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_spec11_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:50:21,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:50:21,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:50:21,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:50:21,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:50:21,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:50:21,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:50:21,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:50:21,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:50:21,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:50:21,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:50:21,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:50:21,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:50:21,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:50:21,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:50:21,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:50:21,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:50:21,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:50:21,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:50:21,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:50:21,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:50:21,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:50:21,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:50:21,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:50:21,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:50:21,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:50:21,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:50:21,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:50:21,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:50:21,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:50:21,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:50:21,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:50:21,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:50:21,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:50:21,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:50:21,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:50:21,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:50:21,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:50:21,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:50:21,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:50:21,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:50:21,442 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 02:50:21,457 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:50:21,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:50:21,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:50:21,458 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:50:21,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:50:21,459 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:50:21,459 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:50:21,459 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:50:21,459 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:50:21,460 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:50:21,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:50:21,461 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:50:21,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:50:21,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:50:21,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:50:21,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:50:21,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:50:21,462 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:50:21,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:50:21,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:50:21,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:50:21,463 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:50:21,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:50:21,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:50:21,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:50:21,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:50:21,464 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:50:21,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:50:21,464 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:50:21,465 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:50:21,491 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:50:21,507 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:50:21,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:50:21,515 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:50:21,515 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:50:21,516 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product18.cil.c [2019-10-03 02:50:21,573 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c66a2b37/7f5413ba69b44f718af19c397bc6bd37/FLAG3a893293f [2019-10-03 02:50:22,191 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:50:22,191 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product18.cil.c [2019-10-03 02:50:22,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c66a2b37/7f5413ba69b44f718af19c397bc6bd37/FLAG3a893293f [2019-10-03 02:50:22,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c66a2b37/7f5413ba69b44f718af19c397bc6bd37 [2019-10-03 02:50:22,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:50:22,400 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:50:22,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:50:22,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:50:22,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:50:22,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:50:22" (1/1) ... [2019-10-03 02:50:22,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7201854e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:50:22, skipping insertion in model container [2019-10-03 02:50:22,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:50:22" (1/1) ... [2019-10-03 02:50:22,422 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:50:22,508 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:50:23,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:50:23,204 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:50:23,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:50:23,391 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:50:23,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:50:23 WrapperNode [2019-10-03 02:50:23,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:50:23,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:50:23,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:50:23,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:50:23,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:50:23" (1/1) ... [2019-10-03 02:50:23,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:50:23" (1/1) ... [2019-10-03 02:50:23,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:50:23" (1/1) ... [2019-10-03 02:50:23,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:50:23" (1/1) ... [2019-10-03 02:50:23,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:50:23" (1/1) ... [2019-10-03 02:50:23,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:50:23" (1/1) ... [2019-10-03 02:50:23,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:50:23" (1/1) ... [2019-10-03 02:50:23,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:50:23,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:50:23,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:50:23,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:50:23,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:50:23" (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 02:50:23,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:50:23,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:50:23,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:50:23,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-03 02:50:23,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-03 02:50:23,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-03 02:50:23,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-03 02:50:23,604 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-03 02:50:23,605 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-03 02:50:23,605 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:50:23,605 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-03 02:50:23,606 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:50:23,606 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:50:23,607 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:50:23,607 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:50:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-03 02:50:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-03 02:50:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-03 02:50:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-03 02:50:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-03 02:50:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-03 02:50:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-03 02:50:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-03 02:50:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-03 02:50:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-03 02:50:23,610 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-03 02:50:23,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-03 02:50:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-03 02:50:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-03 02:50:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-03 02:50:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-03 02:50:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-03 02:50:23,612 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-03 02:50:23,612 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-03 02:50:23,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-03 02:50:23,612 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-03 02:50:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-03 02:50:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-03 02:50:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-03 02:50:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-03 02:50:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-03 02:50:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-03 02:50:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-03 02:50:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-03 02:50:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-03 02:50:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-03 02:50:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-03 02:50:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-03 02:50:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-03 02:50:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-03 02:50:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-03 02:50:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-03 02:50:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-03 02:50:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-03 02:50:23,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-03 02:50:23,617 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-03 02:50:23,617 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-03 02:50:23,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-03 02:50:23,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-03 02:50:23,618 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-03 02:50:23,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-03 02:50:23,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-03 02:50:23,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-03 02:50:23,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-03 02:50:23,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-03 02:50:23,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:50:23,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:50:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:50:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:50:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:50:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:50:23,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-03 02:50:23,621 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-03 02:50:23,622 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-03 02:50:23,622 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-03 02:50:23,622 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-03 02:50:23,622 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-03 02:50:23,622 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-03 02:50:23,623 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-03 02:50:23,623 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-03 02:50:23,623 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-03 02:50:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-03 02:50:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-03 02:50:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-03 02:50:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-03 02:50:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-03 02:50:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-03 02:50:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-03 02:50:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-03 02:50:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:50:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-03 02:50:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-03 02:50:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-03 02:50:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-03 02:50:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-03 02:50:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-03 02:50:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-03 02:50:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-03 02:50:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-03 02:50:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:50:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:50:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-03 02:50:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-03 02:50:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-03 02:50:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-03 02:50:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-03 02:50:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-03 02:50:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-03 02:50:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-03 02:50:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-03 02:50:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-03 02:50:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:50:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:50:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:50:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-03 02:50:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-03 02:50:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-03 02:50:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-03 02:50:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-03 02:50:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-03 02:50:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-03 02:50:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-03 02:50:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-03 02:50:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-03 02:50:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-03 02:50:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-03 02:50:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-03 02:50:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:50:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-03 02:50:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-03 02:50:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-03 02:50:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-03 02:50:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-03 02:50:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-03 02:50:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-03 02:50:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-03 02:50:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-03 02:50:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-03 02:50:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:50:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-03 02:50:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:50:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:50:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:50:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:50:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-03 02:50:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-03 02:50:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-03 02:50:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-03 02:50:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-03 02:50:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-03 02:50:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-03 02:50:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-03 02:50:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-03 02:50:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-03 02:50:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-03 02:50:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-03 02:50:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-03 02:50:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-03 02:50:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-03 02:50:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-03 02:50:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-03 02:50:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-03 02:50:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-03 02:50:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-03 02:50:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-03 02:50:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-03 02:50:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-03 02:50:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-03 02:50:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-03 02:50:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-03 02:50:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-03 02:50:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-03 02:50:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-03 02:50:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-03 02:50:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-03 02:50:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-03 02:50:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-03 02:50:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-03 02:50:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-03 02:50:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-03 02:50:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-03 02:50:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-03 02:50:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-03 02:50:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-03 02:50:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-03 02:50:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-03 02:50:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:50:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:50:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:50:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:50:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:50:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:50:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:50:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:50:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:50:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:50:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:50:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:50:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:50:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:50:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:50:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:50:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-03 02:50:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-03 02:50:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-03 02:50:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-03 02:50:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-03 02:50:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-03 02:50:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-03 02:50:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-03 02:50:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-03 02:50:23,658 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-03 02:50:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-03 02:50:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-03 02:50:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-03 02:50:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-03 02:50:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-03 02:50:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-03 02:50:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-03 02:50:23,659 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-03 02:50:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-03 02:50:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-03 02:50:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:50:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-03 02:50:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-03 02:50:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-03 02:50:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-03 02:50:23,660 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:50:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:50:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-03 02:50:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-03 02:50:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-03 02:50:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-03 02:50:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-03 02:50:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:50:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:50:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:50:25,496 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:50:25,496 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 02:50:25,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:50:25 BoogieIcfgContainer [2019-10-03 02:50:25,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:50:25,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:50:25,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:50:25,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:50:25,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:50:22" (1/3) ... [2019-10-03 02:50:25,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc26af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:50:25, skipping insertion in model container [2019-10-03 02:50:25,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:50:23" (2/3) ... [2019-10-03 02:50:25,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc26af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:50:25, skipping insertion in model container [2019-10-03 02:50:25,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:50:25" (3/3) ... [2019-10-03 02:50:25,505 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product18.cil.c [2019-10-03 02:50:25,515 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:50:25,525 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:50:25,542 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:50:25,570 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:50:25,571 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:50:25,571 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:50:25,571 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:50:25,571 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:50:25,571 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:50:25,571 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:50:25,571 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:50:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states. [2019-10-03 02:50:25,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-03 02:50:25,653 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:50:25,655 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:50:25,659 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:50:25,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:50:25,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1318099310, now seen corresponding path program 1 times [2019-10-03 02:50:25,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:50:25,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:25,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:50:25,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:25,733 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:50:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:50:26,283 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:50:26,286 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:50:26,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:50:26,286 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:50:26,293 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:50:26,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:50:26,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:50:26,312 INFO L87 Difference]: Start difference. First operand 479 states. Second operand 2 states. [2019-10-03 02:50:26,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:50:26,362 INFO L93 Difference]: Finished difference Result 443 states and 585 transitions. [2019-10-03 02:50:26,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:50:26,364 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 177 [2019-10-03 02:50:26,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:50:26,385 INFO L225 Difference]: With dead ends: 443 [2019-10-03 02:50:26,385 INFO L226 Difference]: Without dead ends: 434 [2019-10-03 02:50:26,387 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 02:50:26,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-10-03 02:50:26,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2019-10-03 02:50:26,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2019-10-03 02:50:26,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 574 transitions. [2019-10-03 02:50:26,506 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 574 transitions. Word has length 177 [2019-10-03 02:50:26,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:50:26,508 INFO L475 AbstractCegarLoop]: Abstraction has 434 states and 574 transitions. [2019-10-03 02:50:26,508 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:50:26,508 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 574 transitions. [2019-10-03 02:50:26,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-03 02:50:26,514 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:50:26,514 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:50:26,515 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:50:26,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:50:26,515 INFO L82 PathProgramCache]: Analyzing trace with hash 88269489, now seen corresponding path program 1 times [2019-10-03 02:50:26,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:50:26,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:26,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:50:26,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:26,520 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:50:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:50:26,714 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:50:26,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:50:26,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:50:26,715 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:50:26,717 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:50:26,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:50:26,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:50:26,718 INFO L87 Difference]: Start difference. First operand 434 states and 574 transitions. Second operand 3 states. [2019-10-03 02:50:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:50:26,773 INFO L93 Difference]: Finished difference Result 437 states and 577 transitions. [2019-10-03 02:50:26,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:50:26,774 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-03 02:50:26,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:50:26,779 INFO L225 Difference]: With dead ends: 437 [2019-10-03 02:50:26,779 INFO L226 Difference]: Without dead ends: 437 [2019-10-03 02:50:26,780 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 02:50:26,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2019-10-03 02:50:26,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 436. [2019-10-03 02:50:26,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2019-10-03 02:50:26,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 576 transitions. [2019-10-03 02:50:26,818 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 576 transitions. Word has length 178 [2019-10-03 02:50:26,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:50:26,819 INFO L475 AbstractCegarLoop]: Abstraction has 436 states and 576 transitions. [2019-10-03 02:50:26,819 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:50:26,823 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 576 transitions. [2019-10-03 02:50:26,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-03 02:50:26,828 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:50:26,828 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] [2019-10-03 02:50:26,828 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:50:26,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:50:26,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1554857023, now seen corresponding path program 1 times [2019-10-03 02:50:26,829 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:50:26,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:26,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:50:26,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:26,836 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:50:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:50:27,016 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:50:27,017 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:50:27,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:50:27,018 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:50:27,019 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:50:27,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:50:27,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:50:27,021 INFO L87 Difference]: Start difference. First operand 436 states and 576 transitions. Second operand 3 states. [2019-10-03 02:50:27,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:50:27,088 INFO L93 Difference]: Finished difference Result 477 states and 646 transitions. [2019-10-03 02:50:27,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:50:27,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2019-10-03 02:50:27,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:50:27,094 INFO L225 Difference]: With dead ends: 477 [2019-10-03 02:50:27,094 INFO L226 Difference]: Without dead ends: 477 [2019-10-03 02:50:27,095 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 02:50:27,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2019-10-03 02:50:27,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 476. [2019-10-03 02:50:27,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2019-10-03 02:50:27,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 645 transitions. [2019-10-03 02:50:27,137 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 645 transitions. Word has length 188 [2019-10-03 02:50:27,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:50:27,140 INFO L475 AbstractCegarLoop]: Abstraction has 476 states and 645 transitions. [2019-10-03 02:50:27,140 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:50:27,140 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 645 transitions. [2019-10-03 02:50:27,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-03 02:50:27,148 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:50:27,149 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] [2019-10-03 02:50:27,149 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:50:27,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:50:27,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1282080610, now seen corresponding path program 1 times [2019-10-03 02:50:27,150 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:50:27,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:27,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:50:27,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:27,155 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:50:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:50:27,309 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:50:27,309 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:50:27,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:50:27,309 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:50:27,311 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:50:27,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:50:27,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:50:27,311 INFO L87 Difference]: Start difference. First operand 476 states and 645 transitions. Second operand 3 states. [2019-10-03 02:50:27,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:50:27,338 INFO L93 Difference]: Finished difference Result 554 states and 778 transitions. [2019-10-03 02:50:27,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:50:27,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-03 02:50:27,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:50:27,343 INFO L225 Difference]: With dead ends: 554 [2019-10-03 02:50:27,343 INFO L226 Difference]: Without dead ends: 554 [2019-10-03 02:50:27,344 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 02:50:27,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2019-10-03 02:50:27,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 553. [2019-10-03 02:50:27,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2019-10-03 02:50:27,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 777 transitions. [2019-10-03 02:50:27,365 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 777 transitions. Word has length 189 [2019-10-03 02:50:27,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:50:27,366 INFO L475 AbstractCegarLoop]: Abstraction has 553 states and 777 transitions. [2019-10-03 02:50:27,366 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:50:27,366 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 777 transitions. [2019-10-03 02:50:27,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-03 02:50:27,370 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:50:27,371 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] [2019-10-03 02:50:27,371 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:50:27,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:50:27,371 INFO L82 PathProgramCache]: Analyzing trace with hash 646430145, now seen corresponding path program 1 times [2019-10-03 02:50:27,372 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:50:27,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:27,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:50:27,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:27,376 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:50:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:50:27,517 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:50:27,518 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:50:27,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:50:27,518 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:50:27,519 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:50:27,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:50:27,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:50:27,520 INFO L87 Difference]: Start difference. First operand 553 states and 777 transitions. Second operand 3 states. [2019-10-03 02:50:27,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:50:27,540 INFO L93 Difference]: Finished difference Result 702 states and 1030 transitions. [2019-10-03 02:50:27,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:50:27,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-03 02:50:27,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:50:27,545 INFO L225 Difference]: With dead ends: 702 [2019-10-03 02:50:27,545 INFO L226 Difference]: Without dead ends: 702 [2019-10-03 02:50:27,546 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 02:50:27,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2019-10-03 02:50:27,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 701. [2019-10-03 02:50:27,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2019-10-03 02:50:27,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1029 transitions. [2019-10-03 02:50:27,571 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1029 transitions. Word has length 190 [2019-10-03 02:50:27,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:50:27,571 INFO L475 AbstractCegarLoop]: Abstraction has 701 states and 1029 transitions. [2019-10-03 02:50:27,571 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:50:27,571 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1029 transitions. [2019-10-03 02:50:27,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-03 02:50:27,577 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:50:27,577 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] [2019-10-03 02:50:27,577 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:50:27,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:50:27,578 INFO L82 PathProgramCache]: Analyzing trace with hash 782891678, now seen corresponding path program 1 times [2019-10-03 02:50:27,578 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:50:27,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:27,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:50:27,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:27,584 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:50:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:50:27,858 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:50:27,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:50:27,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:50:27,859 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:50:27,860 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:50:27,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:50:27,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:50:27,861 INFO L87 Difference]: Start difference. First operand 701 states and 1029 transitions. Second operand 3 states. [2019-10-03 02:50:27,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:50:27,889 INFO L93 Difference]: Finished difference Result 986 states and 1510 transitions. [2019-10-03 02:50:27,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:50:27,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2019-10-03 02:50:27,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:50:27,899 INFO L225 Difference]: With dead ends: 986 [2019-10-03 02:50:27,899 INFO L226 Difference]: Without dead ends: 986 [2019-10-03 02:50:27,900 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 02:50:27,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2019-10-03 02:50:27,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 985. [2019-10-03 02:50:27,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 985 states. [2019-10-03 02:50:27,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1509 transitions. [2019-10-03 02:50:27,946 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1509 transitions. Word has length 191 [2019-10-03 02:50:27,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:50:27,947 INFO L475 AbstractCegarLoop]: Abstraction has 985 states and 1509 transitions. [2019-10-03 02:50:27,947 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:50:27,947 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1509 transitions. [2019-10-03 02:50:27,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-03 02:50:27,957 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:50:27,957 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 02:50:27,958 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:50:27,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:50:27,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1010880449, now seen corresponding path program 1 times [2019-10-03 02:50:27,958 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:50:27,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:27,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:50:27,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:27,963 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:50:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:50:28,169 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:50:28,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:50:28,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:50:28,170 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:50:28,171 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:50:28,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:50:28,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:50:28,172 INFO L87 Difference]: Start difference. First operand 985 states and 1509 transitions. Second operand 3 states. [2019-10-03 02:50:28,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:50:28,210 INFO L93 Difference]: Finished difference Result 1530 states and 2422 transitions. [2019-10-03 02:50:28,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:50:28,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-03 02:50:28,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:50:28,229 INFO L225 Difference]: With dead ends: 1530 [2019-10-03 02:50:28,229 INFO L226 Difference]: Without dead ends: 1530 [2019-10-03 02:50:28,230 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 02:50:28,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2019-10-03 02:50:28,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1529. [2019-10-03 02:50:28,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1529 states. [2019-10-03 02:50:28,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 2421 transitions. [2019-10-03 02:50:28,306 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 2421 transitions. Word has length 192 [2019-10-03 02:50:28,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:50:28,306 INFO L475 AbstractCegarLoop]: Abstraction has 1529 states and 2421 transitions. [2019-10-03 02:50:28,307 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:50:28,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 2421 transitions. [2019-10-03 02:50:28,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-03 02:50:28,319 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:50:28,320 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, 1, 1] [2019-10-03 02:50:28,320 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:50:28,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:50:28,320 INFO L82 PathProgramCache]: Analyzing trace with hash 2021717218, now seen corresponding path program 1 times [2019-10-03 02:50:28,320 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:50:28,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:28,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:50:28,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:50:28,326 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:50:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:50:28,576 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:50:28,577 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:50:28,577 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:50:28,578 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 195 with the following transitions: [2019-10-03 02:50:28,580 INFO L207 CegarAbsIntRunner]: [72], [75], [85], [120], [149], [152], [153], [154], [156], [266], [269], [270], [271], [274], [280], [302], [305], [308], [314], [316], [320], [323], [332], [343], [344], [345], [347], [348], [351], [361], [362], [363], [374], [376], [381], [408], [410], [422], [444], [446], [631], [633], [634], [635], [671], [674], [688], [727], [728], [729], [731], [744], [746], [749], [753], [777], [781], [784], [792], [795], [796], [818], [824], [833], [837], [839], [841], [844], [851], [858], [861], [863], [997], [1000], [1014], [1122], [1194], [1198], [1209], [1212], [1251], [1253], [1332], [1335], [1345], [1366], [1369], [1383], [1389], [1392], [1401], [1590], [1592], [1594], [1596], [1597], [1601], [1603], [1630], [1640], [1641], [1642], [1643], [1644], [1645], [1648], [1649], [1650], [1651], [1658], [1659], [1660], [1661], [1662], [1664], [1665], [1666], [1667], [1668], [1674], [1675], [1680], [1681], [1682], [1690], [1691], [1704], [1705], [1722], [1723], [1736], [1737], [1738], [1740], [1741], [1746], [1747], [1748], [1749], [1750], [1751], [1752], [1753], [1754], [1756], [1757], [1758], [1759], [1760], [1768], [1769], [1770], [1776], [1777], [1792], [1794], [1795], [1796], [1798], [1799], [1800], [1801], [1802], [1803], [1804], [1816], [1817], [1818], [1819], [1820], [1821], [1822], [1823], [1824], [1826], [1827] [2019-10-03 02:50:28,650 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:50:28,650 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:50:28,783 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:50:28,784 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 196 root evaluator evaluations with a maximum evaluation depth of 0. Performed 196 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 364 variables. [2019-10-03 02:50:28,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:50:28,789 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:50:28,890 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:50:28,890 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:50:28,897 INFO L420 sIntCurrentIteration]: We unified 193 AI predicates to 193 [2019-10-03 02:50:28,897 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:50:28,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:50:28,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2019-10-03 02:50:28,898 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:50:28,899 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:50:28,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:50:28,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:50:28,900 INFO L87 Difference]: Start difference. First operand 1529 states and 2421 transitions. Second operand 2 states. [2019-10-03 02:50:28,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:50:28,900 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:50:28,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:50:28,901 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 194 [2019-10-03 02:50:28,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:50:28,901 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:50:28,901 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:50:28,901 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 193 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 02:50:28,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:50:28,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:50:28,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:50:28,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:50:28,902 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 194 [2019-10-03 02:50:28,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:50:28,902 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:50:28,903 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:50:28,903 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:50:28,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:50:28,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:50:28 BoogieIcfgContainer [2019-10-03 02:50:28,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:50:28,917 INFO L168 Benchmark]: Toolchain (without parser) took 6516.66 ms. Allocated memory was 133.2 MB in the beginning and 411.0 MB in the end (delta: 277.9 MB). Free memory was 85.1 MB in the beginning and 320.2 MB in the end (delta: -235.1 MB). Peak memory consumption was 42.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:50:28,923 INFO L168 Benchmark]: CDTParser took 0.21 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 02:50:28,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 989.62 ms. Allocated memory was 133.2 MB in the beginning and 200.8 MB in the end (delta: 67.6 MB). Free memory was 84.7 MB in the beginning and 136.2 MB in the end (delta: -51.5 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:50:28,927 INFO L168 Benchmark]: Boogie Preprocessor took 144.91 ms. Allocated memory is still 200.8 MB. Free memory was 136.2 MB in the beginning and 127.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:50:28,928 INFO L168 Benchmark]: RCFGBuilder took 1960.10 ms. Allocated memory was 200.8 MB in the beginning and 263.7 MB in the end (delta: 62.9 MB). Free memory was 127.0 MB in the beginning and 172.2 MB in the end (delta: -45.2 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:50:28,929 INFO L168 Benchmark]: TraceAbstraction took 3415.25 ms. Allocated memory was 263.7 MB in the beginning and 411.0 MB in the end (delta: 147.3 MB). Free memory was 170.1 MB in the beginning and 320.2 MB in the end (delta: -150.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:50:28,937 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 989.62 ms. Allocated memory was 133.2 MB in the beginning and 200.8 MB in the end (delta: 67.6 MB). Free memory was 84.7 MB in the beginning and 136.2 MB in the end (delta: -51.5 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.91 ms. Allocated memory is still 200.8 MB. Free memory was 136.2 MB in the beginning and 127.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1960.10 ms. Allocated memory was 200.8 MB in the beginning and 263.7 MB in the end (delta: 62.9 MB). Free memory was 127.0 MB in the beginning and 172.2 MB in the end (delta: -45.2 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3415.25 ms. Allocated memory was 263.7 MB in the beginning and 411.0 MB in the end (delta: 147.3 MB). Free memory was 170.1 MB in the beginning and 320.2 MB in the end (delta: -150.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2586]: 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 111 procedures, 746 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4074 SDtfs, 241 SDslu, 3405 SDs, 0 SdLazy, 20 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 213 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1529occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.155440414507772 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 6 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1499 NumberOfCodeBlocks, 1499 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1491 ConstructedInterpolants, 0 QuantifiedInterpolants, 297125 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 258/260 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...