530 transitions. [2019-11-07 04:20:27,314 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:20:27,314 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 530 transitions. [2019-11-07 04:20:27,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-11-07 04:20:27,322 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:27,322 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:27,322 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:27,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:27,323 INFO L82 PathProgramCache]: Analyzing trace with hash -385056019, now seen corresponding path program 1 times [2019-11-07 04:20:27,323 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:27,323 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986542253] [2019-11-07 04:20:27,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:28,089 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:20:28,090 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986542253] [2019-11-07 04:20:28,090 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:28,090 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-11-07 04:20:28,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453452060] [2019-11-07 04:20:28,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-07 04:20:28,091 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:28,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-07 04:20:28,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2019-11-07 04:20:28,092 INFO L87 Difference]: Start difference. First operand 431 states and 530 transitions. Second operand 25 states. [2019-11-07 04:20:43,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:43,100 INFO L93 Difference]: Finished difference Result 1162 states and 1388 transitions. [2019-11-07 04:20:43,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-11-07 04:20:43,101 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 148 [2019-11-07 04:20:43,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:43,107 INFO L225 Difference]: With dead ends: 1162 [2019-11-07 04:20:43,108 INFO L226 Difference]: Without dead ends: 955 [2019-11-07 04:20:43,110 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=404, Invalid=3018, Unknown=0, NotChecked=0, Total=3422 [2019-11-07 04:20:43,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2019-11-07 04:20:43,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 944. [2019-11-07 04:20:43,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2019-11-07 04:20:43,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1124 transitions. [2019-11-07 04:20:43,188 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1124 transitions. Word has length 148 [2019-11-07 04:20:43,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:43,192 INFO L462 AbstractCegarLoop]: Abstraction has 944 states and 1124 transitions. [2019-11-07 04:20:43,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-07 04:20:43,192 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1124 transitions. [2019-11-07 04:20:43,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-11-07 04:20:43,197 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:43,197 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:43,198 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:43,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:43,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1366459273, now seen corresponding path program 1 times [2019-11-07 04:20:43,199 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:43,199 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962021597] [2019-11-07 04:20:43,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:43,434 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:43,435 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962021597] [2019-11-07 04:20:43,435 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142407070] [2019-11-07 04:20:43,435 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 [2019-11-07 04:20:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:44,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 2802 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:20:44,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:20:44,114 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:44,114 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:20:44,429 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:44,430 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [126450496] [2019-11-07 04:20:44,467 INFO L159 IcfgInterpreter]: Started Sifa with 143 locations of interest [2019-11-07 04:20:44,467 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:20:44,474 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:20:44,482 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:20:44,483 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs