java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:13:44,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:13:44,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:13:44,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:13:44,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:13:44,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:13:44,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:13:44,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:13:44,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:13:44,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:13:44,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:13:44,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:13:44,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:13:44,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:13:44,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:13:44,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:13:44,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:13:44,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:13:44,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:13:44,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:13:44,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:13:44,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:13:44,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:13:44,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:13:44,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:13:44,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:13:44,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:13:44,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:13:44,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:13:44,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:13:44,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:13:44,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:13:44,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:13:44,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:13:44,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:13:44,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:13:44,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:13:44,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:13:44,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:13:44,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:13:44,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:13:44,513 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:13:44,538 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:13:44,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:13:44,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:13:44,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:13:44,541 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:13:44,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:13:44,542 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:13:44,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:13:44,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:13:44,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:13:44,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:13:44,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:13:44,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:13:44,544 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:13:44,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:13:44,545 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:13:44,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:13:44,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:13:44,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:13:44,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:13:44,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:13:44,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:13:44,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:13:44,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:13:44,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:13:44,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:13:44,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:13:44,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:13:44,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:13:44,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:13:44,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:13:44,842 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:13:44,843 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:13:44,844 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:13:44,844 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product34.cil.c [2019-10-15 03:13:44,904 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db97c0462/e620b3a7b7cc4a28841042764d7db06a/FLAG641483d5d [2019-10-15 03:13:45,575 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:13:45,576 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product34.cil.c [2019-10-15 03:13:45,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db97c0462/e620b3a7b7cc4a28841042764d7db06a/FLAG641483d5d [2019-10-15 03:13:45,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db97c0462/e620b3a7b7cc4a28841042764d7db06a [2019-10-15 03:13:45,778 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:13:45,779 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:13:45,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:13:45,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:13:45,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:13:45,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:13:45" (1/1) ... [2019-10-15 03:13:45,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4caf3c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:45, skipping insertion in model container [2019-10-15 03:13:45,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:13:45" (1/1) ... [2019-10-15 03:13:45,794 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:13:45,871 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:13:46,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:13:46,653 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:13:46,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:13:46,862 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:13:46,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:46 WrapperNode [2019-10-15 03:13:46,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:13:46,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:13:46,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:13:46,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:13:46,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:46" (1/1) ... [2019-10-15 03:13:46,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:46" (1/1) ... [2019-10-15 03:13:46,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:46" (1/1) ... [2019-10-15 03:13:46,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:46" (1/1) ... [2019-10-15 03:13:47,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:46" (1/1) ... [2019-10-15 03:13:47,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:46" (1/1) ... [2019-10-15 03:13:47,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:46" (1/1) ... [2019-10-15 03:13:47,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:13:47,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:13:47,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:13:47,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:13:47,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:13:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:13:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:13:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:13:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:13:47,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:13:47,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:13:47,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:13:47,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:13:47,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:13:47,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:13:47,155 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:13:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:13:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:13:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:13:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:13:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:13:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:13:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:13:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:13:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:13:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:13:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:13:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:13:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:13:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:13:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:13:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:13:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:13:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:13:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:13:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:13:47,162 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:13:47,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:13:47,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 03:13:47,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:13:47,163 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:13:47,163 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:13:47,163 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:13:47,163 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:13:47,163 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:13:47,164 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:13:47,164 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:13:47,164 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:13:47,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:13:47,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:13:47,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:13:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:13:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:13:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:13:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:13:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:13:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:13:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:13:47,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:13:47,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:13:47,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:13:47,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:13:47,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:13:47,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:13:47,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:13:47,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:13:47,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:13:47,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:13:47,168 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:13:47,168 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:13:47,168 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:13:47,168 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:13:47,168 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:13:47,168 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:13:47,169 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 03:13:47,169 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 03:13:47,169 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:13:47,169 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:13:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:13:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:13:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:13:47,171 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:13:47,171 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:13:47,171 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:13:47,171 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:13:47,172 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:13:47,172 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:13:47,172 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:13:47,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:13:47,173 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:13:47,173 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:13:47,173 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:13:47,174 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:13:47,174 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:13:47,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-15 03:13:47,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:13:47,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:13:47,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:13:47,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:13:47,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:13:47,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:13:47,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:13:47,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:13:47,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:13:47,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:13:47,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:13:47,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:13:47,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:13:47,176 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:13:47,176 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:13:47,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:13:47,177 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:13:47,177 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:13:47,177 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:13:47,177 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:13:47,177 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:13:47,178 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:13:47,178 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:13:47,178 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:13:47,178 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:13:47,179 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:13:47,179 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:13:47,179 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:13:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:13:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:13:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:13:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:13:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:13:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:13:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:13:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:13:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:13:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:13:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:13:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:13:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:13:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:13:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:13:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:13:47,186 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:13:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:13:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:13:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:13:47,188 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:13:47,188 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:13:47,188 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:13:47,188 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:13:47,189 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:13:47,189 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:13:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:13:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:13:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:13:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:13:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:13:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:13:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:13:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:13:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:13:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:13:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:13:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:13:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:13:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:13:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:13:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:13:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:13:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:13:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:13:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:13:47,201 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:13:47,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:13:47,201 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 03:13:47,201 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:13:47,201 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:13:47,201 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:13:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:13:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:13:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:13:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:13:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:13:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:13:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:13:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:13:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:13:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:13:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:13:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:13:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:13:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:13:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:13:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:13:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:13:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:13:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:13:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:13:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:13:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:13:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:13:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:13:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:13:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:13:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:13:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:13:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:13:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:13:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:13:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:13:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:13:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:13:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:13:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:13:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:13:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:13:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:13:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:13:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:13:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:13:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:13:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:13:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 03:13:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 03:13:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-15 03:13:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:13:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:13:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:13:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:13:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:13:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:13:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:13:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:13:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:13:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:13:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:13:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:13:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:13:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:13:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:13:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:13:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:13:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:13:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:13:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:13:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:13:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:13:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:13:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:13:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:13:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:13:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:13:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:13:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:13:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:13:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:13:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:13:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:13:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:13:51,990 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:13:51,991 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:13:51,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:13:51 BoogieIcfgContainer [2019-10-15 03:13:51,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:13:51,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:13:51,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:13:51,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:13:51,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:13:45" (1/3) ... [2019-10-15 03:13:51,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7239a60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:13:51, skipping insertion in model container [2019-10-15 03:13:51,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:46" (2/3) ... [2019-10-15 03:13:51,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7239a60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:13:51, skipping insertion in model container [2019-10-15 03:13:51,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:13:51" (3/3) ... [2019-10-15 03:13:52,001 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product34.cil.c [2019-10-15 03:13:52,012 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:13:52,021 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:13:52,033 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:13:52,063 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:13:52,063 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:13:52,064 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:13:52,064 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:13:52,064 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:13:52,064 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:13:52,064 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:13:52,064 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:13:52,095 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states. [2019-10-15 03:13:52,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-15 03:13:52,118 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:52,120 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:52,122 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:52,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:52,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1996072285, now seen corresponding path program 1 times [2019-10-15 03:13:52,140 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:52,140 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9673069] [2019-10-15 03:13:52,141 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:52,141 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:52,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:52,790 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:13:52,790 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9673069] [2019-10-15 03:13:52,791 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:52,792 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:13:52,792 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118714972] [2019-10-15 03:13:52,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:13:52,798 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:52,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:13:52,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:13:52,817 INFO L87 Difference]: Start difference. First operand 457 states. Second operand 2 states. [2019-10-15 03:13:52,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:52,900 INFO L93 Difference]: Finished difference Result 696 states and 837 transitions. [2019-10-15 03:13:52,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:13:52,902 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 174 [2019-10-15 03:13:52,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:52,927 INFO L225 Difference]: With dead ends: 696 [2019-10-15 03:13:52,927 INFO L226 Difference]: Without dead ends: 430 [2019-10-15 03:13:52,935 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:13:52,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2019-10-15 03:13:53,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2019-10-15 03:13:53,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2019-10-15 03:13:53,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 510 transitions. [2019-10-15 03:13:53,059 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 510 transitions. Word has length 174 [2019-10-15 03:13:53,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:53,062 INFO L462 AbstractCegarLoop]: Abstraction has 430 states and 510 transitions. [2019-10-15 03:13:53,063 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:13:53,063 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 510 transitions. [2019-10-15 03:13:53,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-15 03:13:53,077 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:53,078 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:53,078 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:53,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:53,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1369392525, now seen corresponding path program 1 times [2019-10-15 03:13:53,079 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:53,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704547097] [2019-10-15 03:13:53,080 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:53,080 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:53,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:53,610 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:13:53,611 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704547097] [2019-10-15 03:13:53,611 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:53,611 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:13:53,612 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706834137] [2019-10-15 03:13:53,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:13:53,615 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:53,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:13:53,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:53,616 INFO L87 Difference]: Start difference. First operand 430 states and 510 transitions. Second operand 3 states. [2019-10-15 03:13:53,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:53,666 INFO L93 Difference]: Finished difference Result 681 states and 800 transitions. [2019-10-15 03:13:53,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:13:53,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2019-10-15 03:13:53,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:53,672 INFO L225 Difference]: With dead ends: 681 [2019-10-15 03:13:53,673 INFO L226 Difference]: Without dead ends: 432 [2019-10-15 03:13:53,676 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:53,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2019-10-15 03:13:53,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2019-10-15 03:13:53,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2019-10-15 03:13:53,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 512 transitions. [2019-10-15 03:13:53,716 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 512 transitions. Word has length 175 [2019-10-15 03:13:53,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:53,717 INFO L462 AbstractCegarLoop]: Abstraction has 432 states and 512 transitions. [2019-10-15 03:13:53,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:13:53,717 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 512 transitions. [2019-10-15 03:13:53,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-15 03:13:53,722 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:53,723 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] [2019-10-15 03:13:53,723 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:53,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:53,723 INFO L82 PathProgramCache]: Analyzing trace with hash 2059788603, now seen corresponding path program 1 times [2019-10-15 03:13:53,724 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:53,724 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529930380] [2019-10-15 03:13:53,725 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:53,726 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:53,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:54,015 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:13:54,016 