/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 -i ../../../trunk/examples/svcomp/product-lines/email_spec8_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:50:19,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:50:19,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:50:19,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:50:19,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:50:19,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:50:19,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:50:19,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:50:19,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:50:19,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:50:19,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:50:19,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:50:19,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:50:19,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:50:19,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:50:19,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:50:19,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:50:19,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:50:19,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:50:19,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:50:19,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:50:19,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:50:19,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:50:19,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:50:19,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:50:19,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:50:19,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:50:19,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:50:19,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:50:19,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:50:19,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:50:19,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:50:19,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:50:19,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:50:19,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:50:19,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:50:19,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:50:19,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:50:19,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:50:19,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:50:19,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:50:19,583 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 [2019-11-06 21:50:19,601 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:50:19,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:50:19,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:50:19,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:50:19,604 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:50:19,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:50:19,605 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:50:19,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:50:19,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:50:19,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:50:19,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:50:19,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:50:19,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:50:19,607 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:50:19,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:50:19,607 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:50:19,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:50:19,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:50:19,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:50:19,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:50:19,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:50:19,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:50:19,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:50:19,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:50:19,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:50:19,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:50:19,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:50:19,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:50:19,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:50:19,926 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:50:19,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:50:19,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:50:19,953 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:50:19,954 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:50:19,954 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product16.cil.c [2019-11-06 21:50:20,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8be8ea76/bb194422ec564aa3b74bff79b6f64aa2/FLAG7c0147ca3 [2019-11-06 21:50:20,665 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:50:20,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product16.cil.c [2019-11-06 21:50:20,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8be8ea76/bb194422ec564aa3b74bff79b6f64aa2/FLAG7c0147ca3 [2019-11-06 21:50:20,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8be8ea76/bb194422ec564aa3b74bff79b6f64aa2 [2019-11-06 21:50:20,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:50:20,867 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:50:20,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:50:20,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:50:20,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:50:20,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:50:20" (1/1) ... [2019-11-06 21:50:20,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198c92c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:50:20, skipping insertion in model container [2019-11-06 21:50:20,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:50:20" (1/1) ... [2019-11-06 21:50:20,886 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:50:20,967 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:50:21,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:50:21,732 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:50:21,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:50:22,000 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:50:22,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:50:22 WrapperNode [2019-11-06 21:50:22,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:50:22,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:50:22,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:50:22,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:50:22,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:50:22" (1/1) ... [2019-11-06 21:50:22,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:50:22" (1/1) ... [2019-11-06 21:50:22,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:50:22" (1/1) ... [2019-11-06 21:50:22,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:50:22" (1/1) ... [2019-11-06 21:50:22,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:50:22" (1/1) ... [2019-11-06 21:50:22,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:50:22" (1/1) ... [2019-11-06 21:50:22,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:50:22" (1/1) ... [2019-11-06 21:50:22,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:50:22,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:50:22,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:50:22,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:50:22,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:50:22" (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 [2019-11-06 21:50:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:50:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:50:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 21:50:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-06 21:50:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-06 21:50:22,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-06 21:50:22,399 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-06 21:50:22,399 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-06 21:50:22,399 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-06 21:50:22,400 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-06 21:50:22,400 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-06 21:50:22,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-06 21:50:22,401 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-06 21:50:22,402 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-06 21:50:22,403 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-06 21:50:22,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-06 21:50:22,406 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-06 21:50:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-06 21:50:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-06 21:50:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-06 21:50:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-06 21:50:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-06 21:50:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-06 21:50:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-06 21:50:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-06 21:50:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-06 21:50:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-06 21:50:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-06 21:50:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-06 21:50:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-06 21:50:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-06 21:50:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-06 21:50:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-06 21:50:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-06 21:50:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-06 21:50:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-06 21:50:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-06 21:50:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-06 21:50:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 21:50:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 21:50:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 21:50:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 21:50:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 21:50:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 21:50:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-06 21:50:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-06 21:50:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-06 21:50:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-06 21:50:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-06 21:50:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-06 21:50:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-06 21:50:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-06 21:50:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 21:50:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:50:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-06 21:50:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-06 21:50:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-06 21:50:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-06 21:50:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-06 21:50:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-06 21:50:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-06 21:50:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-06 21:50:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-06 21:50:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-06 21:50:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-06 21:50:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-06 21:50:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-06 21:50:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-06 21:50:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-06 21:50:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-06 21:50:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-06 21:50:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-06 21:50:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-06 21:50:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-06 21:50:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-06 21:50:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-06 21:50:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-06 21:50:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-06 21:50:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-06 21:50:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-06 21:50:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-06 21:50:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-06 21:50:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-06 21:50:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-06 21:50:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-06 21:50:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 21:50:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-11-06 21:50:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-11-06 21:50:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 21:50:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 21:50:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 21:50:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 21:50:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 21:50:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-06 21:50:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-06 21:50:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-06 21:50:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-06 21:50:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-06 21:50:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-06 21:50:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-06 21:50:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-06 21:50:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-06 21:50:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-06 21:50:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-06 21:50:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-06 21:50:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-06 21:50:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-06 21:50:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-06 21:50:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-06 21:50:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-06 21:50:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:50:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:50:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-06 21:50:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-06 21:50:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-06 21:50:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-06 21:50:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-06 21:50:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-06 21:50:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-06 21:50:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-06 21:50:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-06 21:50:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-06 21:50:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-06 21:50:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-06 21:50:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-06 21:50:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-06 21:50:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-06 21:50:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-06 21:50:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-06 21:50:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-06 21:50:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-06 21:50:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-06 21:50:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-06 21:50:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-06 21:50:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-06 21:50:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-06 21:50:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-06 21:50:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-06 21:50:22,444 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-06 21:50:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-06 21:50:22,449 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-06 21:50:22,450 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 21:50:22,450 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-06 21:50:22,451 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-06 21:50:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-06 21:50:22,460 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-06 21:50:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-06 21:50:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-06 21:50:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-06 21:50:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-06 21:50:22,461 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-06 21:50:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-06 21:50:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-06 21:50:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-06 21:50:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:50:22,462 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-06 21:50:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 21:50:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:50:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:50:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 21:50:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:50:22,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:50:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:50:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:50:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 21:50:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:50:22,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 21:50:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 21:50:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:50:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 21:50:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 21:50:22,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 21:50:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-06 21:50:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 21:50:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 21:50:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 21:50:22,466 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-06 21:50:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-06 21:50:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-06 21:50:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-06 21:50:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-06 21:50:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-06 21:50:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-06 21:50:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-06 21:50:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-06 21:50:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-06 21:50:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-06 21:50:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 21:50:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 21:50:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:50:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-06 21:50:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-06 21:50:22,469 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-06 21:50:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-06 21:50:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-06 21:50:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-06 21:50:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-06 21:50:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-06 21:50:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-06 21:50:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-06 21:50:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-06 21:50:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-06 21:50:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-06 21:50:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-06 21:50:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-06 21:50:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-06 21:50:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-06 21:50:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-06 21:50:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-06 21:50:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-06 21:50:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-06 21:50:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-06 21:50:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-06 21:50:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-06 21:50:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-06 21:50:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-06 21:50:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-06 21:50:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 21:50:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-11-06 21:50:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-11-06 21:50:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 21:50:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-06 21:50:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-06 21:50:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-06 21:50:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-06 21:50:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-06 21:50:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-06 21:50:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-06 21:50:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-06 21:50:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-06 21:50:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-06 21:50:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-06 21:50:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:50:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 21:50:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:50:24,697 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:50:24,697 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-06 21:50:24,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:50:24 BoogieIcfgContainer [2019-11-06 21:50:24,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:50:24,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:50:24,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:50:24,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:50:24,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:50:20" (1/3) ... [2019-11-06 21:50:24,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22286070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:50:24, skipping insertion in model container [2019-11-06 21:50:24,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:50:22" (2/3) ... [2019-11-06 21:50:24,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22286070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:50:24, skipping insertion in model container [2019-11-06 21:50:24,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:50:24" (3/3) ... [2019-11-06 21:50:24,708 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product16.cil.c [2019-11-06 21:50:24,717 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:50:24,728 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:50:24,739 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:50:24,776 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:50:24,776 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:50:24,777 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:50:24,777 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:50:24,777 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:50:24,777 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:50:24,777 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:50:24,777 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:50:24,814 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states. [2019-11-06 21:50:24,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-11-06 21:50:24,846 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:50:24,848 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:50:24,850 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:50:24,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:50:24,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1079816034, now seen corresponding path program 1 times [2019-11-06 21:50:24,865 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:50:24,869 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168634106] [2019-11-06 21:50:24,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:50:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,382 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification that was a NOOP. DAG size: 556 [2019-11-06 21:50:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:27,787 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-06 21:50:27,788 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168634106] [2019-11-06 21:50:27,790 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:50:27,791 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 21:50:27,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124889467] [2019-11-06 21:50:27,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 21:50:27,799 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:50:27,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 21:50:27,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:50:27,816 INFO L87 Difference]: Start difference. First operand 480 states. Second operand 10 states. [2019-11-06 21:50:39,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:50:39,341 INFO L93 Difference]: Finished difference Result 1037 states and 1506 transitions. [2019-11-06 21:50:39,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-06 21:50:39,343 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2019-11-06 21:50:39,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:50:39,368 INFO L225 Difference]: With dead ends: 1037 [2019-11-06 21:50:39,368 INFO L226 Difference]: Without dead ends: 724 [2019-11-06 21:50:39,375 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2019-11-06 21:50:39,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2019-11-06 21:50:39,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 457. [2019-11-06 21:50:39,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2019-11-06 21:50:39,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 605 transitions. [2019-11-06 21:50:39,625 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 605 transitions. Word has length 145 [2019-11-06 21:50:39,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:50:39,626 INFO L462 AbstractCegarLoop]: Abstraction has 457 states and 605 transitions. [2019-11-06 21:50:39,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 21:50:39,626 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 605 transitions. [2019-11-06 21:50:39,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-11-06 21:50:39,630 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:50:39,630 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:50:39,631 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:50:39,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:50:39,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1252139373, now seen corresponding path program 1 times [2019-11-06 21:50:39,631 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:50:39,632 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166682912] [2019-11-06 21:50:39,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:50:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,348 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 556 [2019-11-06 21:50:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:41,673 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-06 21:50:41,674 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166682912] [2019-11-06 21:50:41,674 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:50:41,674 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 21:50:41,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214828770] [2019-11-06 21:50:41,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 21:50:41,688 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:50:41,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 21:50:41,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-06 21:50:41,694 INFO L87 Difference]: Start difference. First operand 457 states and 605 transitions. Second operand 11 states. [2019-11-06 21:50:45,664 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 559 [2019-11-06 21:50:56,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:50:56,327 INFO L93 Difference]: Finished difference Result 952 states and 1340 transitions. [2019-11-06 21:50:56,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-06 21:50:56,330 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 146 [2019-11-06 21:50:56,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:50:56,336 INFO L225 Difference]: With dead ends: 952 [2019-11-06 21:50:56,337 INFO L226 Difference]: Without dead ends: 727 [2019-11-06 21:50:56,339 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2019-11-06 21:50:56,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2019-11-06 21:50:56,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 459. [2019-11-06 21:50:56,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2019-11-06 21:50:56,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 607 transitions. [2019-11-06 21:50:56,531 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 607 transitions. Word has length 146 [2019-11-06 21:50:56,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:50:56,532 INFO L462 AbstractCegarLoop]: Abstraction has 459 states and 607 transitions. [2019-11-06 21:50:56,532 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 21:50:56,532 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 607 transitions. [2019-11-06 21:50:56,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-11-06 21:50:56,534 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:50:56,535 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-11-06 21:50:56,535 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:50:56,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:50:56,535 INFO L82 PathProgramCache]: Analyzing trace with hash -88146113, now seen corresponding path program 1 times [2019-11-06 21:50:56,536 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:50:56,536 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552590761] [2019-11-06 21:50:56,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:50:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,171 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 556 [2019-11-06 21:50:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:50:58,467 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-06 21:50:58,468 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552590761] [2019-11-06 21:50:58,468 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:50:58,468 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 21:50:58,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445146016] [2019-11-06 21:50:58,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 21:50:58,471 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:50:58,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 21:50:58,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-06 21:50:58,472 INFO L87 Difference]: Start difference. First operand 459 states and 607 transitions. Second operand 11 states.