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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:53:16,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:53:16,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:53:16,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:53:16,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:53:16,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:53:16,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:53:16,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:53:16,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:53:16,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:53:16,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:53:16,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:53:16,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:53:16,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:53:16,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:53:16,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:53:16,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:53:16,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:53:16,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:53:16,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:53:16,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:53:16,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:53:16,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:53:16,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:53:16,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:53:16,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:53:16,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:53:16,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:53:16,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:53:16,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:53:16,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:53:16,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:53:16,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:53:16,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:53:16,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:53:16,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:53:16,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:53:16,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:53:16,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:53:16,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:53:16,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:53:16,104 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:53:16,118 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:53:16,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:53:16,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:53:16,119 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:53:16,120 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:53:16,120 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:53:16,120 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:53:16,121 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:53:16,121 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:53:16,121 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:53:16,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:53:16,122 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:53:16,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:53:16,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:53:16,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:53:16,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:53:16,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:53:16,123 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:53:16,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:53:16,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:53:16,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:53:16,124 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:53:16,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:53:16,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:53:16,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:53:16,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:53:16,125 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:53:16,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:53:16,125 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:53:16,126 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:53:16,154 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:53:16,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:53:16,176 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:53:16,178 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:53:16,178 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:53:16,180 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product30.cil.c [2019-10-03 02:53:16,261 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c31cf9f1/a513a0d0c81541df90643de6121a6414/FLAG03acf4dfd [2019-10-03 02:53:16,906 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:53:16,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product30.cil.c [2019-10-03 02:53:16,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c31cf9f1/a513a0d0c81541df90643de6121a6414/FLAG03acf4dfd [2019-10-03 02:53:17,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c31cf9f1/a513a0d0c81541df90643de6121a6414 [2019-10-03 02:53:17,119 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:53:17,120 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:53:17,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:53:17,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:53:17,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:53:17,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:53:17" (1/1) ... [2019-10-03 02:53:17,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5611840f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:17, skipping insertion in model container [2019-10-03 02:53:17,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:53:17" (1/1) ... [2019-10-03 02:53:17,138 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:53:17,225 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:53:18,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:53:18,082 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:53:18,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:53:18,276 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:53:18,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:18 WrapperNode [2019-10-03 02:53:18,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:53:18,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:53:18,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:53:18,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:53:18,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:18" (1/1) ... [2019-10-03 02:53:18,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:18" (1/1) ... [2019-10-03 02:53:18,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:18" (1/1) ... [2019-10-03 02:53:18,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:18" (1/1) ... [2019-10-03 02:53:18,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:18" (1/1) ... [2019-10-03 02:53:18,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:18" (1/1) ... [2019-10-03 02:53:18,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:18" (1/1) ... [2019-10-03 02:53:18,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:53:18,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:53:18,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:53:18,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:53:18,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:18" (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 [2019-10-03 02:53:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:53:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:53:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:53:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:53:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:53:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:53:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:53:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-03 02:53:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-03 02:53:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-03 02:53:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-03 02:53:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-03 02:53:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-03 02:53:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-03 02:53:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-03 02:53:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-03 02:53:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-03 02:53:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-03 02:53:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-03 02:53:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-03 02:53:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-03 02:53:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-03 02:53:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-03 02:53:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-03 02:53:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-03 02:53:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-03 02:53:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-03 02:53:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-03 02:53:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-03 02:53:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-03 02:53:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-03 02:53:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-03 02:53:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-03 02:53:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-03 02:53:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-03 02:53:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-03 02:53:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-03 02:53:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-03 02:53:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-03 02:53:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-03 02:53:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-03 02:53:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-03 02:53:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-03 02:53:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-03 02:53:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-03 02:53:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-03 02:53:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-03 02:53:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-03 02:53:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-03 02:53:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-03 02:53:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-03 02:53:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-03 02:53:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-03 02:53:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-03 02:53:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-03 02:53:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-03 02:53:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-03 02:53:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-03 02:53:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-03 02:53:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-03 02:53:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-03 02:53:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-03 02:53:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-03 02:53:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-03 02:53:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-03 02:53:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-03 02:53:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-03 02:53:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-03 02:53:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-03 02:53:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-03 02:53:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-03 02:53:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-03 02:53:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-03 02:53:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-03 02:53:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-03 02:53:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-03 02:53:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-03 02:53:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-03 02:53:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-03 02:53:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-03 02:53:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-03 02:53:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-03 02:53:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-03 02:53:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-03 02:53:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-03 02:53:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-03 02:53:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-03 02:53:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-03 02:53:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-03 02:53:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-03 02:53:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-03 02:53:18,558 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-03 02:53:18,558 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-03 02:53:18,558 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-03 02:53:18,558 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:53:18,558 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:53:18,558 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-03 02:53:18,559 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-03 02:53:18,559 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-03 02:53:18,559 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-03 02:53:18,559 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-03 02:53:18,559 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-03 02:53:18,559 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-03 02:53:18,559 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-03 02:53:18,560 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-03 02:53:18,560 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-03 02:53:18,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:53:18,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:53:18,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:53:18,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:53:18,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:53:18,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:53:18,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-03 02:53:18,561 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:53:18,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:53:18,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:53:18,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:53:18,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:53:18,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:53:18,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:53:18,562 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:53:18,562 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:53:18,562 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-03 02:53:18,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:53:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-03 02:53:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-03 02:53:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-03 02:53:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-03 02:53:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-03 02:53:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-03 02:53:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-03 02:53:18,564 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-03 02:53:18,564 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-03 02:53:18,564 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-03 02:53:18,564 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-03 02:53:18,564 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-03 02:53:18,564 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-03 02:53:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-03 02:53:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-03 02:53:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-03 02:53:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-03 02:53:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-03 02:53:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-03 02:53:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-03 02:53:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-03 02:53:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-03 02:53:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-03 02:53:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-03 02:53:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-03 02:53:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-03 02:53:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-03 02:53:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-03 02:53:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-03 02:53:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-03 02:53:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-03 02:53:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-03 02:53:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-03 02:53:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-03 02:53:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-03 02:53:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-03 02:53:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-03 02:53:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-03 02:53:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-03 02:53:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-03 02:53:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-03 02:53:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-03 02:53:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-03 02:53:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-03 02:53:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-03 02:53:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-03 02:53:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-03 02:53:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-03 02:53:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-03 02:53:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-03 02:53:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-03 02:53:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-03 02:53:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-03 02:53:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-03 02:53:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-03 02:53:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-03 02:53:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-03 02:53:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-03 02:53:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-03 02:53:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-03 02:53:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-03 02:53:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-03 02:53:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-03 02:53:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-03 02:53:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-03 02:53:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-03 02:53:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-03 02:53:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-03 02:53:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-03 02:53:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-03 02:53:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-03 02:53:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-03 02:53:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-03 02:53:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-03 02:53:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-03 02:53:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-03 02:53:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-03 02:53:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-03 02:53:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-03 02:53:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-03 02:53:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-03 02:53:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-03 02:53:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-03 02:53:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-03 02:53:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-03 02:53:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:53:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:53:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:53:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-03 02:53:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-03 02:53:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-03 02:53:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-03 02:53:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-03 02:53:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-03 02:53:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-03 02:53:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-03 02:53:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-03 02:53:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-03 02:53:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-03 02:53:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-03 02:53:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-03 02:53:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:53:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:53:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:53:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:53:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:53:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:53:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:53:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:53:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:53:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:53:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:53:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:53:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:53:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:53:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:53:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:53:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:53:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:53:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:53:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:53:20,752 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:53:20,753 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 02:53:20,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:53:20 BoogieIcfgContainer [2019-10-03 02:53:20,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:53:20,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:53:20,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:53:20,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:53:20,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:53:17" (1/3) ... [2019-10-03 02:53:20,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bbdd894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:53:20, skipping insertion in model container [2019-10-03 02:53:20,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:18" (2/3) ... [2019-10-03 02:53:20,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bbdd894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:53:20, skipping insertion in model container [2019-10-03 02:53:20,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:53:20" (3/3) ... [2019-10-03 02:53:20,765 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product30.cil.c [2019-10-03 02:53:20,777 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:53:20,787 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:53:20,806 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:53:20,838 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:53:20,838 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:53:20,838 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:53:20,838 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:53:20,838 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:53:20,839 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:53:20,839 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:53:20,839 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:53:20,870 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states. [2019-10-03 02:53:20,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-03 02:53:20,900 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:20,901 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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] [2019-10-03 02:53:20,903 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:20,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:20,910 INFO L82 PathProgramCache]: Analyzing trace with hash -400048036, now seen corresponding path program 1 times [2019-10-03 02:53:20,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:20,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:20,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:20,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:20,979 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:21,612 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:21,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:21,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:53:21,615 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:21,623 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:53:21,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:53:21,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:21,644 INFO L87 Difference]: Start difference. First operand 544 states. Second operand 2 states. [2019-10-03 02:53:21,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:21,736 INFO L93 Difference]: Finished difference Result 502 states and 666 transitions. [2019-10-03 02:53:21,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:53:21,738 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 164 [2019-10-03 02:53:21,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:21,774 INFO L225 Difference]: With dead ends: 502 [2019-10-03 02:53:21,775 INFO L226 Difference]: Without dead ends: 493 [2019-10-03 02:53:21,778 INFO L640 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 [2019-10-03 02:53:21,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2019-10-03 02:53:21,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2019-10-03 02:53:21,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2019-10-03 02:53:21,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 655 transitions. [2019-10-03 02:53:21,909 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 655 transitions. Word has length 164 [2019-10-03 02:53:21,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:21,912 INFO L475 AbstractCegarLoop]: Abstraction has 493 states and 655 transitions. [2019-10-03 02:53:21,912 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:53:21,912 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 655 transitions. [2019-10-03 02:53:21,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-03 02:53:21,920 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:21,920 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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] [2019-10-03 02:53:21,921 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:21,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:21,922 INFO L82 PathProgramCache]: Analyzing trace with hash -714771440, now seen corresponding path program 1 times [2019-10-03 02:53:21,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:21,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:21,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:21,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:21,928 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:22,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:22,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:22,153 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:22,160 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:22,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:22,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:22,162 INFO L87 Difference]: Start difference. First operand 493 states and 655 transitions. Second operand 3 states. [2019-10-03 02:53:22,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:22,211 INFO L93 Difference]: Finished difference Result 496 states and 658 transitions. [2019-10-03 02:53:22,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:22,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-03 02:53:22,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:22,215 INFO L225 Difference]: With dead ends: 496 [2019-10-03 02:53:22,216 INFO L226 Difference]: Without dead ends: 496 [2019-10-03 02:53:22,217 INFO L640 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 [2019-10-03 02:53:22,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2019-10-03 02:53:22,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 495. [2019-10-03 02:53:22,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2019-10-03 02:53:22,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 657 transitions. [2019-10-03 02:53:22,237 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 657 transitions. Word has length 165 [2019-10-03 02:53:22,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:22,238 INFO L475 AbstractCegarLoop]: Abstraction has 495 states and 657 transitions. [2019-10-03 02:53:22,238 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:22,239 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 657 transitions. [2019-10-03 02:53:22,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-03 02:53:22,242 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:22,242 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 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] [2019-10-03 02:53:22,242 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:22,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:22,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1858618400, now seen corresponding path program 1 times [2019-10-03 02:53:22,243 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:22,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:22,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:22,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:22,248 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:22,454 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:22,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:22,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:22,455 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:22,456 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:22,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:22,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:22,456 INFO L87 Difference]: Start difference. First operand 495 states and 657 transitions. Second operand 3 states. [2019-10-03 02:53:22,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:22,484 INFO L93 Difference]: Finished difference Result 536 states and 727 transitions. [2019-10-03 02:53:22,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:22,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2019-10-03 02:53:22,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:22,489 INFO L225 Difference]: With dead ends: 536 [2019-10-03 02:53:22,489 INFO L226 Difference]: Without dead ends: 536 [2019-10-03 02:53:22,489 INFO L640 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 [2019-10-03 02:53:22,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-10-03 02:53:22,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 535. [2019-10-03 02:53:22,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2019-10-03 02:53:22,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 726 transitions. [2019-10-03 02:53:22,509 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 726 transitions. Word has length 175 [2019-10-03 02:53:22,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:22,509 INFO L475 AbstractCegarLoop]: Abstraction has 535 states and 726 transitions. [2019-10-03 02:53:22,509 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:22,510 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 726 transitions. [2019-10-03 02:53:22,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-03 02:53:22,513 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:22,514 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 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] [2019-10-03 02:53:22,514 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:22,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:22,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1912264946, now seen corresponding path program 1 times [2019-10-03 02:53:22,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:22,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:22,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:22,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:22,520 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:22,672 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:22,672 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:22,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:22,675 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:22,677 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:22,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:22,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:22,680 INFO L87 Difference]: Start difference. First operand 535 states and 726 transitions. Second operand 3 states. [2019-10-03 02:53:22,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:22,716 INFO L93 Difference]: Finished difference Result 613 states and 859 transitions. [2019-10-03 02:53:22,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:22,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2019-10-03 02:53:22,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:22,727 INFO L225 Difference]: With dead ends: 613 [2019-10-03 02:53:22,727 INFO L226 Difference]: Without dead ends: 613 [2019-10-03 02:53:22,728 INFO L640 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 [2019-10-03 02:53:22,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2019-10-03 02:53:22,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 612. [2019-10-03 02:53:22,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2019-10-03 02:53:22,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 858 transitions. [2019-10-03 02:53:22,771 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 858 transitions. Word has length 176 [2019-10-03 02:53:22,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:22,772 INFO L475 AbstractCegarLoop]: Abstraction has 612 states and 858 transitions. [2019-10-03 02:53:22,772 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:22,772 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 858 transitions. [2019-10-03 02:53:22,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-03 02:53:22,782 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:22,782 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 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] [2019-10-03 02:53:22,783 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:22,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:22,783 INFO L82 PathProgramCache]: Analyzing trace with hash -440539328, now seen corresponding path program 1 times [2019-10-03 02:53:22,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:22,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:22,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:22,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:22,791 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:23,104 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:23,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:23,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:23,105 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:23,105 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:23,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:23,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:23,106 INFO L87 Difference]: Start difference. First operand 612 states and 858 transitions. Second operand 3 states. [2019-10-03 02:53:23,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:23,147 INFO L93 Difference]: Finished difference Result 761 states and 1111 transitions. [2019-10-03 02:53:23,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:23,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-03 02:53:23,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:23,156 INFO L225 Difference]: With dead ends: 761 [2019-10-03 02:53:23,156 INFO L226 Difference]: Without dead ends: 761 [2019-10-03 02:53:23,157 INFO L640 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 [2019-10-03 02:53:23,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2019-10-03 02:53:23,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 760. [2019-10-03 02:53:23,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 760 states. [2019-10-03 02:53:23,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1110 transitions. [2019-10-03 02:53:23,203 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1110 transitions. Word has length 177 [2019-10-03 02:53:23,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:23,204 INFO L475 AbstractCegarLoop]: Abstraction has 760 states and 1110 transitions. [2019-10-03 02:53:23,204 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:23,206 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1110 transitions. [2019-10-03 02:53:23,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-03 02:53:23,213 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:23,214 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 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] [2019-10-03 02:53:23,214 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:23,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:23,215 INFO L82 PathProgramCache]: Analyzing trace with hash 256193454, now seen corresponding path program 1 times [2019-10-03 02:53:23,215 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:23,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:23,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:23,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:23,225 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:23,503 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:23,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:23,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:23,504 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:23,505 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:23,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:23,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:23,505 INFO L87 Difference]: Start difference. First operand 760 states and 1110 transitions. Second operand 3 states. [2019-10-03 02:53:23,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:23,525 INFO L93 Difference]: Finished difference Result 1045 states and 1591 transitions. [2019-10-03 02:53:23,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:23,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-03 02:53:23,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:23,533 INFO L225 Difference]: With dead ends: 1045 [2019-10-03 02:53:23,533 INFO L226 Difference]: Without dead ends: 1045 [2019-10-03 02:53:23,534 INFO L640 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 [2019-10-03 02:53:23,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-10-03 02:53:23,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1044. [2019-10-03 02:53:23,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2019-10-03 02:53:23,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1590 transitions. [2019-10-03 02:53:23,572 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1590 transitions. Word has length 178 [2019-10-03 02:53:23,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:23,573 INFO L475 AbstractCegarLoop]: Abstraction has 1044 states and 1590 transitions. [2019-10-03 02:53:23,574 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:23,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1590 transitions. [2019-10-03 02:53:23,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-03 02:53:23,580 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:23,580 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 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] [2019-10-03 02:53:23,580 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:23,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:23,581 INFO L82 PathProgramCache]: Analyzing trace with hash 177792546, now seen corresponding path program 1 times [2019-10-03 02:53:23,581 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:23,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:23,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:23,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:23,586 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:23,845 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:23,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:23,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:53:23,845 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:23,846 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:53:23,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:53:23,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:53:23,848 INFO L87 Difference]: Start difference. First operand 1044 states and 1590 transitions. Second operand 7 states. [2019-10-03 02:53:27,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:27,175 INFO L93 Difference]: Finished difference Result 1310 states and 1929 transitions. [2019-10-03 02:53:27,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:53:27,175 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2019-10-03 02:53:27,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:27,189 INFO L225 Difference]: With dead ends: 1310 [2019-10-03 02:53:27,190 INFO L226 Difference]: Without dead ends: 1308 [2019-10-03 02:53:27,190 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:53:27,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2019-10-03 02:53:27,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1299. [2019-10-03 02:53:27,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1299 states. [2019-10-03 02:53:27,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1918 transitions. [2019-10-03 02:53:27,241 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1918 transitions. Word has length 181 [2019-10-03 02:53:27,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:27,242 INFO L475 AbstractCegarLoop]: Abstraction has 1299 states and 1918 transitions. [2019-10-03 02:53:27,242 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:53:27,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1918 transitions. [2019-10-03 02:53:27,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-03 02:53:27,254 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:27,254 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 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] [2019-10-03 02:53:27,256 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:27,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:27,257 INFO L82 PathProgramCache]: Analyzing trace with hash 2019935353, now seen corresponding path program 1 times [2019-10-03 02:53:27,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:27,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:27,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:27,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:27,264 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:27,654 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:27,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:27,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-03 02:53:27,655 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:27,656 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-03 02:53:27,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-03 02:53:27,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-03 02:53:27,658 INFO L87 Difference]: Start difference. First operand 1299 states and 1918 transitions. Second operand 18 states. [2019-10-03 02:53:28,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:28,064 INFO L93 Difference]: Finished difference Result 1379 states and 2023 transitions. [2019-10-03 02:53:28,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-03 02:53:28,064 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 182 [2019-10-03 02:53:28,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:28,074 INFO L225 Difference]: With dead ends: 1379 [2019-10-03 02:53:28,074 INFO L226 Difference]: Without dead ends: 1349 [2019-10-03 02:53:28,075 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-03 02:53:28,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2019-10-03 02:53:28,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1345. [2019-10-03 02:53:28,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1345 states. [2019-10-03 02:53:28,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1981 transitions. [2019-10-03 02:53:28,124 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1981 transitions. Word has length 182 [2019-10-03 02:53:28,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:28,125 INFO L475 AbstractCegarLoop]: Abstraction has 1345 states and 1981 transitions. [2019-10-03 02:53:28,125 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-03 02:53:28,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1981 transitions. [2019-10-03 02:53:28,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-03 02:53:28,132 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:28,132 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 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] [2019-10-03 02:53:28,132 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:28,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:28,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1115271463, now seen corresponding path program 1 times [2019-10-03 02:53:28,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:28,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:28,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:28,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:28,137 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:28,381 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:28,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:28,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:53:28,382 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:28,382 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:53:28,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:53:28,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:53:28,383 INFO L87 Difference]: Start difference. First operand 1345 states and 1981 transitions. Second operand 8 states. [2019-10-03 02:53:29,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:29,158 INFO L93 Difference]: Finished difference Result 1931 states and 2749 transitions. [2019-10-03 02:53:29,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-03 02:53:29,159 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2019-10-03 02:53:29,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:29,171 INFO L225 Difference]: With dead ends: 1931 [2019-10-03 02:53:29,171 INFO L226 Difference]: Without dead ends: 1929 [2019-10-03 02:53:29,171 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:53:29,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2019-10-03 02:53:29,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1916. [2019-10-03 02:53:29,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1916 states. [2019-10-03 02:53:29,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 2733 transitions. [2019-10-03 02:53:29,243 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 2733 transitions. Word has length 191 [2019-10-03 02:53:29,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:29,244 INFO L475 AbstractCegarLoop]: Abstraction has 1916 states and 2733 transitions. [2019-10-03 02:53:29,244 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:53:29,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 2733 transitions. [2019-10-03 02:53:29,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-03 02:53:29,250 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:29,251 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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] [2019-10-03 02:53:29,251 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:29,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:29,251 INFO L82 PathProgramCache]: Analyzing trace with hash 839491174, now seen corresponding path program 1 times [2019-10-03 02:53:29,251 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:29,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:29,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:29,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:29,255 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:29,581 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:29,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:29,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-03 02:53:29,582 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:29,582 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-03 02:53:29,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-03 02:53:29,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2019-10-03 02:53:29,583 INFO L87 Difference]: Start difference. First operand 1916 states and 2733 transitions. Second operand 17 states. [2019-10-03 02:53:30,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:30,300 INFO L93 Difference]: Finished difference Result 1915 states and 2729 transitions. [2019-10-03 02:53:30,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-03 02:53:30,301 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 192 [2019-10-03 02:53:30,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:30,313 INFO L225 Difference]: With dead ends: 1915 [2019-10-03 02:53:30,313 INFO L226 Difference]: Without dead ends: 1915 [2019-10-03 02:53:30,314 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2019-10-03 02:53:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2019-10-03 02:53:30,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1914. [2019-10-03 02:53:30,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2019-10-03 02:53:30,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2728 transitions. [2019-10-03 02:53:30,390 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2728 transitions. Word has length 192 [2019-10-03 02:53:30,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:30,393 INFO L475 AbstractCegarLoop]: Abstraction has 1914 states and 2728 transitions. [2019-10-03 02:53:30,393 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-03 02:53:30,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2728 transitions. [2019-10-03 02:53:30,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-03 02:53:30,400 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:30,400 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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] [2019-10-03 02:53:30,401 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:30,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:30,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1058572502, now seen corresponding path program 2 times [2019-10-03 02:53:30,401 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:30,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:30,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:30,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:30,408 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:30,726 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:30,726 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:30,727 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:53:30,727 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-10-03 02:53:30,729 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-10-03 02:53:30,729 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:30,729 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-03 02:53:30,858 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-03 02:53:30,859 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-10-03 02:53:31,179 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-03 02:53:31,179 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-03 02:53:31,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 2032 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-03 02:53:31,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-03 02:53:31,446 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-03 02:53:31,446 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-03 02:53:32,005 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-10-03 02:53:32,018 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:53:32,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-10-03 02:53:32,018 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:32,019 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:53:32,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:53:32,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-10-03 02:53:32,020 INFO L87 Difference]: Start difference. First operand 1914 states and 2728 transitions. Second operand 8 states. [2019-10-03 02:53:33,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:33,103 INFO L93 Difference]: Finished difference Result 3786 states and 5454 transitions. [2019-10-03 02:53:33,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-03 02:53:33,103 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 192 [2019-10-03 02:53:33,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:33,135 INFO L225 Difference]: With dead ends: 3786 [2019-10-03 02:53:33,135 INFO L226 Difference]: Without dead ends: 3784 [2019-10-03 02:53:33,136 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 373 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2019-10-03 02:53:33,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2019-10-03 02:53:33,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 3775. [2019-10-03 02:53:33,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3775 states. [2019-10-03 02:53:33,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3775 states to 3775 states and 5443 transitions. [2019-10-03 02:53:33,271 INFO L78 Accepts]: Start accepts. Automaton has 3775 states and 5443 transitions. Word has length 192 [2019-10-03 02:53:33,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:33,271 INFO L475 AbstractCegarLoop]: Abstraction has 3775 states and 5443 transitions. [2019-10-03 02:53:33,271 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:53:33,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3775 states and 5443 transitions. [2019-10-03 02:53:33,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-03 02:53:33,283 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:33,283 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 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] [2019-10-03 02:53:33,283 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:33,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:33,284 INFO L82 PathProgramCache]: Analyzing trace with hash -592340244, now seen corresponding path program 1 times [2019-10-03 02:53:33,284 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:33,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:33,288 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-03 02:53:33,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:33,288 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:33,685 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:33,686 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:33,686 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:53:33,687 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2019-10-03 02:53:33,690 INFO L207 CegarAbsIntRunner]: [59], [62], [63], [66], [72], [73], [76], [85], [117], [146], [149], [150], [151], [153], [263], [265], [269], [272], [273], [274], [277], [283], [319], [321], [323], [330], [337], [340], [349], [370], [372], [373], [376], [386], [460], [649], [651], [652], [653], [689], [692], [706], [735], [736], [737], [740], [746], [747], [764], [766], [770], [773], [797], [801], [804], [812], [815], [879], [888], [892], [894], [896], [899], [906], [913], [916], [918], [1052], [1055], [1069], [1126], [1128], [1131], [1133], [1136], [1196], [1250], [1272], [1283], [1286], [1287], [1290], [1293], [1324], [1325], [1327], [1440], [1443], [1445], [1448], [1457], [1463], [1466], [1475], [1491], [1494], [1503], [1664], [1666], [1668], [1670], [1671], [1699], [1709], [1710], [1711], [1712], [1713], [1714], [1717], [1718], [1719], [1720], [1721], [1723], [1724], [1725], [1726], [1739], [1740], [1741], [1742], [1747], [1759], [1760], [1785], [1786], [1807], [1808], [1821], [1827], [1828], [1829], [1830], [1831], [1832], [1833], [1834], [1835], [1836], [1837], [1838], [1839], [1840], [1841], [1843], [1844], [1845], [1846], [1879], [1880], [1895], [1897], [1898], [1899], [1900], [1901], [1903], [1904], [1905], [1907], [1908], [1909], [1910], [1911], [1912], [1913], [1925], [1926], [1927], [1928], [1929], [1930], [1931], [1932], [1933] [2019-10-03 02:53:33,749 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:53:33,749 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:53:33,982 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:53:33,984 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 200 root evaluator evaluations with a maximum evaluation depth of 0. Performed 200 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 372 variables. [2019-10-03 02:53:33,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:33,991 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:53:34,128 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:53:34,128 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:53:34,139 INFO L420 sIntCurrentIteration]: We unified 192 AI predicates to 192 [2019-10-03 02:53:34,139 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:53:34,141 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:53:34,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:53:34,141 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:34,142 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:53:34,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:53:34,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:34,143 INFO L87 Difference]: Start difference. First operand 3775 states and 5443 transitions. Second operand 2 states. [2019-10-03 02:53:34,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:34,144 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:53:34,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:53:34,145 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 193 [2019-10-03 02:53:34,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:34,145 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:53:34,146 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:53:34,146 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:34,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:53:34,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:53:34,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:53:34,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:53:34,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 193 [2019-10-03 02:53:34,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:34,148 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:53:34,148 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:53:34,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:53:34,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:53:34,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:53:34 BoogieIcfgContainer [2019-10-03 02:53:34,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:53:34,161 INFO L168 Benchmark]: Toolchain (without parser) took 17038.91 ms. Allocated memory was 133.2 MB in the beginning and 593.5 MB in the end (delta: 460.3 MB). Free memory was 84.8 MB in the beginning and 212.1 MB in the end (delta: -127.3 MB). Peak memory consumption was 333.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:34,163 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:53:34,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1156.22 ms. Allocated memory was 133.2 MB in the beginning and 201.9 MB in the end (delta: 68.7 MB). Free memory was 84.6 MB in the beginning and 131.3 MB in the end (delta: -46.6 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:34,167 INFO L168 Benchmark]: Boogie Preprocessor took 196.94 ms. Allocated memory is still 201.9 MB. Free memory was 131.3 MB in the beginning and 122.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:34,173 INFO L168 Benchmark]: RCFGBuilder took 2279.84 ms. Allocated memory was 201.9 MB in the beginning and 264.8 MB in the end (delta: 62.9 MB). Free memory was 122.1 MB in the beginning and 153.9 MB in the end (delta: -31.8 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:34,175 INFO L168 Benchmark]: TraceAbstraction took 13401.24 ms. Allocated memory was 264.8 MB in the beginning and 593.5 MB in the end (delta: 328.7 MB). Free memory was 153.9 MB in the beginning and 212.1 MB in the end (delta: -58.2 MB). Peak memory consumption was 270.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:34,190 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1156.22 ms. Allocated memory was 133.2 MB in the beginning and 201.9 MB in the end (delta: 68.7 MB). Free memory was 84.6 MB in the beginning and 131.3 MB in the end (delta: -46.6 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 196.94 ms. Allocated memory is still 201.9 MB. Free memory was 131.3 MB in the beginning and 122.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2279.84 ms. Allocated memory was 201.9 MB in the beginning and 264.8 MB in the end (delta: 62.9 MB). Free memory was 122.1 MB in the beginning and 153.9 MB in the end (delta: -31.8 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13401.24 ms. Allocated memory was 264.8 MB in the beginning and 593.5 MB in the end (delta: 328.7 MB). Free memory was 153.9 MB in the beginning and 212.1 MB in the end (delta: -58.2 MB). Peak memory consumption was 270.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2997]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 115 procedures, 793 locations, 1 error locations. SAFE Result, 13.3s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 6.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7518 SDtfs, 2680 SDslu, 31147 SDs, 0 SdLazy, 4208 SolverSat, 492 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 702 GetRequests, 594 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3775occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.1302083333333335 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 41 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 2358 NumberOfCodeBlocks, 2242 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2536 ConstructedInterpolants, 0 QuantifiedInterpolants, 648455 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2032 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 466/472 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...