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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:09:06,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:09:06,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:09:06,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:09:06,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:09:06,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:09:06,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:09:06,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:09:06,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:09:06,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:09:06,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:09:06,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:09:06,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:09:06,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:09:06,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:09:06,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:09:06,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:09:06,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:09:06,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:09:06,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:09:06,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:09:06,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:09:06,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:09:06,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:09:06,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:09:06,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:09:06,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:09:06,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:09:06,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:09:06,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:09:06,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:09:06,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:09:06,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:09:06,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:09:06,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:09:06,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:09:06,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:09:06,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:09:06,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:09:06,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:09:06,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:09:06,469 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 23:09:06,505 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:09:06,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:09:06,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:09:06,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:09:06,510 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:09:06,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:09:06,510 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:09:06,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:09:06,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:09:06,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:09:06,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:09:06,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:09:06,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:09:06,512 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:09:06,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:09:06,512 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:09:06,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:09:06,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:09:06,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:09:06,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:09:06,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:09:06,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:06,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:09:06,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:09:06,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:09:06,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:09:06,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:09:06,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:09:06,518 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 23:09:06,810 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:09:06,823 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:09:06,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:09:06,828 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:09:06,828 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:09:06,829 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product31.cil.c [2019-10-13 23:09:06,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eec8dcf5a/5542c5e7cce3403580b19d4255eb1019/FLAG6bebd6ba3 [2019-10-13 23:09:07,445 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:09:07,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product31.cil.c [2019-10-13 23:09:07,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eec8dcf5a/5542c5e7cce3403580b19d4255eb1019/FLAG6bebd6ba3 [2019-10-13 23:09:07,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eec8dcf5a/5542c5e7cce3403580b19d4255eb1019 [2019-10-13 23:09:07,748 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:09:07,750 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:09:07,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:07,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:09:07,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:09:07,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:07" (1/1) ... [2019-10-13 23:09:07,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e8ed57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:07, skipping insertion in model container [2019-10-13 23:09:07,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:07" (1/1) ... [2019-10-13 23:09:07,767 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:09:07,859 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:09:08,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:08,562 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:09:08,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:08,826 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:09:08,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:08 WrapperNode [2019-10-13 23:09:08,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:08,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:09:08,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:09:08,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:09:08,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:08" (1/1) ... [2019-10-13 23:09:08,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:08" (1/1) ... [2019-10-13 23:09:08,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:08" (1/1) ... [2019-10-13 23:09:08,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:08" (1/1) ... [2019-10-13 23:09:08,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:08" (1/1) ... [2019-10-13 23:09:09,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:08" (1/1) ... [2019-10-13 23:09:09,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:08" (1/1) ... [2019-10-13 23:09:09,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:09:09,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:09:09,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:09:09,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:09:09,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:08" (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 23:09:09,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:09:09,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:09:09,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:09,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:09:09,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:09:09,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:09,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:09:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:09:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:09:09,196 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:09:09,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:09:09,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:09:09,198 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:09:09,198 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:09:09,198 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:09:09,201 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:09:09,202 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:09:09,202 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:09:09,203 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:09:09,203 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:09:09,203 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:09:09,203 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:09:09,204 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:09:09,204 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:09:09,204 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:09:09,204 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:09:09,204 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:09:09,204 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:09:09,205 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:09:09,205 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:09:09,205 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:09:09,205 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:09:09,205 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:09:09,206 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:09:09,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:09:09,206 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:09:09,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:09:09,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:09:09,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:09:09,207 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:09:09,207 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:09:09,207 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:09:09,207 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:09:09,207 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:09:09,207 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:09:09,207 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:09:09,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:09:09,209 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:09:09,209 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:09:09,210 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:09:09,210 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:09:09,210 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:09:09,210 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:09:09,211 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:09:09,211 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:09:09,211 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:09:09,211 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:09:09,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:09:09,212 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:09:09,213 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:09:09,213 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:09:09,213 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:09:09,213 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:09:09,214 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:09:09,214 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:09:09,214 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:09:09,214 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:09:09,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:09:09,215 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:09:09,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:09:09,215 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:09:09,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:09:09,217 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:09:09,217 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:09:09,217 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:09:09,218 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:09:09,218 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:09:09,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:09:09,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:09,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:09,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:09,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:09:09,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:09:09,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:09:09,221 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:09:09,221 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:09:09,222 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:09:09,222 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:09:09,222 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:09:09,222 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:09:09,223 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:09:09,223 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:09:09,223 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:09:09,223 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:09:09,223 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:09:09,223 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:09:09,224 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:09:09,224 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:09:09,224 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:09:09,224 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:09:09,224 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:09:09,225 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:09:09,225 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:09:09,225 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:09:09,225 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:09:09,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:09:09,226 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:09:09,226 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-13 23:09:09,226 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:09:09,226 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:09:09,226 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:09:09,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:09:09,227 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:09:09,227 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:09:09,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:09:09,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:09:09,228 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:09:09,228 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:09:09,229 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:09:09,229 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:09:09,230 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:09:09,230 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:09:09,230 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:09:09,231 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:09:09,232 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:09:09,232 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:09:09,232 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:09:09,232 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:09:09,232 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:09:09,233 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:09:09,233 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:09:09,233 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:09:09,234 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:09:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:09:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:09:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:09:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:09:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:09:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:09:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:09:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:09:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:09:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:09:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:09:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:09:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:09:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:09:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:09:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:09:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:09:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:09:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:09:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:09:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:09:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:09:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:09:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:09:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:09:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:09:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:09:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:09:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:09:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:09:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:09:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:09:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:09:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:09:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:09:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:09:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:09:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:09:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:09:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:09:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:09:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:09:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:09:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:09:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:09:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:09:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:09:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:09:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:09:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:09:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:09:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:09:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:09:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:09:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:09:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:09:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:09:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:09:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:09:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:09:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:09:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:09:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:09:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:09:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:09:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:09:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:09:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:09:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:09:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:09:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:09:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:09:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:09:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:09:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:09:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:09:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:09:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:09:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:09:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:09:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:09:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:09:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:09:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:09:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:09:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:09:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:09:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:09:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:09:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:09:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:09:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:09:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:09:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:09:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:09:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:09:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:09:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:09:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:09:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-13 23:09:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:09:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:09:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:09:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:09:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:09:14,510 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:09:14,510 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:09:14,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:14 BoogieIcfgContainer [2019-10-13 23:09:14,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:09:14,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:09:14,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:09:14,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:09:14,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:09:07" (1/3) ... [2019-10-13 23:09:14,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e2e211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:14, skipping insertion in model container [2019-10-13 23:09:14,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:08" (2/3) ... [2019-10-13 23:09:14,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e2e211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:14, skipping insertion in model container [2019-10-13 23:09:14,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:14" (3/3) ... [2019-10-13 23:09:14,521 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product31.cil.c [2019-10-13 23:09:14,532 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:09:14,543 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:09:14,555 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:09:14,587 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:09:14,587 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:09:14,587 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:09:14,587 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:09:14,587 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:09:14,588 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:09:14,588 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:09:14,588 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:09:14,619 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states. [2019-10-13 23:09:14,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-13 23:09:14,639 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:14,641 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] [2019-10-13 23:09:14,643 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:14,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:14,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1511450814, now seen corresponding path program 1 times [2019-10-13 23:09:14,660 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:14,661 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560200925] [2019-10-13 23:09:14,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:14,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:14,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:15,426 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 23:09:15,427 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560200925] [2019-10-13 23:09:15,428 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:15,428 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:09:15,429 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054767104] [2019-10-13 23:09:15,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:09:15,437 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:15,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:09:15,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:09:15,455 INFO L87 Difference]: Start difference. First operand 412 states. Second operand 2 states. [2019-10-13 23:09:15,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:15,551 INFO L93 Difference]: Finished difference Result 632 states and 755 transitions. [2019-10-13 23:09:15,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:09:15,553 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 167 [2019-10-13 23:09:15,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:15,588 INFO L225 Difference]: With dead ends: 632 [2019-10-13 23:09:15,589 INFO L226 Difference]: Without dead ends: 391 [2019-10-13 23:09:15,603 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 23:09:15,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2019-10-13 23:09:15,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2019-10-13 23:09:15,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2019-10-13 23:09:15,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 463 transitions. [2019-10-13 23:09:15,744 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 463 transitions. Word has length 167 [2019-10-13 23:09:15,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:15,747 INFO L462 AbstractCegarLoop]: Abstraction has 391 states and 463 transitions. [2019-10-13 23:09:15,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:09:15,747 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 463 transitions. [2019-10-13 23:09:15,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-13 23:09:15,753 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:15,754 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] [2019-10-13 23:09:15,754 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:15,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:15,755 INFO L82 PathProgramCache]: Analyzing trace with hash -436654515, now seen corresponding path program 1 times [2019-10-13 23:09:15,755 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:15,755 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403953036] [2019-10-13 23:09:15,755 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:15,755 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:15,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:16,094 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 23:09:16,095 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403953036] [2019-10-13 23:09:16,095 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:16,095 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:16,096 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503033006] [2019-10-13 23:09:16,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:16,102 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:16,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:16,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:16,102 INFO L87 Difference]: Start difference. First operand 391 states and 463 transitions. Second operand 3 states. [2019-10-13 23:09:16,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:16,184 INFO L93 Difference]: Finished difference Result 617 states and 721 transitions. [2019-10-13 23:09:16,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:16,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-10-13 23:09:16,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:16,193 INFO L225 Difference]: With dead ends: 617 [2019-10-13 23:09:16,193 INFO L226 Difference]: Without dead ends: 393 [2019-10-13 23:09:16,198 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 23:09:16,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2019-10-13 23:09:16,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2019-10-13 23:09:16,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2019-10-13 23:09:16,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 465 transitions. [2019-10-13 23:09:16,241 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 465 transitions. Word has length 168 [2019-10-13 23:09:16,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:16,241 INFO L462 AbstractCegarLoop]: Abstraction has 393 states and 465 transitions. [2019-10-13 23:09:16,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:16,242 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 465 transitions. [2019-10-13 23:09:16,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-13 23:09:16,246 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:16,246 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] [2019-10-13 23:09:16,247 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:16,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:16,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1469855177, now seen corresponding path program 1 times [2019-10-13 23:09:16,247 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:16,248 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683428791] [2019-10-13 23:09:16,248 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:16,248 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:16,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:16,510 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 23:09:16,510 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683428791] [2019-10-13 23:09:16,511 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:16,511 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:16,511 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953620027] [2019-10-13 23:09:16,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:16,516 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:16,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:16,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:16,517 INFO L87 Difference]: Start difference. First operand 393 states and 465 transitions. Second operand 3 states. [2019-10-13 23:09:16,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:16,581 INFO L93 Difference]: Finished difference Result 768 states and 937 transitions. [2019-10-13 23:09:16,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:16,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2019-10-13 23:09:16,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:16,590 INFO L225 Difference]: With dead ends: 768 [2019-10-13 23:09:16,591 INFO L226 Difference]: Without dead ends: 433 [2019-10-13 23:09:16,593 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 23:09:16,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-10-13 23:09:16,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 432. [2019-10-13 23:09:16,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2019-10-13 23:09:16,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 533 transitions. [2019-10-13 23:09:16,634 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 533 transitions. Word has length 173 [2019-10-13 23:09:16,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:16,636 INFO L462 AbstractCegarLoop]: Abstraction has 432 states and 533 transitions. [2019-10-13 23:09:16,636 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:16,636 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 533 transitions. [2019-10-13 23:09:16,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 23:09:16,643 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:16,645 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] [2019-10-13 23:09:16,645 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:16,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:16,646 INFO L82 PathProgramCache]: Analyzing trace with hash 883792554, now seen corresponding path program 1 times [2019-10-13 23:09:16,646 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:16,647 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713424] [2019-10-13 23:09:16,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:16,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:16,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:17,475 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 23:09:17,476 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713424] [2019-10-13 23:09:17,476 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:17,477 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-13 23:09:17,477 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435554057] [2019-10-13 23:09:17,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-13 23:09:17,478 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:17,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-13 23:09:17,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:09:17,479 INFO L87 Difference]: Start difference. First operand 432 states and 533 transitions. Second operand 26 states. [2019-10-13 23:09:26,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:26,502 INFO L93 Difference]: Finished difference Result 944 states and 1157 transitions. [2019-10-13 23:09:26,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-13 23:09:26,502 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 174 [2019-10-13 23:09:26,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:26,510 INFO L225 Difference]: With dead ends: 944 [2019-10-13 23:09:26,510 INFO L226 Difference]: Without dead ends: 720 [2019-10-13 23:09:26,512 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=1813, Unknown=0, NotChecked=0, Total=1980 [2019-10-13 23:09:26,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2019-10-13 23:09:26,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 691. [2019-10-13 23:09:26,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2019-10-13 23:09:26,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 849 transitions. [2019-10-13 23:09:26,565 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 849 transitions. Word has length 174 [2019-10-13 23:09:26,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:26,568 INFO L462 AbstractCegarLoop]: Abstraction has 691 states and 849 transitions. [2019-10-13 23:09:26,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-13 23:09:26,568 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 849 transitions. [2019-10-13 23:09:26,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-13 23:09:26,574 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:26,574 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] [2019-10-13 23:09:26,574 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:26,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:26,575 INFO L82 PathProgramCache]: Analyzing trace with hash 169801516, now seen corresponding path program 1 times [2019-10-13 23:09:26,575 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:26,576 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017756001] [2019-10-13 23:09:26,576 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:26,576 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:26,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:26,836 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 23:09:26,836 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017756001] [2019-10-13 23:09:26,837 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:26,837 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:09:26,838 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999297404] [2019-10-13 23:09:26,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:09:26,840 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:26,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:09:26,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:09:26,841 INFO L87 Difference]: Start difference. First operand 691 states and 849 transitions. Second operand 10 states. [2019-10-13 23:09:26,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:26,935 INFO L93 Difference]: Finished difference Result 1148 states and 1395 transitions. [2019-10-13 23:09:26,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:09:26,936 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 178 [2019-10-13 23:09:26,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:26,942 INFO L225 Difference]: With dead ends: 1148 [2019-10-13 23:09:26,942 INFO L226 Difference]: Without dead ends: 711 [2019-10-13 23:09:26,944 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 23:09:26,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2019-10-13 23:09:26,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 695. [2019-10-13 23:09:26,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2019-10-13 23:09:26,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 853 transitions. [2019-10-13 23:09:26,985 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 853 transitions. Word has length 178 [2019-10-13 23:09:26,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:26,986 INFO L462 AbstractCegarLoop]: Abstraction has 695 states and 853 transitions. [2019-10-13 23:09:26,986 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:09:26,986 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 853 transitions. [2019-10-13 23:09:26,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-13 23:09:26,992 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:26,992 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 23:09:26,993 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:26,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:26,993 INFO L82 PathProgramCache]: Analyzing trace with hash -185600056, now seen corresponding path program 1 times [2019-10-13 23:09:26,993 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:26,994 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386942168] [2019-10-13 23:09:26,994 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:26,994 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:26,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:27,983 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 23:09:27,983 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386942168] [2019-10-13 23:09:27,983 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:27,984 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-10-13 23:09:27,984 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27272966] [2019-10-13 23:09:27,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-13 23:09:27,985 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:27,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-13 23:09:27,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=849, Unknown=0, NotChecked=0, Total=930 [2019-10-13 23:09:27,986 INFO L87 Difference]: Start difference. First operand 695 states and 853 transitions. Second operand 31 states. [2019-10-13 23:09:41,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:41,085 INFO L93 Difference]: Finished difference Result 1686 states and 2037 transitions. [2019-10-13 23:09:41,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-13 23:09:41,086 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 180 [2019-10-13 23:09:41,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:41,098 INFO L225 Difference]: With dead ends: 1686 [2019-10-13 23:09:41,098 INFO L226 Difference]: Without dead ends: 1196 [2019-10-13 23:09:41,102 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=295, Invalid=3487, Unknown=0, NotChecked=0, Total=3782 [2019-10-13 23:09:41,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2019-10-13 23:09:41,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1179. [2019-10-13 23:09:41,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1179 states. [2019-10-13 23:09:41,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1426 transitions. [2019-10-13 23:09:41,180 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1426 transitions. Word has length 180 [2019-10-13 23:09:41,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:41,183 INFO L462 AbstractCegarLoop]: Abstraction has 1179 states and 1426 transitions. [2019-10-13 23:09:41,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-13 23:09:41,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1426 transitions. [2019-10-13 23:09:41,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-13 23:09:41,188 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:41,188 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] [2019-10-13 23:09:41,189 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:41,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:41,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1099163062, now seen corresponding path program 1 times [2019-10-13 23:09:41,189 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:41,190 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236321967] [2019-10-13 23:09:41,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:41,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:41,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:41,799 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 23:09:41,799 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236321967] [2019-10-13 23:09:41,799 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:41,800 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-13 23:09:41,800 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321292704] [2019-10-13 23:09:41,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-13 23:09:41,801 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:41,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-13 23:09:41,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-13 23:09:41,801 INFO L87 Difference]: Start difference. First operand 1179 states and 1426 transitions. Second operand 25 states.