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529930380] [2019-10-15 03:13:54,016 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:54,017 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:13:54,017 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301138717] [2019-10-15 03:13:54,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:13:54,019 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:54,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:13:54,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:54,020 INFO L87 Difference]: Start difference. First operand 432 states and 512 transitions. Second operand 3 states. [2019-10-15 03:13:54,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:54,107 INFO L93 Difference]: Finished difference Result 848 states and 1034 transitions. [2019-10-15 03:13:54,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:13:54,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-15 03:13:54,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:54,118 INFO L225 Difference]: With dead ends: 848 [2019-10-15 03:13:54,119 INFO L226 Difference]: Without dead ends: 474 [2019-10-15 03:13:54,124 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:54,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-10-15 03:13:54,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 473. [2019-10-15 03:13:54,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2019-10-15 03:13:54,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 583 transitions. [2019-10-15 03:13:54,190 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 583 transitions. Word has length 180 [2019-10-15 03:13:54,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:54,192 INFO L462 AbstractCegarLoop]: Abstraction has 473 states and 583 transitions. [2019-10-15 03:13:54,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:13:54,193 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 583 transitions. [2019-10-15 03:13:54,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-15 03:13:54,202 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:54,203 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:54,203 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:54,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:54,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1610033062, now seen corresponding path program 1 times [2019-10-15 03:13:54,204 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:54,206 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013646473] [2019-10-15 03:13:54,206 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:54,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:54,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-15 03:13:55,275 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013646473] [2019-10-15 03:13:55,276 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:55,276 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-15 03:13:55,276 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417837021] [2019-10-15 03:13:55,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-15 03:13:55,278 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:55,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-15 03:13:55,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:13:55,279 INFO L87 Difference]: Start difference. First operand 473 states and 583 transitions. Second operand 28 states. [2019-10-15 03:14:05,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:14:05,885 INFO L93 Difference]: Finished difference Result 1054 states and 1309 transitions. [2019-10-15 03:14:05,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-15 03:14:05,886 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 181 [2019-10-15 03:14:05,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:14:05,900 INFO L225 Difference]: With dead ends: 1054 [2019-10-15 03:14:05,900 INFO L226 Difference]: Without dead ends: 813 [2019-10-15 03:14:05,905 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=178, Invalid=2078, Unknown=0, NotChecked=0, Total=2256 [2019-10-15 03:14:05,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2019-10-15 03:14:05,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 784. [2019-10-15 03:14:05,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-10-15 03:14:05,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 973 transitions. [2019-10-15 03:14:05,967 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 973 transitions. Word has length 181 [2019-10-15 03:14:05,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:14:05,967 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 973 transitions. [2019-10-15 03:14:05,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-15 03:14:05,968 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 973 transitions. [2019-10-15 03:14:05,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-15 03:14:05,972 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:14:05,972 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:14:05,972 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:14:05,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:14:05,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1446293020, now seen corresponding path program 1 times [2019-10-15 03:14:05,973 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:14:05,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425741952] [2019-10-15 03:14:05,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:14:05,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:14:05,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:14:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:14:06,240 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-15 03:14:06,241 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425741952] [2019-10-15 03:14:06,241 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:14:06,241 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:14:06,241 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845422159] [2019-10-15 03:14:06,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:14:06,242 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:14:06,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:14:06,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:14:06,243 INFO L87 Difference]: Start difference. First operand 784 states and 973 transitions. Second operand 10 states. [2019-10-15 03:14:06,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:14:06,314 INFO L93 Difference]: Finished difference Result 1336 states and 1671 transitions. [2019-10-15 03:14:06,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:14:06,314 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 185 [2019-10-15 03:14:06,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:14:06,323 INFO L225 Difference]: With dead ends: 1336 [2019-10-15 03:14:06,324 INFO L226 Difference]: Without dead ends: 804 [2019-10-15 03:14:06,326 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 [2019-10-15 03:14:06,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2019-10-15 03:14:06,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 788. [2019-10-15 03:14:06,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2019-10-15 03:14:06,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 977 transitions. [2019-10-15 03:14:06,369 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 977 transitions. Word has length 185 [2019-10-15 03:14:06,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:14:06,370 INFO L462 AbstractCegarLoop]: Abstraction has 788 states and 977 transitions. [2019-10-15 03:14:06,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:14:06,371 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 977 transitions. [2019-10-15 03:14:06,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-15 03:14:06,374 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:14:06,375 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:14:06,375 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:14:06,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:14:06,375 INFO L82 PathProgramCache]: Analyzing trace with hash 324242584, now seen corresponding path program 1 times [2019-10-15 03:14:06,376 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:14:06,376 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493645139] [2019-10-15 03:14:06,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:14:06,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:14:06,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:14:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:14:07,488 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-15 03:14:07,488 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493645139] [2019-10-15 03:14:07,489 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:14:07,490 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2019-10-15 03:14:07,490 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077853026] [2019-10-15 03:14:07,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-10-15 03:14:07,491 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:14:07,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-10-15 03:14:07,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=969, Unknown=0, NotChecked=0, Total=1056 [2019-10-15 03:14:07,492 INFO L87 Difference]: Start difference. First operand 788 states and 977 transitions. Second operand 33 states. [2019-10-15 03:14:22,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:14:22,477 INFO L93 Difference]: Finished difference Result 2014 states and 2526 transitions. [2019-10-15 03:14:22,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-15 03:14:22,480 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 187 [2019-10-15 03:14:22,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:14:22,491 INFO L225 Difference]: With dead ends: 2014 [2019-10-15 03:14:22,491 INFO L226 Difference]: Without dead ends: 1474 [2019-10-15 03:14:22,495 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=315, Invalid=3975, Unknown=0, NotChecked=0, Total=4290 [2019-10-15 03:14:22,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2019-10-15 03:14:22,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1454. [2019-10-15 03:14:22,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1454 states.