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_spec9_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:13:25,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:13:25,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:13:25,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:13:25,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:13:25,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:13:25,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:13:25,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:13:25,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:13:25,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:13:25,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:13:25,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:13:25,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:13:25,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:13:25,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:13:25,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:13:25,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:13:25,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:13:25,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:13:25,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:13:25,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:13:25,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:13:25,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:13:25,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:13:25,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:13:25,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:13:25,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:13:25,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:13:25,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:13:25,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:13:25,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:13:25,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:13:25,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:13:25,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:13:25,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:13:25,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:13:25,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:13:25,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:13:25,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:13:25,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:13:25,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:13:25,732 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 23:13:25,747 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:13:25,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:13:25,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:13:25,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:13:25,749 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:13:25,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:13:25,749 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:13:25,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:13:25,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:13:25,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:13:25,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:13:25,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:13:25,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:13:25,752 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:13:25,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:13:25,752 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:13:25,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:13:25,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:13:25,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:13:25,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:13:25,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:13:25,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:13:25,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:13:25,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:13:25,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:13:25,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:13:25,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:13:25,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:13:25,756 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 23:13:26,052 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:13:26,066 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:13:26,069 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:13:26,071 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:13:26,071 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:13:26,072 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product22.cil.c [2019-10-13 23:13:26,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22798a28d/0de0ca8770fb4fdbb5f476fafb087c67/FLAGb6bd2ed30 [2019-10-13 23:13:26,853 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:13:26,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product22.cil.c [2019-10-13 23:13:26,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22798a28d/0de0ca8770fb4fdbb5f476fafb087c67/FLAGb6bd2ed30 [2019-10-13 23:13:26,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22798a28d/0de0ca8770fb4fdbb5f476fafb087c67 [2019-10-13 23:13:27,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:13:27,010 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:13:27,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:13:27,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:13:27,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:13:27,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:13:26" (1/1) ... [2019-10-13 23:13:27,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b0f5b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:27, skipping insertion in model container [2019-10-13 23:13:27,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:13:26" (1/1) ... [2019-10-13 23:13:27,028 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:13:27,121 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:13:27,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:13:27,908 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:13:28,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:13:28,138 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:13:28,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:28 WrapperNode [2019-10-13 23:13:28,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:13:28,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:13:28,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:13:28,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:13:28,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:28" (1/1) ... [2019-10-13 23:13:28,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:28" (1/1) ... [2019-10-13 23:13:28,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:28" (1/1) ... [2019-10-13 23:13:28,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:28" (1/1) ... [2019-10-13 23:13:28,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:28" (1/1) ... [2019-10-13 23:13:28,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:28" (1/1) ... [2019-10-13 23:13:28,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:28" (1/1) ... [2019-10-13 23:13:28,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:13:28,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:13:28,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:13:28,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:13:28,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:28" (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 23:13:28,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:13:28,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:13:28,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:13:28,409 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:13:28,409 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:13:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:13:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:13:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:13:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:13:28,412 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:13:28,412 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:13:28,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:13:28,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:13:28,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:13:28,414 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:13:28,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:13:28,417 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:13:28,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:13:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:13:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:13:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:13:28,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:13:28,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:13:28,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:13:28,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:13:28,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:13:28,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:13:28,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:13:28,420 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:13:28,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:13:28,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:13:28,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:13:28,421 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:13:28,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:13:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:13:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:13:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:13:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:13:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:13:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:13:28,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:13:28,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:13:28,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:13:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:13:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:13:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:13:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:13:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:13:28,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:13:28,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:13:28,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:13:28,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:13:28,426 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:13:28,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:13:28,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:13:28,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:13:28,426 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:13:28,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:13:28,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:13:28,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:13:28,428 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:13:28,428 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:13:28,428 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:13:28,428 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:13:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:13:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-13 23:13:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:13:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:13:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:13:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:13:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:13:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:13:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:13:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:13:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:13:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:13:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:13:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:13:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:13:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:13:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:13:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:13:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:13:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:13:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:13:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:13:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:13:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:13:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:13:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:13:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:13:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:13:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:13:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:13:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:13:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:13:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:13:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:13:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:13:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:13:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:13:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:13:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:13:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:13:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:13:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:13:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 23:13:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 23:13:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:13:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:13:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:13:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:13:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:13:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:13:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:13:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:13:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:13:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:13:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:13:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:13:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:13:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:13:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:13:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:13:28,444 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:13:28,444 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:13:28,444 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:13:28,444 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:13:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:13:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:13:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:13:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:13:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:13:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:13:28,450 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:13:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:13:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:13:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:13:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:13:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:13:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:13:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:13:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:13:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:13:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:13:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:13:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:13:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:13:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:13:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:13:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:13:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:13:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:13:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:13:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:13:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:13:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:13:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:13:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:13:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:13:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:13:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:13:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:13:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:13:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:13:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:13:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:13:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:13:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:13:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:13:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:13:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:13:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:13:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:13:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:13:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:13:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:13:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:13:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:13:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:13:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:13:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:13:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:13:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:13:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:13:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:13:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:13:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:13:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:13:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:13:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:13:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:13:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:13:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:13:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:13:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:13:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:13:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:13:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:13:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 23:13:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:13:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:13:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-13 23:13:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:13:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 23:13:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:13:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:13:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:13:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:13:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:13:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:13:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:13:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:13:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:13:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:13:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:13:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:13:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:13:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:13:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:13:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:13:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:13:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:13:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:13:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:13:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:13:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:13:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:13:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:13:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:13:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:13:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:13:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:13:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:13:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:13:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:13:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:13:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:13:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:13:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:13:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:13:33,097 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:13:33,098 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:13:33,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:33 BoogieIcfgContainer [2019-10-13 23:13:33,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:13:33,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:13:33,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:13:33,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:13:33,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:13:26" (1/3) ... [2019-10-13 23:13:33,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6175458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:33, skipping insertion in model container [2019-10-13 23:13:33,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:28" (2/3) ... [2019-10-13 23:13:33,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6175458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:33, skipping insertion in model container [2019-10-13 23:13:33,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:33" (3/3) ... [2019-10-13 23:13:33,108 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product22.cil.c [2019-10-13 23:13:33,118 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:13:33,128 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:13:33,139 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:13:33,170 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:13:33,170 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:13:33,170 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:13:33,171 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:13:33,171 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:13:33,171 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:13:33,171 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:13:33,171 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:13:33,200 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states. [2019-10-13 23:13:33,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 23:13:33,216 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:33,217 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:33,220 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:33,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:33,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1943766214, now seen corresponding path program 1 times [2019-10-13 23:13:33,236 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:33,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545721664] [2019-10-13 23:13:33,236 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:33,237 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:33,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:33,961 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:33,962 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545721664] [2019-10-13 23:13:33,963 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:33,963 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:13:33,963 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455638012] [2019-10-13 23:13:33,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:13:33,969 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:33,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:13:33,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:13:33,987 INFO L87 Difference]: Start difference. First operand 375 states. Second operand 2 states. [2019-10-13 23:13:34,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:34,061 INFO L93 Difference]: Finished difference Result 551 states and 650 transitions. [2019-10-13 23:13:34,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:13:34,064 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-13 23:13:34,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:34,090 INFO L225 Difference]: With dead ends: 551 [2019-10-13 23:13:34,091 INFO L226 Difference]: Without dead ends: 354 [2019-10-13 23:13:34,102 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 23:13:34,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2019-10-13 23:13:34,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2019-10-13 23:13:34,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-10-13 23:13:34,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 417 transitions. [2019-10-13 23:13:34,211 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 417 transitions. Word has length 114 [2019-10-13 23:13:34,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:34,214 INFO L462 AbstractCegarLoop]: Abstraction has 354 states and 417 transitions. [2019-10-13 23:13:34,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:13:34,214 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 417 transitions. [2019-10-13 23:13:34,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-13 23:13:34,219 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:34,219 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:34,219 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:34,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:34,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1118741200, now seen corresponding path program 1 times [2019-10-13 23:13:34,220 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:34,220 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060296816] [2019-10-13 23:13:34,220 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:34,221 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:34,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:34,412 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:34,412 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060296816] [2019-10-13 23:13:34,413 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:34,413 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:34,413 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813124118] [2019-10-13 23:13:34,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:34,415 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:34,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:34,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:34,416 INFO L87 Difference]: Start difference. First operand 354 states and 417 transitions. Second operand 3 states. [2019-10-13 23:13:34,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:34,459 INFO L93 Difference]: Finished difference Result 536 states and 622 transitions. [2019-10-13 23:13:34,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:34,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-13 23:13:34,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:34,465 INFO L225 Difference]: With dead ends: 536 [2019-10-13 23:13:34,465 INFO L226 Difference]: Without dead ends: 356 [2019-10-13 23:13:34,469 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 23:13:34,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-10-13 23:13:34,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-10-13 23:13:34,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-10-13 23:13:34,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 419 transitions. [2019-10-13 23:13:34,514 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 419 transitions. Word has length 115 [2019-10-13 23:13:34,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:34,517 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 419 transitions. [2019-10-13 23:13:34,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:34,517 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 419 transitions. [2019-10-13 23:13:34,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-13 23:13:34,522 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:34,523 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:34,523 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:34,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:34,523 INFO L82 PathProgramCache]: Analyzing trace with hash 957558595, now seen corresponding path program 1 times [2019-10-13 23:13:34,524 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:34,524 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433341816] [2019-10-13 23:13:34,524 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:34,524 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:34,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:34,746 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:34,746 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433341816] [2019-10-13 23:13:34,746 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:34,747 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:34,747 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512425018] [2019-10-13 23:13:34,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:34,748 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:34,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:34,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:34,749 INFO L87 Difference]: Start difference. First operand 356 states and 419 transitions. Second operand 3 states. [2019-10-13 23:13:34,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:34,783 INFO L93 Difference]: Finished difference Result 696 states and 848 transitions. [2019-10-13 23:13:34,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:34,783 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-10-13 23:13:34,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:34,786 INFO L225 Difference]: With dead ends: 696 [2019-10-13 23:13:34,787 INFO L226 Difference]: Without dead ends: 398 [2019-10-13 23:13:34,789 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 23:13:34,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-10-13 23:13:34,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 397. [2019-10-13 23:13:34,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-10-13 23:13:34,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 490 transitions. [2019-10-13 23:13:34,809 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 490 transitions. Word has length 127 [2019-10-13 23:13:34,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:34,810 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 490 transitions. [2019-10-13 23:13:34,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:34,810 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 490 transitions. [2019-10-13 23:13:34,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-13 23:13:34,813 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:34,813 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:34,813 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:34,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:34,814 INFO L82 PathProgramCache]: Analyzing trace with hash -392699618, now seen corresponding path program 1 times [2019-10-13 23:13:34,814 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:34,814 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999623080] [2019-10-13 23:13:34,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:34,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:34,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:35,107 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:13:35,108 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999623080] [2019-10-13 23:13:35,108 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:35,108 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:35,108 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099421194] [2019-10-13 23:13:35,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:35,111 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:35,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:35,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:35,112 INFO L87 Difference]: Start difference. First operand 397 states and 490 transitions. Second operand 3 states. [2019-10-13 23:13:35,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:35,170 INFO L93 Difference]: Finished difference Result 610 states and 733 transitions. [2019-10-13 23:13:35,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:35,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-13 23:13:35,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:35,175 INFO L225 Difference]: With dead ends: 610 [2019-10-13 23:13:35,175 INFO L226 Difference]: Without dead ends: 431 [2019-10-13 23:13:35,176 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 23:13:35,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-10-13 23:13:35,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2019-10-13 23:13:35,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2019-10-13 23:13:35,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 522 transitions. [2019-10-13 23:13:35,206 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 522 transitions. Word has length 128 [2019-10-13 23:13:35,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:35,207 INFO L462 AbstractCegarLoop]: Abstraction has 431 states and 522 transitions. [2019-10-13 23:13:35,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:35,207 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 522 transitions. [2019-10-13 23:13:35,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-13 23:13:35,216 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:35,217 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 23:13:35,217 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:35,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:35,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1808794563, now seen corresponding path program 1 times [2019-10-13 23:13:35,218 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:35,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305296590] [2019-10-13 23:13:35,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:35,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:35,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:35,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:35,749 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:13:35,750 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305296590] [2019-10-13 23:13:35,750 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:35,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 23:13:35,750 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302132107] [2019-10-13 23:13:35,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:13:35,751 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:35,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:13:35,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:13:35,752 INFO L87 Difference]: Start difference. First operand 431 states and 522 transitions. Second operand 11 states. [2019-10-13 23:13:38,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:38,735 INFO L93 Difference]: Finished difference Result 555 states and 648 transitions. [2019-10-13 23:13:38,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:13:38,736 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 222 [2019-10-13 23:13:38,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:38,741 INFO L225 Difference]: With dead ends: 555 [2019-10-13 23:13:38,742 INFO L226 Difference]: Without dead ends: 487 [2019-10-13 23:13:38,743 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:13:38,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2019-10-13 23:13:38,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 485. [2019-10-13 23:13:38,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2019-10-13 23:13:38,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 576 transitions. [2019-10-13 23:13:38,769 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 576 transitions. Word has length 222 [2019-10-13 23:13:38,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:38,770 INFO L462 AbstractCegarLoop]: Abstraction has 485 states and 576 transitions. [2019-10-13 23:13:38,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:13:38,770 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 576 transitions. [2019-10-13 23:13:38,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-13 23:13:38,775 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:38,775 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 23:13:38,776 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:38,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:38,776 INFO L82 PathProgramCache]: Analyzing trace with hash -475712661, now seen corresponding path program 1 times [2019-10-13 23:13:38,776 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:38,777 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316654765] [2019-10-13 23:13:38,777 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:38,777 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:38,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:39,368 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-13 23:13:39,368 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316654765] [2019-10-13 23:13:39,369 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332580964] [2019-10-13 23:13:39,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:13:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:40,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 3027 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:13:40,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:13:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 23:13:40,203 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:13:40,692 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:13:40,692 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [402188475] [2019-10-13 23:13:40,726 INFO L162 IcfgInterpreter]: Started Sifa with 195 locations of interest [2019-10-13 23:13:40,726 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:13:40,734 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:13:40,742 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:13:40,743 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs