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_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:13:09,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:13:09,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:13:09,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:13:09,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:13:09,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:13:09,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:13:09,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:13:09,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:13:09,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:13:09,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:13:09,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:13:09,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:13:09,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:13:09,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:13:09,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:13:09,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:13:09,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:13:09,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:13:09,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:13:09,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:13:09,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:13:09,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:13:09,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:13:09,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:13:09,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:13:09,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:13:09,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:13:09,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:13:09,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:13:09,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:13:09,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:13:09,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:13:09,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:13:09,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:13:09,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:13:09,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:13:09,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:13:09,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:13:09,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:13:09,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:13:09,502 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 03:13:09,532 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:13:09,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:13:09,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:13:09,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:13:09,537 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:13:09,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:13:09,538 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:13:09,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:13:09,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:13:09,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:13:09,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:13:09,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:13:09,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:13:09,541 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:13:09,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:13:09,541 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:13:09,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:13:09,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:13:09,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:13:09,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:13:09,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:13:09,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:13:09,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:13:09,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:13:09,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:13:09,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:13:09,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:13:09,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:13:09,544 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 03:13:09,824 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:13:09,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:13:09,840 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:13:09,842 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:13:09,842 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:13:09,843 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product24.cil.c [2019-10-15 03:13:09,917 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d0cab7a2/3eefd86f831b4e788a32ed10c66b0e9a/FLAGb7e498698 [2019-10-15 03:13:10,489 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:13:10,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product24.cil.c [2019-10-15 03:13:10,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d0cab7a2/3eefd86f831b4e788a32ed10c66b0e9a/FLAGb7e498698 [2019-10-15 03:13:10,755 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d0cab7a2/3eefd86f831b4e788a32ed10c66b0e9a [2019-10-15 03:13:10,766 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:13:10,768 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:13:10,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:13:10,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:13:10,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:13:10,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:13:10" (1/1) ... [2019-10-15 03:13:10,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63127057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:10, skipping insertion in model container [2019-10-15 03:13:10,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:13:10" (1/1) ... [2019-10-15 03:13:10,783 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:13:10,849 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:13:11,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:13:11,549 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:13:11,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:13:11,782 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:13:11,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11 WrapperNode [2019-10-15 03:13:11,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:13:11,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:13:11,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:13:11,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:13:11,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:13:11,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:13:11,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:13:11,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:13:11,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (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 03:13:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:13:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:13:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:13:12,023 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-15 03:13:12,024 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:13:12,024 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:13:12,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:13:12,024 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:13:12,024 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:13:12,025 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:13:12,025 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:13:12,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:13:12,025 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:13:12,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:13:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:13:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:13:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:13:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:13:12,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:13:12,027 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:13:12,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:13:12,027 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:13:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:13:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:13:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:13:12,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:13:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:13:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:13:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:13:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:13:12,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-15 03:13:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:13:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:13:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:13:12,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:13:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:13:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:13:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:13:12,031 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:13:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:13:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:13:12,032 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:13:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:13:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:13:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:13:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:13:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:13:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:13:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:13:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:13:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:13:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:13:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:13:12,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:13:12,035 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:13:12,035 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:13:12,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:13:12,035 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:13:12,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:13:12,036 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:13:12,036 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:13:12,036 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:13:12,036 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:13:12,036 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:13:12,036 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:13:12,037 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-15 03:13:12,037 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:13:12,037 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:13:12,037 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:13:12,037 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:13:12,037 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:13:12,038 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:13:12,038 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:13:12,038 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:13:12,038 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:13:12,038 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:13:12,038 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:13:12,038 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:13:12,039 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:13:12,039 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:13:12,039 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:13:12,039 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:13:12,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:13:12,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:13:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:13:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:13:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:13:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:13:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:13:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:13:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:13:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:13:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:13:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:13:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:13:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:13:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:13:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:13:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:13:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:13:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:13:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:13:12,042 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:13:12,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:13:12,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:13:12,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:13:12,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:13:12,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:13:12,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:13:12,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:13:12,043 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:13:12,043 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:13:12,043 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:13:12,043 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:13:12,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:13:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:13:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:13:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:13:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:13:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:13:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:13:12,045 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:13:12,045 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:13:12,045 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:13:12,045 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:13:12,045 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:13:12,045 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:13:12,045 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:13:12,046 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:13:12,046 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-15 03:13:12,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:13:12,046 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:13:12,046 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:13:12,046 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:13:12,047 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:13:12,047 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:13:12,047 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:13:12,047 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:13:12,047 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:13:12,047 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:13:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:13:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:13:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:13:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:13:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:13:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:13:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:13:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:13:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-15 03:13:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:13:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:13:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:13:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:13:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:13:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:13:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:13:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:13:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:13:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:13:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:13:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:13:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:13:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:13:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:13:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:13:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:13:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:13:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:13:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:13:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:13:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:13:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:13:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:13:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:13:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:13:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:13:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:13:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:13:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:13:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:13:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:13:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:13:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:13:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:13:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:13:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:13:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:13:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:13:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:13:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:13:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:13:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:13:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:13:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:13:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:13:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-15 03:13:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:13:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:13:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:13:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:13:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:13:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:13:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:13:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:13:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:13:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:13:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:13:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:13:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:13:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:13:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:13:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:13:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:13:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:13:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:13:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:13:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:13:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:13:12,059 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:13:12,059 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:13:12,059 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:13:12,059 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:13:12,059 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:13:12,059 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:13:12,059 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:13:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:13:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:13:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:13:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:13:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:13:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:13:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:13:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:13:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:13:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:13:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:13:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:13:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:13:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:13:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:13:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:13:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:13:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:13:16,070 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:13:16,070 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:13:16,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:13:16 BoogieIcfgContainer [2019-10-15 03:13:16,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:13:16,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:13:16,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:13:16,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:13:16,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:13:10" (1/3) ... [2019-10-15 03:13:16,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e97b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:13:16, skipping insertion in model container [2019-10-15 03:13:16,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11" (2/3) ... [2019-10-15 03:13:16,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e97b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:13:16, skipping insertion in model container [2019-10-15 03:13:16,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:13:16" (3/3) ... [2019-10-15 03:13:16,082 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product24.cil.c [2019-10-15 03:13:16,091 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:13:16,101 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:13:16,113 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:13:16,145 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:13:16,145 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:13:16,146 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:13:16,146 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:13:16,146 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:13:16,146 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:13:16,146 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:13:16,146 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:13:16,173 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states. [2019-10-15 03:13:16,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-15 03:13:16,191 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:16,192 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, 1, 1, 1, 1, 1, 1, 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 03:13:16,194 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:16,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:16,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1420145409, now seen corresponding path program 1 times [2019-10-15 03:13:16,210 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:16,210 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093633511] [2019-10-15 03:13:16,210 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:16,211 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:16,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:16,878 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:13:16,879 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093633511] [2019-10-15 03:13:16,880 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:16,880 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:13:16,880 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086580610] [2019-10-15 03:13:16,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:13:16,886 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:16,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:13:16,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:13:16,903 INFO L87 Difference]: Start difference. First operand 385 states. Second operand 2 states. [2019-10-15 03:13:16,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:16,968 INFO L93 Difference]: Finished difference Result 571 states and 673 transitions. [2019-10-15 03:13:16,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:13:16,969 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-10-15 03:13:16,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:16,988 INFO L225 Difference]: With dead ends: 571 [2019-10-15 03:13:16,988 INFO L226 Difference]: Without dead ends: 364 [2019-10-15 03:13:16,997 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 03:13:17,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-10-15 03:13:17,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2019-10-15 03:13:17,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2019-10-15 03:13:17,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 426 transitions. [2019-10-15 03:13:17,082 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 426 transitions. Word has length 145 [2019-10-15 03:13:17,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:17,084 INFO L462 AbstractCegarLoop]: Abstraction has 364 states and 426 transitions. [2019-10-15 03:13:17,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:13:17,084 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 426 transitions. [2019-10-15 03:13:17,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 03:13:17,090 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:17,090 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, 1, 1, 1, 1, 1, 1, 1, 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 03:13:17,090 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:17,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:17,091 INFO L82 PathProgramCache]: Analyzing trace with hash 734466794, now seen corresponding path program 1 times [2019-10-15 03:13:17,091 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:17,091 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054848785] [2019-10-15 03:13:17,092 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:17,092 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:17,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:17,300 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:13:17,301 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054848785] [2019-10-15 03:13:17,301 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:17,301 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:13:17,301 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889299304] [2019-10-15 03:13:17,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:13:17,304 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:17,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:13:17,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:17,304 INFO L87 Difference]: Start difference. First operand 364 states and 426 transitions. Second operand 3 states. [2019-10-15 03:13:17,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:17,363 INFO L93 Difference]: Finished difference Result 556 states and 640 transitions. [2019-10-15 03:13:17,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:13:17,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-15 03:13:17,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:17,368 INFO L225 Difference]: With dead ends: 556 [2019-10-15 03:13:17,368 INFO L226 Difference]: Without dead ends: 366 [2019-10-15 03:13:17,371 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 03:13:17,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-10-15 03:13:17,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2019-10-15 03:13:17,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2019-10-15 03:13:17,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 428 transitions. [2019-10-15 03:13:17,433 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 428 transitions. Word has length 146 [2019-10-15 03:13:17,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:17,435 INFO L462 AbstractCegarLoop]: Abstraction has 366 states and 428 transitions. [2019-10-15 03:13:17,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:13:17,436 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 428 transitions. [2019-10-15 03:13:17,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-15 03:13:17,449 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:17,450 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, 1, 1, 1, 1, 1, 1, 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 03:13:17,450 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:17,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:17,451 INFO L82 PathProgramCache]: Analyzing trace with hash 2046107415, now seen corresponding path program 1 times [2019-10-15 03:13:17,452 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:17,452 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976152108] [2019-10-15 03:13:17,452 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:17,453 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:17,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:17,802 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:13:17,803 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976152108] [2019-10-15 03:13:17,803 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:17,804 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:13:17,804 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225843752] [2019-10-15 03:13:17,807 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:13:17,807 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:17,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:13:17,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:17,808 INFO L87 Difference]: Start difference. First operand 366 states and 428 transitions. Second operand 3 states. [2019-10-15 03:13:17,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:17,877 INFO L93 Difference]: Finished difference Result 716 states and 866 transitions. [2019-10-15 03:13:17,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:13:17,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-10-15 03:13:17,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:17,887 INFO L225 Difference]: With dead ends: 716 [2019-10-15 03:13:17,887 INFO L226 Difference]: Without dead ends: 408 [2019-10-15 03:13:17,895 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 03:13:17,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2019-10-15 03:13:17,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 407. [2019-10-15 03:13:17,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-10-15 03:13:17,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 499 transitions. [2019-10-15 03:13:17,939 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 499 transitions. Word has length 158 [2019-10-15 03:13:17,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:17,940 INFO L462 AbstractCegarLoop]: Abstraction has 407 states and 499 transitions. [2019-10-15 03:13:17,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:13:17,941 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 499 transitions. [2019-10-15 03:13:17,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-15 03:13:17,948 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:17,948 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, 1, 1, 1, 1, 1, 1, 1, 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 03:13:17,949 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:17,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:17,950 INFO L82 PathProgramCache]: Analyzing trace with hash -807772373, now seen corresponding path program 1 times [2019-10-15 03:13:17,950 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:17,951 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349554790] [2019-10-15 03:13:17,951 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:17,952 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:17,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:18,293 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:13:18,293 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349554790] [2019-10-15 03:13:18,294 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:18,296 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 03:13:18,296 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450383198] [2019-10-15 03:13:18,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:13:18,298 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:18,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:13:18,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:13:18,298 INFO L87 Difference]: Start difference. First operand 407 states and 499 transitions. Second operand 8 states. [2019-10-15 03:13:18,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:18,358 INFO L93 Difference]: Finished difference Result 585 states and 700 transitions. [2019-10-15 03:13:18,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:13:18,358 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 159 [2019-10-15 03:13:18,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:18,364 INFO L225 Difference]: With dead ends: 585 [2019-10-15 03:13:18,364 INFO L226 Difference]: Without dead ends: 407 [2019-10-15 03:13:18,366 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:13:18,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2019-10-15 03:13:18,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2019-10-15 03:13:18,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-10-15 03:13:18,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 498 transitions. [2019-10-15 03:13:18,386 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 498 transitions. Word has length 159 [2019-10-15 03:13:18,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:18,386 INFO L462 AbstractCegarLoop]: Abstraction has 407 states and 498 transitions. [2019-10-15 03:13:18,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:13:18,387 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 498 transitions. [2019-10-15 03:13:18,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-15 03:13:18,389 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:18,390 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:18,390 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:18,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:18,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1754176789, now seen corresponding path program 1 times [2019-10-15 03:13:18,391 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:18,391 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300876656] [2019-10-15 03:13:18,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:18,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:18,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:19,076 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:13:19,077 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300876656] [2019-10-15 03:13:19,077 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:19,077 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2019-10-15 03:13:19,078 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278801947] [2019-10-15 03:13:19,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-10-15 03:13:19,078 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:19,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-10-15 03:13:19,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2019-10-15 03:13:19,080 INFO L87 Difference]: Start difference. First operand 407 states and 498 transitions. Second operand 29 states. [2019-10-15 03:13:30,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:30,468 INFO L93 Difference]: Finished difference Result 831 states and 988 transitions. [2019-10-15 03:13:30,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-15 03:13:30,468 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 164 [2019-10-15 03:13:30,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:30,474 INFO L225 Difference]: With dead ends: 831 [2019-10-15 03:13:30,475 INFO L226 Difference]: Without dead ends: 616 [2019-10-15 03:13:30,477 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=275, Invalid=3031, Unknown=0, NotChecked=0, Total=3306 [2019-10-15 03:13:30,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-15 03:13:30,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 609. [2019-10-15 03:13:30,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2019-10-15 03:13:30,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 725 transitions. [2019-10-15 03:13:30,528 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 725 transitions. Word has length 164 [2019-10-15 03:13:30,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:30,529 INFO L462 AbstractCegarLoop]: Abstraction has 609 states and 725 transitions. [2019-10-15 03:13:30,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-10-15 03:13:30,529 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 725 transitions. [2019-10-15 03:13:30,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-15 03:13:30,532 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:30,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:30,532 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:30,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:30,533 INFO L82 PathProgramCache]: Analyzing trace with hash -2023223005, now seen corresponding path program 1 times [2019-10-15 03:13:30,533 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:30,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189608280] [2019-10-15 03:13:30,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:30,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:30,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:31,154 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 03:13:31,155 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189608280] [2019-10-15 03:13:31,156 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:31,156 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-15 03:13:31,156 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026377155] [2019-10-15 03:13:31,157 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-15 03:13:31,157 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:31,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-15 03:13:31,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2019-10-15 03:13:31,158 INFO L87 Difference]: Start difference. First operand 609 states and 725 transitions. Second operand 21 states. [2019-10-15 03:13:38,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:38,543 INFO L93 Difference]: Finished difference Result 1285 states and 1473 transitions. [2019-10-15 03:13:38,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-15 03:13:38,544 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 185 [2019-10-15 03:13:38,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:38,549 INFO L225 Difference]: With dead ends: 1285 [2019-10-15 03:13:38,550 INFO L226 Difference]: Without dead ends: 846 [2019-10-15 03:13:38,551 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=213, Invalid=1679, Unknown=0, NotChecked=0, Total=1892 [2019-10-15 03:13:38,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2019-10-15 03:13:38,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 829. [2019-10-15 03:13:38,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2019-10-15 03:13:38,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 969 transitions. [2019-10-15 03:13:38,599 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 969 transitions. Word has length 185 [2019-10-15 03:13:38,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:38,600 INFO L462 AbstractCegarLoop]: Abstraction has 829 states and 969 transitions. [2019-10-15 03:13:38,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-15 03:13:38,600 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 969 transitions. [2019-10-15 03:13:38,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 03:13:38,603 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:38,603 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:38,604 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:38,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:38,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1054190007, now seen corresponding path program 1 times [2019-10-15 03:13:38,604 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:38,605 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651147435] [2019-10-15 03:13:38,605 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:38,605 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:38,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:39,479 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 03:13:39,479 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651147435] [2019-10-15 03:13:39,479 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691409260] [2019-10-15 03:13:39,480 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 [2019-10-15 03:13:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:39,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 2713 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:13:40,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:13:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:13:40,205 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:13:40,464 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:13:40,465 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1694621820] [2019-10-15 03:13:40,493 INFO L162 IcfgInterpreter]: Started Sifa with 176 locations of interest [2019-10-15 03:13:40,494 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:13:40,501 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:13:40,509 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:13:40,509 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs