/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:15:23,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:15:23,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:15:23,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:15:23,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:15:23,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:15:23,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:15:23,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:15:23,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:15:23,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:15:23,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:15:23,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:15:23,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:15:23,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:15:23,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:15:23,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:15:23,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:15:23,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:15:23,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:15:23,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:15:23,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:15:23,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:15:23,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:15:23,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:15:23,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:15:23,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:15:23,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:15:23,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:15:23,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:15:23,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:15:23,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:15:23,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:15:23,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:15:23,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:15:23,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:15:23,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:15:23,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:15:23,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:15:23,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:15:23,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:15:23,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:15:23,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 04:15:23,192 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:15:23,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:15:23,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:15:23,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:15:23,196 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:15:23,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:15:23,200 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:15:23,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:15:23,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:15:23,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:15:23,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:15:23,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:15:23,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:15:23,201 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:15:23,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:15:23,202 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:15:23,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:15:23,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:15:23,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:15:23,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:15:23,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:15:23,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:15:23,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:15:23,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:15:23,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:15:23,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:15:23,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:15:23,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:15:23,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:15:23,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:15:23,530 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:15:23,534 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:15:23,536 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:15:23,536 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:15:23,537 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product18.cil.c [2019-11-07 04:15:23,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d2ffd109/311343c1b3e646409e16e22a90d13d45/FLAG2d95d9620 [2019-11-07 04:15:24,213 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:15:24,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product18.cil.c [2019-11-07 04:15:24,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d2ffd109/311343c1b3e646409e16e22a90d13d45/FLAG2d95d9620 [2019-11-07 04:15:24,491 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d2ffd109/311343c1b3e646409e16e22a90d13d45 [2019-11-07 04:15:24,504 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:15:24,506 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:15:24,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:15:24,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:15:24,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:15:24,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:15:24" (1/1) ... [2019-11-07 04:15:24,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48496e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:24, skipping insertion in model container [2019-11-07 04:15:24,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:15:24" (1/1) ... [2019-11-07 04:15:24,551 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:15:24,637 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:15:25,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:15:25,395 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:15:25,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:15:25,629 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:15:25,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:25 WrapperNode [2019-11-07 04:15:25,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:15:25,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:15:25,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:15:25,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:15:25,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:25" (1/1) ... [2019-11-07 04:15:25,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:25" (1/1) ... [2019-11-07 04:15:25,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:25" (1/1) ... [2019-11-07 04:15:25,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:25" (1/1) ... [2019-11-07 04:15:25,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:25" (1/1) ... [2019-11-07 04:15:25,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:25" (1/1) ... [2019-11-07 04:15:25,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:25" (1/1) ... [2019-11-07 04:15:25,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:15:25,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:15:25,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:15:25,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:15:25,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:15:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:15:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:15:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:15:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-11-07 04:15:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 04:15:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:15:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:15:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:15:25,912 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:15:25,912 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:15:25,912 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:15:25,912 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:15:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:15:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:15:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:15:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:15:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:15:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:15:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:15:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:15:25,915 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:15:25,915 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:15:25,915 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:15:25,915 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:15:25,916 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:15:25,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:15:25,916 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:15:25,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:15:25,916 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:15:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:15:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:15:25,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:15:25,918 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:15:25,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:15:25,918 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:15:25,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:15:25,918 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:15:25,919 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:15:25,919 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:15:25,919 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:15:25,919 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:15:25,919 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:15:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:15:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:15:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:15:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:15:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:15:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:15:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:15:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:15:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:15:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:15:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:15:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:15:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:15:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:15:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:15:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:15:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:15:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:15:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:15:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:15:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:15:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:15:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:15:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:15:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:15:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:15:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:15:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:15:25,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:15:25,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:15:25,925 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:15:25,925 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:15:25,925 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:15:25,925 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-11-07 04:15:25,926 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:15:25,926 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:15:25,926 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:15:25,926 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:15:25,926 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:15:25,927 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:15:25,927 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:15:25,927 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:15:25,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:15:25,927 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:15:25,927 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:15:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:15:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:15:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:15:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-11-07 04:15:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:15:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:15:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:15:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:15:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:15:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:15:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:15:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:15:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:15:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:15:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:15:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:15:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:15:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:15:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:15:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:15:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:15:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:15:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:15:25,932 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:15:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:15:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:15:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:15:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:15:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:15:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:15:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:15:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:15:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:15:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:15:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:15:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:15:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:15:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:15:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:15:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-11-07 04:15:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:15:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 04:15:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:15:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:15:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:15:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:15:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:15:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:15:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:15:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:15:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:15:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:15:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:15:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:15:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:15:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:15:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:15:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:15:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:15:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:15:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:15:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:15:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:15:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:15:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:15:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:15:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:15:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:15:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:15:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:15:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:15:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:15:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:15:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:15:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:15:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:15:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:15:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:15:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:15:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:15:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:15:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:15:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:15:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:15:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:15:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:15:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:15:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:15:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:15:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:15:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:15:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:15:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:15:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:15:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:15:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:15:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:15:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:15:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:15:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:15:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:15:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:15:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:15:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:15:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:15:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:15:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:15:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:15:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:15:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:15:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:15:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:15:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:15:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:15:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:15:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:15:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:15:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:15:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:15:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:15:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:15:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:15:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:15:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:15:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:15:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:15:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:15:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:15:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:15:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:15:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:15:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:15:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-11-07 04:15:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:15:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-11-07 04:15:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:15:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:15:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:15:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:15:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:15:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:15:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:15:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:15:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:15:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:15:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:15:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:15:25,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:15:25,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:15:25,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:15:30,534 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:15:30,535 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:15:30,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:15:30 BoogieIcfgContainer [2019-11-07 04:15:30,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:15:30,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:15:30,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:15:30,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:15:30,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:15:24" (1/3) ... [2019-11-07 04:15:30,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0adc00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:15:30, skipping insertion in model container [2019-11-07 04:15:30,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:15:25" (2/3) ... [2019-11-07 04:15:30,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0adc00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:15:30, skipping insertion in model container [2019-11-07 04:15:30,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:15:30" (3/3) ... [2019-11-07 04:15:30,545 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product18.cil.c [2019-11-07 04:15:30,556 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:15:30,565 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:15:30,577 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:15:30,607 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:15:30,607 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:15:30,607 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:15:30,607 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:15:30,607 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:15:30,608 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:15:30,608 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:15:30,608 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:15:30,635 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states. [2019-11-07 04:15:30,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-11-07 04:15:30,653 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:15:30,654 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:15:30,656 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:15:30,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:15:30,662 INFO L82 PathProgramCache]: Analyzing trace with hash 53908305, now seen corresponding path program 1 times [2019-11-07 04:15:30,672 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:15:30,673 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869536873] [2019-11-07 04:15:30,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:15:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:15:31,275 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:15:31,276 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869536873] [2019-11-07 04:15:31,276 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:15:31,277 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:15:31,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194285576] [2019-11-07 04:15:31,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:15:31,283 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:15:31,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:15:31,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:15:31,299 INFO L87 Difference]: Start difference. First operand 347 states. Second operand 2 states. [2019-11-07 04:15:31,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:15:31,357 INFO L93 Difference]: Finished difference Result 470 states and 548 transitions. [2019-11-07 04:15:31,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:15:31,359 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 144 [2019-11-07 04:15:31,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:15:31,377 INFO L225 Difference]: With dead ends: 470 [2019-11-07 04:15:31,377 INFO L226 Difference]: Without dead ends: 310 [2019-11-07 04:15:31,383 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:15:31,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2019-11-07 04:15:31,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2019-11-07 04:15:31,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2019-11-07 04:15:31,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 361 transitions. [2019-11-07 04:15:31,521 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 361 transitions. Word has length 144 [2019-11-07 04:15:31,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:15:31,525 INFO L462 AbstractCegarLoop]: Abstraction has 310 states and 361 transitions. [2019-11-07 04:15:31,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:15:31,525 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 361 transitions. [2019-11-07 04:15:31,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-11-07 04:15:31,541 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:15:31,541 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:15:31,542 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:15:31,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:15:31,543 INFO L82 PathProgramCache]: Analyzing trace with hash -233144010, now seen corresponding path program 1 times [2019-11-07 04:15:31,543 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:15:31,543 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894470123] [2019-11-07 04:15:31,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:15:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:15:31,769 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:15:31,769 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894470123] [2019-11-07 04:15:31,769 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:15:31,770 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:15:31,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135850809] [2019-11-07 04:15:31,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:15:31,772 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:15:31,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:15:31,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:15:31,773 INFO L87 Difference]: Start difference. First operand 310 states and 361 transitions. Second operand 3 states. [2019-11-07 04:15:31,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:15:31,819 INFO L93 Difference]: Finished difference Result 455 states and 517 transitions. [2019-11-07 04:15:31,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:15:31,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2019-11-07 04:15:31,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:15:31,831 INFO L225 Difference]: With dead ends: 455 [2019-11-07 04:15:31,832 INFO L226 Difference]: Without dead ends: 312 [2019-11-07 04:15:31,841 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:15:31,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2019-11-07 04:15:31,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2019-11-07 04:15:31,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2019-11-07 04:15:31,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 363 transitions. [2019-11-07 04:15:31,872 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 363 transitions. Word has length 145 [2019-11-07 04:15:31,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:15:31,873 INFO L462 AbstractCegarLoop]: Abstraction has 312 states and 363 transitions. [2019-11-07 04:15:31,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:15:31,873 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 363 transitions. [2019-11-07 04:15:31,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-11-07 04:15:31,876 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:15:31,876 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:15:31,877 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:15:31,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:15:31,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1568836333, now seen corresponding path program 1 times [2019-11-07 04:15:31,877 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:15:31,878 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116299991] [2019-11-07 04:15:31,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:15:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:15:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:15:32,109 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116299991] [2019-11-07 04:15:32,110 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:15:32,110 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:15:32,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467757437] [2019-11-07 04:15:32,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:15:32,111 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:15:32,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:15:32,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:15:32,112 INFO L87 Difference]: Start difference. First operand 312 states and 363 transitions. Second operand 3 states. [2019-11-07 04:15:32,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:15:32,166 INFO L93 Difference]: Finished difference Result 606 states and 733 transitions. [2019-11-07 04:15:32,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:15:32,167 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-11-07 04:15:32,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:15:32,173 INFO L225 Difference]: With dead ends: 606 [2019-11-07 04:15:32,173 INFO L226 Difference]: Without dead ends: 352 [2019-11-07 04:15:32,178 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:15:32,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2019-11-07 04:15:32,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 351. [2019-11-07 04:15:32,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-11-07 04:15:32,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 431 transitions. [2019-11-07 04:15:32,273 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 431 transitions. Word has length 154 [2019-11-07 04:15:32,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:15:32,274 INFO L462 AbstractCegarLoop]: Abstraction has 351 states and 431 transitions. [2019-11-07 04:15:32,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:15:32,274 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 431 transitions. [2019-11-07 04:15:32,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-11-07 04:15:32,281 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:15:32,281 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:15:32,281 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:15:32,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:15:32,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1524694910, now seen corresponding path program 1 times [2019-11-07 04:15:32,285 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:15:32,285 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238623456] [2019-11-07 04:15:32,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:15:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:15:32,478 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:15:32,478 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238623456] [2019-11-07 04:15:32,479 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:15:32,479 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:15:32,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281949614] [2019-11-07 04:15:32,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:15:32,480 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:15:32,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:15:32,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:15:32,483 INFO L87 Difference]: Start difference. First operand 351 states and 431 transitions. Second operand 3 states. [2019-11-07 04:15:32,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:15:32,525 INFO L93 Difference]: Finished difference Result 720 states and 932 transitions. [2019-11-07 04:15:32,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:15:32,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-11-07 04:15:32,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:15:32,531 INFO L225 Difference]: With dead ends: 720 [2019-11-07 04:15:32,532 INFO L226 Difference]: Without dead ends: 427 [2019-11-07 04:15:32,539 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:15:32,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2019-11-07 04:15:32,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 426. [2019-11-07 04:15:32,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2019-11-07 04:15:32,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 561 transitions. [2019-11-07 04:15:32,579 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 561 transitions. Word has length 155 [2019-11-07 04:15:32,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:15:32,580 INFO L462 AbstractCegarLoop]: Abstraction has 426 states and 561 transitions. [2019-11-07 04:15:32,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:15:32,580 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 561 transitions. [2019-11-07 04:15:32,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-11-07 04:15:32,587 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:15:32,588 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:15:32,588 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:15:32,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:15:32,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1076299565, now seen corresponding path program 1 times [2019-11-07 04:15:32,589 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:15:32,589 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485173432] [2019-11-07 04:15:32,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:15:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:15:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:15:32,778 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485173432] [2019-11-07 04:15:32,779 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:15:32,779 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:15:32,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647311624] [2019-11-07 04:15:32,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:15:32,780 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:15:32,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:15:32,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:15:32,781 INFO L87 Difference]: Start difference. First operand 426 states and 561 transitions. Second operand 3 states. [2019-11-07 04:15:32,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:15:32,821 INFO L93 Difference]: Finished difference Result 939 states and 1312 transitions. [2019-11-07 04:15:32,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:15:32,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-11-07 04:15:32,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:15:32,827 INFO L225 Difference]: With dead ends: 939 [2019-11-07 04:15:32,827 INFO L226 Difference]: Without dead ends: 571 [2019-11-07 04:15:32,829 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:15:32,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2019-11-07 04:15:32,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 570. [2019-11-07 04:15:32,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2019-11-07 04:15:32,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 809 transitions. [2019-11-07 04:15:32,872 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 809 transitions. Word has length 156 [2019-11-07 04:15:32,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:15:32,873 INFO L462 AbstractCegarLoop]: Abstraction has 570 states and 809 transitions. [2019-11-07 04:15:32,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:15:32,873 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 809 transitions. [2019-11-07 04:15:32,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-11-07 04:15:32,878 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:15:32,878 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:15:32,878 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:15:32,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:15:32,879 INFO L82 PathProgramCache]: Analyzing trace with hash -89329421, now seen corresponding path program 1 times [2019-11-07 04:15:32,879 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:15:32,879 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440274782] [2019-11-07 04:15:32,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:15:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:15:33,094 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-11-07 04:15:33,095 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440274782] [2019-11-07 04:15:33,095 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140541294] [2019-11-07 04:15:33,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:15:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:15:33,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 2533 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:15:33,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:15:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:15:33,871 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:15:34,162 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:15:34,163 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [62217379] [2019-11-07 04:15:34,215 INFO L159 IcfgInterpreter]: Started Sifa with 145 locations of interest [2019-11-07 04:15:34,215 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:15:34,223 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:15:34,231 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:15:34,231 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs