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_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:08:33,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:08:33,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:08:33,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:08:33,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:08:33,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:08:33,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:08:33,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:08:33,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:08:33,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:08:33,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:08:33,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:08:33,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:08:33,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:08:33,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:08:33,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:08:33,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:08:33,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:08:33,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:08:33,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:08:33,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:08:33,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:08:33,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:08:33,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:08:33,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:08:33,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:08:33,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:08:33,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:08:33,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:08:33,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:08:33,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:08:33,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:08:33,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:08:33,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:08:33,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:08:33,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:08:33,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:08:33,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:08:33,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:08:33,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:08:33,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:08:33,444 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:08:33,458 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:08:33,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:08:33,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:08:33,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:08:33,460 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:08:33,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:08:33,460 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:08:33,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:08:33,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:08:33,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:08:33,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:08:33,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:08:33,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:08:33,462 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:08:33,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:08:33,462 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:08:33,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:08:33,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:08:33,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:08:33,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:08:33,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:08:33,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:08:33,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:08:33,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:08:33,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:08:33,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:08:33,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:08:33,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:08:33,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:08:33,741 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:08:33,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:08:33,762 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:08:33,764 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:08:33,765 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:08:33,766 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product29.cil.c [2019-10-13 23:08:33,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36bc4709c/c1effc3746c44e5aba2d6fabc164475d/FLAG6325a577a [2019-10-13 23:08:34,508 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:08:34,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product29.cil.c [2019-10-13 23:08:34,541 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36bc4709c/c1effc3746c44e5aba2d6fabc164475d/FLAG6325a577a [2019-10-13 23:08:34,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36bc4709c/c1effc3746c44e5aba2d6fabc164475d [2019-10-13 23:08:34,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:08:34,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:08:34,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:08:34,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:08:34,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:08:34,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:08:34" (1/1) ... [2019-10-13 23:08:34,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df57af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:34, skipping insertion in model container [2019-10-13 23:08:34,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:08:34" (1/1) ... [2019-10-13 23:08:34,735 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:08:34,822 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:08:35,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:08:35,596 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:08:35,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:08:35,866 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:08:35,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:35 WrapperNode [2019-10-13 23:08:35,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:08:35,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:08:35,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:08:35,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:08:35,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:35" (1/1) ... [2019-10-13 23:08:35,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:35" (1/1) ... [2019-10-13 23:08:35,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:35" (1/1) ... [2019-10-13 23:08:35,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:35" (1/1) ... [2019-10-13 23:08:36,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:35" (1/1) ... [2019-10-13 23:08:36,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:35" (1/1) ... [2019-10-13 23:08:36,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:35" (1/1) ... [2019-10-13 23:08:36,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:08:36,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:08:36,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:08:36,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:08:36,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:08:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:08:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:08:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:08:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:08:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:08:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:08:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:08:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:08:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:08:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:08:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:08:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:08:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:08:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:08:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:08:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:08:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:08:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:08:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:08:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:08:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:08:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:08:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:08:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:08:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:08:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:08:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:08:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:08:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:08:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:08:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:08:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:08:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:08:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:08:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:08:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:08:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:08:36,239 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:08:36,239 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:08:36,239 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:08:36,239 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:08:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:08:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:08:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:08:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:08:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:08:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:08:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:08:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:08:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:08:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:08:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:08:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:08:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:08:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:08:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:08:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:08:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:08:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:08:36,243 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:08:36,243 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:08:36,244 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:08:36,244 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:08:36,244 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:08:36,244 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:08:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:08:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:08:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:08:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:08:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:08:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:08:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:08:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:08:36,247 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:08:36,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:08:36,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:08:36,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:08:36,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:08:36,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:08:36,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:08:36,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:08:36,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:08:36,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:08:36,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:08:36,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:08:36,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:08:36,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:08:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:08:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:08:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:08:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:08:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:08:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:08:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:08:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:08:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:08:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:08:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:08:36,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:08:36,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:08:36,253 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:08:36,253 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:08:36,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:08:36,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:08:36,253 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:08:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:08:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:08:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:08:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:08:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:08:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:08:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:08:36,255 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:08:36,255 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:08:36,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:08:36,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:08:36,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:08:36,256 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:08:36,256 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:08:36,256 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:08:36,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:08:36,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:08:36,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:08:36,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:08:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:08:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:08:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:08:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:08:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:08:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:08:36,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:08:36,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:08:36,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:08:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:08:36,264 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:08:36,265 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:08:36,265 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:08:36,265 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:08:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:08:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:08:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:08:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:08:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:08:36,267 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:08:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:08:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:08:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:08:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:08:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:08:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:08:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:08:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:08:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:08:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:08:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:08:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:08:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:08:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:08:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:08:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:08:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:08:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:08:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:08:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:08:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:08:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:08:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:08:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:08:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:08:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:08:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:08:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:08:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:08:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:08:36,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:08:36,280 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:08:36,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:08:36,280 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:08:36,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:08:36,280 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:08:36,280 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:08:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:08:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:08:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:08:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:08:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:08:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:08:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:08:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:08:36,282 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:08:36,282 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:08:36,282 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:08:36,282 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:08:36,282 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:08:36,282 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:08:36,282 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:08:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:08:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:08:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:08:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:08:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:08:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:08:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:08:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:08:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:08:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:08:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:08:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:08:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:08:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:08:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:08:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:08:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:08:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:08:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:08:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:08:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:08:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:08:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:08:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:08:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:08:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:08:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:08:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:08:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:08:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:08:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:08:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:08:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:08:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:08:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:08:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:08:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:08:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:08:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:08:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:08:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:08:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:08:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:08:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:08:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:08:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:08:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:08:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:08:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:08:40,766 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:08:40,767 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:08:40,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:08:40 BoogieIcfgContainer [2019-10-13 23:08:40,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:08:40,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:08:40,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:08:40,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:08:40,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:08:34" (1/3) ... [2019-10-13 23:08:40,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61523035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:08:40, skipping insertion in model container [2019-10-13 23:08:40,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:35" (2/3) ... [2019-10-13 23:08:40,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61523035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:08:40, skipping insertion in model container [2019-10-13 23:08:40,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:08:40" (3/3) ... [2019-10-13 23:08:40,777 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product29.cil.c [2019-10-13 23:08:40,787 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:08:40,797 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:08:40,809 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:08:40,851 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:08:40,851 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:08:40,852 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:08:40,852 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:08:40,852 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:08:40,852 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:08:40,852 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:08:40,852 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:08:40,883 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states. [2019-10-13 23:08:40,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-13 23:08:40,904 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:40,905 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:40,907 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:40,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:40,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1436002959, now seen corresponding path program 1 times [2019-10-13 23:08:40,924 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:40,924 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748255644] [2019-10-13 23:08:40,925 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:40,925 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:40,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:41,618 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:08:41,619 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748255644] [2019-10-13 23:08:41,620 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:41,620 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:08:41,620 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584276111] [2019-10-13 23:08:41,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:08:41,627 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:41,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:08:41,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:08:41,644 INFO L87 Difference]: Start difference. First operand 420 states. Second operand 2 states. [2019-10-13 23:08:41,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:41,717 INFO L93 Difference]: Finished difference Result 591 states and 711 transitions. [2019-10-13 23:08:41,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:08:41,718 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 172 [2019-10-13 23:08:41,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:41,741 INFO L225 Difference]: With dead ends: 591 [2019-10-13 23:08:41,742 INFO L226 Difference]: Without dead ends: 374 [2019-10-13 23:08:41,748 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:08:41,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2019-10-13 23:08:41,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2019-10-13 23:08:41,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2019-10-13 23:08:41,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 444 transitions. [2019-10-13 23:08:41,836 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 444 transitions. Word has length 172 [2019-10-13 23:08:41,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:41,839 INFO L462 AbstractCegarLoop]: Abstraction has 374 states and 444 transitions. [2019-10-13 23:08:41,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:08:41,839 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 444 transitions. [2019-10-13 23:08:41,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-13 23:08:41,846 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:41,846 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:41,847 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:41,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:41,847 INFO L82 PathProgramCache]: Analyzing trace with hash 89763548, now seen corresponding path program 1 times [2019-10-13 23:08:41,847 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:41,848 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592350987] [2019-10-13 23:08:41,848 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:41,848 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:41,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:42,220 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:08:42,221 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592350987] [2019-10-13 23:08:42,221 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:42,221 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:42,221 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607994619] [2019-10-13 23:08:42,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:42,226 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:42,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:42,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:42,227 INFO L87 Difference]: Start difference. First operand 374 states and 444 transitions. Second operand 3 states. [2019-10-13 23:08:42,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:42,316 INFO L93 Difference]: Finished difference Result 576 states and 675 transitions. [2019-10-13 23:08:42,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:42,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2019-10-13 23:08:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:42,330 INFO L225 Difference]: With dead ends: 576 [2019-10-13 23:08:42,330 INFO L226 Difference]: Without dead ends: 376 [2019-10-13 23:08:42,336 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:42,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2019-10-13 23:08:42,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2019-10-13 23:08:42,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2019-10-13 23:08:42,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 446 transitions. [2019-10-13 23:08:42,405 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 446 transitions. Word has length 173 [2019-10-13 23:08:42,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:42,407 INFO L462 AbstractCegarLoop]: Abstraction has 376 states and 446 transitions. [2019-10-13 23:08:42,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:42,407 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 446 transitions. [2019-10-13 23:08:42,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-13 23:08:42,413 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:42,413 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:42,414 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:42,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:42,414 INFO L82 PathProgramCache]: Analyzing trace with hash -494706049, now seen corresponding path program 1 times [2019-10-13 23:08:42,414 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:42,415 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254123925] [2019-10-13 23:08:42,415 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:42,416 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:42,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:42,658 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:08:42,659 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254123925] [2019-10-13 23:08:42,659 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:42,659 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:42,659 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940452920] [2019-10-13 23:08:42,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:42,663 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:42,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:42,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:42,663 INFO L87 Difference]: Start difference. First operand 376 states and 446 transitions. Second operand 3 states. [2019-10-13 23:08:42,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:42,732 INFO L93 Difference]: Finished difference Result 734 states and 899 transitions. [2019-10-13 23:08:42,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:42,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-13 23:08:42,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:42,740 INFO L225 Difference]: With dead ends: 734 [2019-10-13 23:08:42,741 INFO L226 Difference]: Without dead ends: 416 [2019-10-13 23:08:42,743 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:42,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-10-13 23:08:42,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 415. [2019-10-13 23:08:42,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2019-10-13 23:08:42,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 514 transitions. [2019-10-13 23:08:42,798 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 514 transitions. Word has length 178 [2019-10-13 23:08:42,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:42,800 INFO L462 AbstractCegarLoop]: Abstraction has 415 states and 514 transitions. [2019-10-13 23:08:42,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:42,800 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 514 transitions. [2019-10-13 23:08:42,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-13 23:08:42,809 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:42,810 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:42,810 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:42,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:42,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1430160923, now seen corresponding path program 1 times [2019-10-13 23:08:42,811 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:42,811 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985445960] [2019-10-13 23:08:42,811 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:42,811 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:42,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:43,687 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:08:43,688 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985445960] [2019-10-13 23:08:43,688 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:43,688 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-13 23:08:43,688 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140122143] [2019-10-13 23:08:43,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-13 23:08:43,689 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:43,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-13 23:08:43,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-13 23:08:43,690 INFO L87 Difference]: Start difference. First operand 415 states and 514 transitions. Second operand 28 states. [2019-10-13 23:08:52,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:52,299 INFO L93 Difference]: Finished difference Result 898 states and 1120 transitions. [2019-10-13 23:08:52,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-13 23:08:52,299 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 179 [2019-10-13 23:08:52,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:52,306 INFO L225 Difference]: With dead ends: 898 [2019-10-13 23:08:52,306 INFO L226 Difference]: Without dead ends: 706 [2019-10-13 23:08:52,308 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=178, Invalid=2078, Unknown=0, NotChecked=0, Total=2256 [2019-10-13 23:08:52,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2019-10-13 23:08:52,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 677. [2019-10-13 23:08:52,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2019-10-13 23:08:52,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 844 transitions. [2019-10-13 23:08:52,348 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 844 transitions. Word has length 179 [2019-10-13 23:08:52,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:52,349 INFO L462 AbstractCegarLoop]: Abstraction has 677 states and 844 transitions. [2019-10-13 23:08:52,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-13 23:08:52,349 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 844 transitions. [2019-10-13 23:08:52,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-13 23:08:52,353 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:52,354 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:52,354 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:52,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:52,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1590483871, now seen corresponding path program 1 times [2019-10-13 23:08:52,355 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:52,355 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495872286] [2019-10-13 23:08:52,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:52,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:52,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:52,561 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:08:52,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495872286] [2019-10-13 23:08:52,562 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:52,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:08:52,562 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399331806] [2019-10-13 23:08:52,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:08:52,563 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:52,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:08:52,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:08:52,563 INFO L87 Difference]: Start difference. First operand 677 states and 844 transitions. Second operand 10 states. [2019-10-13 23:08:52,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:52,644 INFO L93 Difference]: Finished difference Result 1131 states and 1422 transitions. [2019-10-13 23:08:52,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:08:52,644 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 183 [2019-10-13 23:08:52,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:52,650 INFO L225 Difference]: With dead ends: 1131 [2019-10-13 23:08:52,650 INFO L226 Difference]: Without dead ends: 697 [2019-10-13 23:08:52,652 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:08:52,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2019-10-13 23:08:52,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 681. [2019-10-13 23:08:52,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 681 states. [2019-10-13 23:08:52,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 847 transitions. [2019-10-13 23:08:52,695 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 847 transitions. Word has length 183 [2019-10-13 23:08:52,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:52,696 INFO L462 AbstractCegarLoop]: Abstraction has 681 states and 847 transitions. [2019-10-13 23:08:52,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:08:52,696 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 847 transitions. [2019-10-13 23:08:52,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-13 23:08:52,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:52,701 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:52,702 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:52,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:52,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1833101563, now seen corresponding path program 1 times [2019-10-13 23:08:52,702 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:52,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90799669] [2019-10-13 23:08:52,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:52,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:52,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:53,575 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:08:53,575 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90799669] [2019-10-13 23:08:53,576 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:53,576 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-10-13 23:08:53,576 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112581019] [2019-10-13 23:08:53,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-13 23:08:53,577 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:53,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-13 23:08:53,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=849, Unknown=0, NotChecked=0, Total=930 [2019-10-13 23:08:53,578 INFO L87 Difference]: Start difference. First operand 681 states and 847 transitions. Second operand 31 states. [2019-10-13 23:09:05,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:05,828 INFO L93 Difference]: Finished difference Result 1693 states and 2128 transitions. [2019-10-13 23:09:05,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-13 23:09:05,829 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 185 [2019-10-13 23:09:05,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:05,839 INFO L225 Difference]: With dead ends: 1693 [2019-10-13 23:09:05,839 INFO L226 Difference]: Without dead ends: 1251 [2019-10-13 23:09:05,842 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=295, Invalid=3487, Unknown=0, NotChecked=0, Total=3782 [2019-10-13 23:09:05,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2019-10-13 23:09:05,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1231. [2019-10-13 23:09:05,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2019-10-13 23:09:05,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1552 transitions. [2019-10-13 23:09:05,913 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1552 transitions. Word has length 185 [2019-10-13 23:09:05,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:05,916 INFO L462 AbstractCegarLoop]: Abstraction has 1231 states and 1552 transitions. [2019-10-13 23:09:05,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-13 23:09:05,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1552 transitions. [2019-10-13 23:09:05,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 23:09:05,921 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:05,921 INFO L380 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:05,921 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:05,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:05,922 INFO L82 PathProgramCache]: Analyzing trace with hash 88231048, now seen corresponding path program 1 times [2019-10-13 23:09:05,922 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:05,922 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842654090] [2019-10-13 23:09:05,922 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:05,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:05,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:06,605 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 23:09:06,606 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842654090] [2019-10-13 23:09:06,606 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:06,606 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2019-10-13 23:09:06,606 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596846603] [2019-10-13 23:09:06,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-13 23:09:06,607 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:06,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-13 23:09:06,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2019-10-13 23:09:06,608 INFO L87 Difference]: Start difference. First operand 1231 states and 1552 transitions. Second operand 27 states.