/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_spec27_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:19:35,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:19:35,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:19:35,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:19:35,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:19:35,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:19:35,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:19:35,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:19:35,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:19:35,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:19:35,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:19:35,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:19:35,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:19:35,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:19:35,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:19:35,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:19:35,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:19:35,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:19:35,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:19:35,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:19:35,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:19:35,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:19:35,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:19:35,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:19:35,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:19:35,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:19:35,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:19:35,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:19:35,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:19:35,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:19:35,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:19:35,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:19:35,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:19:35,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:19:35,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:19:35,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:19:35,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:19:35,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:19:35,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:19:35,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:19:35,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:19:35,467 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 04:19:35,481 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:19:35,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:19:35,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:19:35,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:19:35,483 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:19:35,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:19:35,484 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:19:35,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:19:35,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:19:35,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:19:35,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:19:35,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:19:35,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:19:35,485 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:19:35,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:19:35,485 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:19:35,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:19:35,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:19:35,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:19:35,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:19:35,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:19:35,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:19:35,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:19:35,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:19:35,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:19:35,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:19:35,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:19:35,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:19:35,488 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 04:19:35,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:19:35,797 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:19:35,802 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:19:35,803 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:19:35,804 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:19:35,805 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product35.cil.c [2019-11-07 04:19:35,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/680023a44/43f5c2d20fc741f18bb8bf70e2cdcdf7/FLAG5d50cb773 [2019-11-07 04:19:36,547 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:19:36,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product35.cil.c [2019-11-07 04:19:36,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/680023a44/43f5c2d20fc741f18bb8bf70e2cdcdf7/FLAG5d50cb773 [2019-11-07 04:19:36,740 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/680023a44/43f5c2d20fc741f18bb8bf70e2cdcdf7 [2019-11-07 04:19:36,749 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:19:36,751 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:19:36,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:19:36,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:19:36,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:19:36,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:19:36" (1/1) ... [2019-11-07 04:19:36,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dfb3edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:36, skipping insertion in model container [2019-11-07 04:19:36,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:19:36" (1/1) ... [2019-11-07 04:19:36,768 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:19:36,841 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:19:37,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:19:37,626 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:19:37,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:19:37,864 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:19:37,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:37 WrapperNode [2019-11-07 04:19:37,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:19:37,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:19:37,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:19:37,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:19:37,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:37" (1/1) ... [2019-11-07 04:19:37,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:37" (1/1) ... [2019-11-07 04:19:37,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:37" (1/1) ... [2019-11-07 04:19:37,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:37" (1/1) ... [2019-11-07 04:19:37,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:37" (1/1) ... [2019-11-07 04:19:38,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:37" (1/1) ... [2019-11-07 04:19:38,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:37" (1/1) ... [2019-11-07 04:19:38,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:19:38,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:19:38,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:19:38,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:19:38,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:37" (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 04:19:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:19:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:19:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:19:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:19:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 04:19:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 04:19:38,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:19:38,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:19:38,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:19:38,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:19:38,144 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:19:38,145 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:19:38,145 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:19:38,146 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:19:38,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:19:38,146 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:19:38,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:19:38,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:19:38,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:19:38,149 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:19:38,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:19:38,149 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:19:38,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:19:38,150 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:19:38,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:19:38,150 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:19:38,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:19:38,150 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:19:38,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:19:38,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:19:38,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:19:38,152 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:19:38,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:19:38,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:19:38,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:19:38,153 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:19:38,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:19:38,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:19:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:19:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:19:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:19:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:19:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:19:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:19:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:19:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:19:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:19:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:19:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:19:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:19:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:19:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:19:38,156 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:19:38,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:19:38,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:19:38,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:19:38,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:19:38,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:19:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:19:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:19:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:19:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:19:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:19:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:19:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:19:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:19:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:19:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:19:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:19:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:19:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:19:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:19:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:19:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:19:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:19:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:19:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 04:19:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:19:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:19:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:19:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:19:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:19:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 04:19:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:19:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:19:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:19:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:19:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:19:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:19:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:19:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:19:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:19:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:19:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:19:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:19:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:19:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:19:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-11-07 04:19:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:19:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:19:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:19:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:19:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:19:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:19:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:19:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:19:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:19:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:19:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:19:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:19:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:19:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:19:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:19:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:19:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:19:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:19:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:19:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:19:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:19:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:19:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:19:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:19:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:19:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:19:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:19:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:19:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:19:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:19:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:19:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:19:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:19:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:19:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:19:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:19:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:19:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:19:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:19:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:19:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:19:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:19:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 04:19:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 04:19:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:19:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:19:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:19:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:19:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:19:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:19:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:19:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:19:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:19:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:19:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:19:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:19:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:19:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:19:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:19:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:19:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:19:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:19:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:19:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:19:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:19:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:19:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:19:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:19:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:19:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:19:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:19:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:19:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:19:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:19:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:19:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:19:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:19:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:19:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:19:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:19:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:19:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:19:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:19:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:19:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:19:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:19:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:19:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:19:38,196 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:19:38,196 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:19:38,196 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:19:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:19:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:19:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:19:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:19:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:19:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:19:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:19:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:19:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:19:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:19:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:19:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:19:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:19:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:19:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:19:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:19:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:19:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:19:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:19:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:19:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:19:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:19:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:19:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:19:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:19:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:19:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:19:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:19:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:19:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:19:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:19:38,202 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:19:38,202 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:19:38,202 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:19:38,202 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:19:38,202 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:19:38,202 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 04:19:38,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-11-07 04:19:38,203 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:19:38,203 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:19:38,203 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:19:38,203 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 04:19:38,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:19:38,204 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:19:38,204 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:19:38,204 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:19:38,204 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:19:38,204 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:19:38,204 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:19:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:19:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:19:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:19:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:19:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:19:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:19:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:19:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:19:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:19:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:19:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:19:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:19:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:19:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:19:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:19:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:19:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:19:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:19:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:19:43,016 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:19:43,016 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:19:43,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:19:43 BoogieIcfgContainer [2019-11-07 04:19:43,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:19:43,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:19:43,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:19:43,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:19:43,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:19:36" (1/3) ... [2019-11-07 04:19:43,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240324a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:19:43, skipping insertion in model container [2019-11-07 04:19:43,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:37" (2/3) ... [2019-11-07 04:19:43,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240324a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:19:43, skipping insertion in model container [2019-11-07 04:19:43,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:19:43" (3/3) ... [2019-11-07 04:19:43,026 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product35.cil.c [2019-11-07 04:19:43,036 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:19:43,045 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:19:43,057 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:19:43,086 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:19:43,086 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:19:43,086 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:19:43,086 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:19:43,086 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:19:43,086 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:19:43,087 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:19:43,087 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:19:43,128 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states. [2019-11-07 04:19:43,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-11-07 04:19:43,168 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:43,170 INFO L410 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] [2019-11-07 04:19:43,173 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:43,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:43,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1792393763, now seen corresponding path program 1 times [2019-11-07 04:19:43,189 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:43,190 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558983973] [2019-11-07 04:19:43,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:43,957 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:19:43,957 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558983973] [2019-11-07 04:19:43,958 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:43,959 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:19:43,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101267189] [2019-11-07 04:19:43,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:19:43,967 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:43,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:19:43,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:19:43,984 INFO L87 Difference]: Start difference. First operand 481 states. Second operand 2 states. [2019-11-07 04:19:44,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:44,073 INFO L93 Difference]: Finished difference Result 737 states and 887 transitions. [2019-11-07 04:19:44,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:19:44,075 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 176 [2019-11-07 04:19:44,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:44,096 INFO L225 Difference]: With dead ends: 737 [2019-11-07 04:19:44,096 INFO L226 Difference]: Without dead ends: 454 [2019-11-07 04:19:44,102 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 04:19:44,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-11-07 04:19:44,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2019-11-07 04:19:44,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2019-11-07 04:19:44,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 538 transitions. [2019-11-07 04:19:44,205 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 538 transitions. Word has length 176 [2019-11-07 04:19:44,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:44,208 INFO L462 AbstractCegarLoop]: Abstraction has 454 states and 538 transitions. [2019-11-07 04:19:44,208 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:19:44,209 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 538 transitions. [2019-11-07 04:19:44,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-11-07 04:19:44,218 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:44,219 INFO L410 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] [2019-11-07 04:19:44,219 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:44,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:44,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1638575725, now seen corresponding path program 1 times [2019-11-07 04:19:44,220 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:44,220 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022551826] [2019-11-07 04:19:44,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:19:44,548 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022551826] [2019-11-07 04:19:44,548 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:44,548 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:19:44,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218331159] [2019-11-07 04:19:44,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:19:44,553 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:44,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:19:44,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:19:44,554 INFO L87 Difference]: Start difference. First operand 454 states and 538 transitions. Second operand 3 states. [2019-11-07 04:19:44,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:44,639 INFO L93 Difference]: Finished difference Result 722 states and 849 transitions. [2019-11-07 04:19:44,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:19:44,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-11-07 04:19:44,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:44,652 INFO L225 Difference]: With dead ends: 722 [2019-11-07 04:19:44,652 INFO L226 Difference]: Without dead ends: 456 [2019-11-07 04:19:44,658 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 04:19:44,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2019-11-07 04:19:44,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2019-11-07 04:19:44,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2019-11-07 04:19:44,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 540 transitions. [2019-11-07 04:19:44,721 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 540 transitions. Word has length 177 [2019-11-07 04:19:44,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:44,722 INFO L462 AbstractCegarLoop]: Abstraction has 456 states and 540 transitions. [2019-11-07 04:19:44,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:19:44,722 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 540 transitions. [2019-11-07 04:19:44,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-11-07 04:19:44,729 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:44,729 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:19:44,730 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:44,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:44,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1306047726, now seen corresponding path program 1 times [2019-11-07 04:19:44,730 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:44,730 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691259837] [2019-11-07 04:19:44,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:45,004 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:19:45,004 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691259837] [2019-11-07 04:19:45,005 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:45,005 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:19:45,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114512282] [2019-11-07 04:19:45,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:19:45,007 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:45,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:19:45,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:19:45,008 INFO L87 Difference]: Start difference. First operand 456 states and 540 transitions. Second operand 3 states. [2019-11-07 04:19:45,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:45,063 INFO L93 Difference]: Finished difference Result 898 states and 1093 transitions. [2019-11-07 04:19:45,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:19:45,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-11-07 04:19:45,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:45,069 INFO L225 Difference]: With dead ends: 898 [2019-11-07 04:19:45,069 INFO L226 Difference]: Without dead ends: 500 [2019-11-07 04:19:45,071 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 04:19:45,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2019-11-07 04:19:45,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 499. [2019-11-07 04:19:45,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2019-11-07 04:19:45,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 614 transitions. [2019-11-07 04:19:45,145 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 614 transitions. Word has length 189 [2019-11-07 04:19:45,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:45,147 INFO L462 AbstractCegarLoop]: Abstraction has 499 states and 614 transitions. [2019-11-07 04:19:45,147 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:19:45,147 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 614 transitions. [2019-11-07 04:19:45,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-11-07 04:19:45,156 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:45,157 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:19:45,157 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:45,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:45,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1586240380, now seen corresponding path program 1 times [2019-11-07 04:19:45,158 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:45,160 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667290252] [2019-11-07 04:19:45,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-07 04:19:46,282 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667290252] [2019-11-07 04:19:46,282 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:46,282 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-11-07 04:19:46,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424766695] [2019-11-07 04:19:46,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-07 04:19:46,283 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:46,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-07 04:19:46,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-11-07 04:19:46,284 INFO L87 Difference]: Start difference. First operand 499 states and 614 transitions. Second operand 28 states. [2019-11-07 04:19:57,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:57,753 INFO L93 Difference]: Finished difference Result 1114 states and 1382 transitions. [2019-11-07 04:19:57,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-11-07 04:19:57,754 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 190 [2019-11-07 04:19:57,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:57,765 INFO L225 Difference]: With dead ends: 1114 [2019-11-07 04:19:57,765 INFO L226 Difference]: Without dead ends: 856 [2019-11-07 04:19:57,767 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=178, Invalid=2078, Unknown=0, NotChecked=0, Total=2256 [2019-11-07 04:19:57,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-11-07 04:19:57,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 827. [2019-11-07 04:19:57,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-11-07 04:19:57,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1025 transitions. [2019-11-07 04:19:57,820 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1025 transitions. Word has length 190 [2019-11-07 04:19:57,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:57,821 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 1025 transitions. [2019-11-07 04:19:57,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-07 04:19:57,821 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1025 transitions. [2019-11-07 04:19:57,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-11-07 04:19:57,825 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:57,826 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:19:57,826 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:57,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:57,826 INFO L82 PathProgramCache]: Analyzing trace with hash -2055650954, now seen corresponding path program 1 times [2019-11-07 04:19:57,827 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:57,827 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190633532] [2019-11-07 04:19:57,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:58,090 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-07 04:19:58,090 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190633532] [2019-11-07 04:19:58,091 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:58,091 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:19:58,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49030486] [2019-11-07 04:19:58,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:19:58,092 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:58,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:19:58,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:19:58,093 INFO L87 Difference]: Start difference. First operand 827 states and 1025 transitions. Second operand 10 states. [2019-11-07 04:19:58,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:58,190 INFO L93 Difference]: Finished difference Result 1413 states and 1765 transitions. [2019-11-07 04:19:58,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 04:19:58,191 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2019-11-07 04:19:58,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:58,197 INFO L225 Difference]: With dead ends: 1413 [2019-11-07 04:19:58,198 INFO L226 Difference]: Without dead ends: 847 [2019-11-07 04:19:58,200 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:19:58,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2019-11-07 04:19:58,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 831. [2019-11-07 04:19:58,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2019-11-07 04:19:58,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1029 transitions. [2019-11-07 04:19:58,248 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1029 transitions. Word has length 194 [2019-11-07 04:19:58,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:58,252 INFO L462 AbstractCegarLoop]: Abstraction has 831 states and 1029 transitions. [2019-11-07 04:19:58,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:19:58,252 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1029 transitions. [2019-11-07 04:19:58,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-11-07 04:19:58,257 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:58,257 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:19:58,258 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:58,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:58,258 INFO L82 PathProgramCache]: Analyzing trace with hash 788401274, now seen corresponding path program 1 times [2019-11-07 04:19:58,258 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:58,258 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758485416] [2019-11-07 04:19:58,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-07 04:19:59,480 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758485416] [2019-11-07 04:19:59,481 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:59,481 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2019-11-07 04:19:59,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246541088] [2019-11-07 04:19:59,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-11-07 04:19:59,482 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:59,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-11-07 04:19:59,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1097, Unknown=0, NotChecked=0, Total=1190 [2019-11-07 04:19:59,483 INFO L87 Difference]: Start difference. First operand 831 states and 1029 transitions. Second operand 35 states.