java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:11:16,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:11:16,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:11:16,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:11:16,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:11:16,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:11:16,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:11:16,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:11:16,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:11:16,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:11:16,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:11:16,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:11:16,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:11:16,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:11:16,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:11:16,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:11:16,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:11:16,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:11:16,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:11:16,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:11:16,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:11:16,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:11:16,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:11:16,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:11:16,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:11:16,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:11:16,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:11:16,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:11:16,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:11:16,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:11:16,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:11:16,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:11:16,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:11:16,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:11:16,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:11:16,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:11:16,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:11:16,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:11:16,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:11:16,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:11:16,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:11:16,089 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:11:16,110 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:11:16,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:11:16,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:11:16,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:11:16,113 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:11:16,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:11:16,113 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:11:16,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:11:16,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:11:16,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:11:16,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:11:16,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:11:16,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:11:16,116 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:11:16,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:11:16,116 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:11:16,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:11:16,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:11:16,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:11:16,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:11:16,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:11:16,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:11:16,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:11:16,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:11:16,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:11:16,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:11:16,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:11:16,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:11:16,119 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:11:16,373 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:11:16,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:11:16,388 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:11:16,390 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:11:16,390 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:11:16,391 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c [2019-10-13 23:11:16,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0baf735ba/ccccf90b96ff44fca9c2809cab469b03/FLAG6b3451dcf [2019-10-13 23:11:17,172 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:11:17,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c [2019-10-13 23:11:17,204 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0baf735ba/ccccf90b96ff44fca9c2809cab469b03/FLAG6b3451dcf [2019-10-13 23:11:17,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0baf735ba/ccccf90b96ff44fca9c2809cab469b03 [2019-10-13 23:11:17,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:11:17,342 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:11:17,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:17,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:11:17,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:11:17,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:17" (1/1) ... [2019-10-13 23:11:17,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6fc6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:17, skipping insertion in model container [2019-10-13 23:11:17,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:17" (1/1) ... [2019-10-13 23:11:17,354 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:11:17,437 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:11:18,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:18,177 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:11:18,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:18,467 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:11:18,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18 WrapperNode [2019-10-13 23:11:18,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:18,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:11:18,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:11:18,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:11:18,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (1/1) ... [2019-10-13 23:11:18,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (1/1) ... [2019-10-13 23:11:18,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (1/1) ... [2019-10-13 23:11:18,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (1/1) ... [2019-10-13 23:11:18,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (1/1) ... [2019-10-13 23:11:18,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (1/1) ... [2019-10-13 23:11:18,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (1/1) ... [2019-10-13 23:11:18,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:11:18,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:11:18,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:11:18,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:11:18,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (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 [2019-10-13 23:11:18,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:11:18,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:11:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:11:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:11:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:11:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:11:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:11:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:11:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:11:18,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:11:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:11:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:11:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:11:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:11:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:11:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:11:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:11:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:11:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:11:18,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:11:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:11:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:11:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:11:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:11:18,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:11:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:11:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:11:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:11:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:11:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:11:18,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:11:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:11:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:11:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:11:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:11:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:11:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:11:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:11:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:11:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:11:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:11:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:11:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:11:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:11:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:11:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:11:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:11:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:11:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:11:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:11:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:11:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:11:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:11:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:11:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:11:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:11:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:11:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:11:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:11:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:11:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:11:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:11:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:11:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:11:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:11:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:11:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:11:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:11:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:11:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:11:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:11:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:11:18,719 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:11:18,719 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:11:18,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:11:18,719 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:11:18,719 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:11:18,719 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:11:18,720 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:11:18,720 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:11:18,720 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:11:18,720 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:11:18,720 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:11:18,720 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:11:18,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:18,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:18,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:11:18,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:11:18,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:18,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:11:18,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:18,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:11:18,722 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:11:18,722 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:11:18,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:11:18,722 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:11:18,722 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:11:18,722 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:11:18,723 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:11:18,723 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:11:18,723 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:11:18,723 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:11:18,723 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:11:18,723 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:11:18,724 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:11:18,724 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:11:18,724 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:11:18,724 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:11:18,724 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:11:18,724 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:11:18,724 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:11:18,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:11:18,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:11:18,725 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:11:18,725 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:11:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:11:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:11:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:11:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:11:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:11:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:11:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:11:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:11:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:11:18,727 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:11:18,727 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:11:18,727 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:11:18,727 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:11:18,727 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:11:18,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:11:18,728 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:11:18,728 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:11:18,728 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:11:18,728 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:11:18,728 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:11:18,728 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:11:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:11:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:11:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:11:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:11:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:11:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:11:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:11:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:11:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:11:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:11:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:11:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:11:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:11:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:11:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:11:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:11:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:11:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:11:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:11:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:11:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:11:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:11:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:11:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:11:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:11:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:11:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:11:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:11:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:11:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:11:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:11:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:11:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:11:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:11:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:11:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:11:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:11:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:11:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:11:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:11:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:11:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:11:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:11:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:11:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:11:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:11:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:11:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:11:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:11:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:11:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:11:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:11:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:11:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:11:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:11:18,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:11:18,739 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:11:18,739 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:11:18,739 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:11:18,739 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:11:18,739 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:11:18,739 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:11:18,740 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:11:18,740 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:11:18,740 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:11:18,740 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:11:18,740 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:11:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:11:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:11:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:11:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:11:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:11:18,741 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:11:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:11:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:11:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:11:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:11:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:11:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:11:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:11:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:11:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:11:18,743 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:11:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:11:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:11:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:11:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:11:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:11:18,744 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:11:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:11:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:11:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:11:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:11:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:11:18,745 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:11:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:11:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:11:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:11:18,746 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:11:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:11:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:11:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:11:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:11:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:11:18,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:11:23,290 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:11:23,291 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:11:23,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:23 BoogieIcfgContainer [2019-10-13 23:11:23,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:11:23,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:11:23,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:11:23,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:11:23,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:11:17" (1/3) ... [2019-10-13 23:11:23,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d6cd41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:23, skipping insertion in model container [2019-10-13 23:11:23,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (2/3) ... [2019-10-13 23:11:23,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d6cd41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:23, skipping insertion in model container [2019-10-13 23:11:23,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:23" (3/3) ... [2019-10-13 23:11:23,300 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product32.cil.c [2019-10-13 23:11:23,310 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:11:23,318 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:11:23,329 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:11:23,356 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:11:23,357 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:11:23,357 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:11:23,357 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:11:23,357 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:11:23,357 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:11:23,357 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:11:23,358 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:11:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states. [2019-10-13 23:11:23,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 23:11:23,421 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:23,423 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:23,426 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:23,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:23,432 INFO L82 PathProgramCache]: Analyzing trace with hash 2047346776, now seen corresponding path program 1 times [2019-10-13 23:11:23,442 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:23,443 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443491752] [2019-10-13 23:11:23,443 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:23,443 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:23,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:24,117 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:24,118 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443491752] [2019-10-13 23:11:24,119 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:24,119 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:11:24,120 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941572055] [2019-10-13 23:11:24,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:11:24,126 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:24,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:11:24,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:11:24,143 INFO L87 Difference]: Start difference. First operand 451 states. Second operand 2 states. [2019-10-13 23:11:24,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:24,253 INFO L93 Difference]: Finished difference Result 642 states and 769 transitions. [2019-10-13 23:11:24,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:11:24,255 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-13 23:11:24,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:24,288 INFO L225 Difference]: With dead ends: 642 [2019-10-13 23:11:24,288 INFO L226 Difference]: Without dead ends: 403 [2019-10-13 23:11:24,298 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:11:24,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-10-13 23:11:24,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2019-10-13 23:11:24,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-10-13 23:11:24,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 478 transitions. [2019-10-13 23:11:24,436 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 478 transitions. Word has length 154 [2019-10-13 23:11:24,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:24,439 INFO L462 AbstractCegarLoop]: Abstraction has 403 states and 478 transitions. [2019-10-13 23:11:24,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:11:24,440 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 478 transitions. [2019-10-13 23:11:24,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 23:11:24,450 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:24,450 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:24,451 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:24,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:24,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1986785659, now seen corresponding path program 1 times [2019-10-13 23:11:24,452 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:24,453 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099494454] [2019-10-13 23:11:24,453 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:24,453 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:24,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:24,794 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:24,794 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099494454] [2019-10-13 23:11:24,795 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:24,795 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:24,795 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286942167] [2019-10-13 23:11:24,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:24,798 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:24,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:24,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:24,800 INFO L87 Difference]: Start difference. First operand 403 states and 478 transitions. Second operand 3 states. [2019-10-13 23:11:24,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:24,869 INFO L93 Difference]: Finished difference Result 627 states and 736 transitions. [2019-10-13 23:11:24,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:24,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-13 23:11:24,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:24,877 INFO L225 Difference]: With dead ends: 627 [2019-10-13 23:11:24,877 INFO L226 Difference]: Without dead ends: 405 [2019-10-13 23:11:24,880 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:24,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2019-10-13 23:11:24,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2019-10-13 23:11:24,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-13 23:11:24,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 480 transitions. [2019-10-13 23:11:24,917 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 480 transitions. Word has length 155 [2019-10-13 23:11:24,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:24,918 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 480 transitions. [2019-10-13 23:11:24,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:24,918 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 480 transitions. [2019-10-13 23:11:24,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-13 23:11:24,923 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:24,923 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:24,923 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:24,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:24,924 INFO L82 PathProgramCache]: Analyzing trace with hash -652679702, now seen corresponding path program 1 times [2019-10-13 23:11:24,924 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:24,924 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122533668] [2019-10-13 23:11:24,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:24,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:24,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:25,143 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:25,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122533668] [2019-10-13 23:11:25,144 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:25,144 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:25,144 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104649871] [2019-10-13 23:11:25,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:25,145 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:25,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:25,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:25,146 INFO L87 Difference]: Start difference. First operand 405 states and 480 transitions. Second operand 3 states. [2019-10-13 23:11:25,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:25,190 INFO L93 Difference]: Finished difference Result 794 states and 970 transitions. [2019-10-13 23:11:25,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:25,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2019-10-13 23:11:25,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:25,196 INFO L225 Difference]: With dead ends: 794 [2019-10-13 23:11:25,196 INFO L226 Difference]: Without dead ends: 447 [2019-10-13 23:11:25,198 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:25,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-10-13 23:11:25,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2019-10-13 23:11:25,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2019-10-13 23:11:25,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 551 transitions. [2019-10-13 23:11:25,227 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 551 transitions. Word has length 164 [2019-10-13 23:11:25,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:25,228 INFO L462 AbstractCegarLoop]: Abstraction has 446 states and 551 transitions. [2019-10-13 23:11:25,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:25,229 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 551 transitions. [2019-10-13 23:11:25,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 23:11:25,233 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:25,234 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:25,234 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:25,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:25,234 INFO L82 PathProgramCache]: Analyzing trace with hash -586369187, now seen corresponding path program 1 times [2019-10-13 23:11:25,234 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:25,235 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763330166] [2019-10-13 23:11:25,235 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:25,235 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:25,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:25,410 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:25,410 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763330166] [2019-10-13 23:11:25,410 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:25,410 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:25,411 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220572935] [2019-10-13 23:11:25,412 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:25,412 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:25,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:25,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:25,413 INFO L87 Difference]: Start difference. First operand 446 states and 551 transitions. Second operand 3 states. [2019-10-13 23:11:25,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:25,465 INFO L93 Difference]: Finished difference Result 914 states and 1178 transitions. [2019-10-13 23:11:25,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:25,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-13 23:11:25,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:25,472 INFO L225 Difference]: With dead ends: 914 [2019-10-13 23:11:25,472 INFO L226 Difference]: Without dead ends: 526 [2019-10-13 23:11:25,474 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:25,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2019-10-13 23:11:25,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 525. [2019-10-13 23:11:25,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2019-10-13 23:11:25,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 687 transitions. [2019-10-13 23:11:25,512 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 687 transitions. Word has length 165 [2019-10-13 23:11:25,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:25,514 INFO L462 AbstractCegarLoop]: Abstraction has 525 states and 687 transitions. [2019-10-13 23:11:25,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:25,514 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 687 transitions. [2019-10-13 23:11:25,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-13 23:11:25,518 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:25,518 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:25,519 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:25,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:25,519 INFO L82 PathProgramCache]: Analyzing trace with hash 375382896, now seen corresponding path program 1 times [2019-10-13 23:11:25,519 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:25,520 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583810882] [2019-10-13 23:11:25,520 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:25,520 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:25,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:26,292 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:11:26,293 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583810882] [2019-10-13 23:11:26,293 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:26,293 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-13 23:11:26,293 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082105379] [2019-10-13 23:11:26,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-13 23:11:26,294 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:26,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-13 23:11:26,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:11:26,295 INFO L87 Difference]: Start difference. First operand 525 states and 687 transitions. Second operand 26 states. [2019-10-13 23:11:35,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:35,885 INFO L93 Difference]: Finished difference Result 1329 states and 1679 transitions. [2019-10-13 23:11:35,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-13 23:11:35,886 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 168 [2019-10-13 23:11:35,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:35,894 INFO L225 Difference]: With dead ends: 1329 [2019-10-13 23:11:35,894 INFO L226 Difference]: Without dead ends: 1111 [2019-10-13 23:11:35,896 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=294, Invalid=2898, Unknown=0, NotChecked=0, Total=3192 [2019-10-13 23:11:35,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2019-10-13 23:11:35,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1098. [2019-10-13 23:11:35,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1098 states. [2019-10-13 23:11:35,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1375 transitions. [2019-10-13 23:11:35,955 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1375 transitions. Word has length 168 [2019-10-13 23:11:35,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:35,956 INFO L462 AbstractCegarLoop]: Abstraction has 1098 states and 1375 transitions. [2019-10-13 23:11:35,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-13 23:11:35,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1375 transitions. [2019-10-13 23:11:35,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 23:11:35,959 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:35,960 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:35,960 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:35,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:35,960 INFO L82 PathProgramCache]: Analyzing trace with hash -226636973, now seen corresponding path program 1 times [2019-10-13 23:11:35,961 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:35,961 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27501315] [2019-10-13 23:11:35,961 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:35,961 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:35,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:36,399 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:11:36,400 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27501315] [2019-10-13 23:11:36,400 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:36,401 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 23:11:36,401 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147039837] [2019-10-13 23:11:36,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 23:11:36,402 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:36,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 23:11:36,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-10-13 23:11:36,403 INFO L87 Difference]: Start difference. First operand 1098 states and 1375 transitions. Second operand 16 states. [2019-10-13 23:11:40,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:40,844 INFO L93 Difference]: Finished difference Result 2466 states and 3062 transitions. [2019-10-13 23:11:40,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-13 23:11:40,849 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 174 [2019-10-13 23:11:40,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:40,860 INFO L225 Difference]: With dead ends: 2466 [2019-10-13 23:11:40,860 INFO L226 Difference]: Without dead ends: 2059 [2019-10-13 23:11:40,862 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2019-10-13 23:11:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2019-10-13 23:11:40,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 2006. [2019-10-13 23:11:40,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2006 states. [2019-10-13 23:11:40,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2487 transitions. [2019-10-13 23:11:40,997 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2487 transitions. Word has length 174 [2019-10-13 23:11:41,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:41,000 INFO L462 AbstractCegarLoop]: Abstraction has 2006 states and 2487 transitions. [2019-10-13 23:11:41,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 23:11:41,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2487 transitions. [2019-10-13 23:11:41,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 23:11:41,004 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:41,005 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:41,005 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:41,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:41,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1042031934, now seen corresponding path program 1 times [2019-10-13 23:11:41,006 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:41,006 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286998595] [2019-10-13 23:11:41,006 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:41,006 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:41,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:41,160 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:41,161 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286998595] [2019-10-13 23:11:41,161 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:41,162 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:41,163 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297812381] [2019-10-13 23:11:41,164 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:41,164 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:41,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:41,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:41,165 INFO L87 Difference]: Start difference. First operand 2006 states and 2487 transitions. Second operand 3 states. [2019-10-13 23:11:41,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:41,292 INFO L93 Difference]: Finished difference Result 4167 states and 5283 transitions. [2019-10-13 23:11:41,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:41,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-13 23:11:41,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:41,308 INFO L225 Difference]: With dead ends: 4167 [2019-10-13 23:11:41,308 INFO L226 Difference]: Without dead ends: 2219 [2019-10-13 23:11:41,320 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:41,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2019-10-13 23:11:41,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2217. [2019-10-13 23:11:41,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2217 states. [2019-10-13 23:11:41,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2217 states to 2217 states and 2851 transitions. [2019-10-13 23:11:41,463 INFO L78 Accepts]: Start accepts. Automaton has 2217 states and 2851 transitions. Word has length 190 [2019-10-13 23:11:41,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:41,464 INFO L462 AbstractCegarLoop]: Abstraction has 2217 states and 2851 transitions. [2019-10-13 23:11:41,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:41,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2217 states and 2851 transitions. [2019-10-13 23:11:41,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-13 23:11:41,469 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:41,470 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:41,470 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:41,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:41,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1904967631, now seen corresponding path program 1 times [2019-10-13 23:11:41,471 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:41,471 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674711971] [2019-10-13 23:11:41,471 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:41,472 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:41,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:42,047 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:11:42,048 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674711971] [2019-10-13 23:11:42,048 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:42,048 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-13 23:11:42,049 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553968145] [2019-10-13 23:11:42,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-13 23:11:42,050 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:42,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-13 23:11:42,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2019-10-13 23:11:42,051 INFO L87 Difference]: Start difference. First operand 2217 states and 2851 transitions. Second operand 17 states. [2019-10-13 23:11:49,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:49,224 INFO L93 Difference]: Finished difference Result 4628 states and 6119 transitions. [2019-10-13 23:11:49,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 23:11:49,225 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 191 [2019-10-13 23:11:49,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:49,244 INFO L225 Difference]: With dead ends: 4628 [2019-10-13 23:11:49,244 INFO L226 Difference]: Without dead ends: 3432 [2019-10-13 23:11:49,249 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 10 SyntacticMatches, 21 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=277, Invalid=1529, Unknown=0, NotChecked=0, Total=1806 [2019-10-13 23:11:49,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2019-10-13 23:11:49,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 2631. [2019-10-13 23:11:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2631 states. [2019-10-13 23:11:49,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3568 transitions. [2019-10-13 23:11:49,428 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3568 transitions. Word has length 191 [2019-10-13 23:11:49,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:49,428 INFO L462 AbstractCegarLoop]: Abstraction has 2631 states and 3568 transitions. [2019-10-13 23:11:49,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-13 23:11:49,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3568 transitions. [2019-10-13 23:11:49,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 23:11:49,436 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:49,436 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:49,437 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:49,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:49,437 INFO L82 PathProgramCache]: Analyzing trace with hash 471230789, now seen corresponding path program 1 times [2019-10-13 23:11:49,438 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:49,438 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423562128] [2019-10-13 23:11:49,438 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:49,438 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:49,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:49,582 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:49,582 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423562128] [2019-10-13 23:11:49,584 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:49,584 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:49,584 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79699538] [2019-10-13 23:11:49,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:49,585 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:49,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:49,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:49,586 INFO L87 Difference]: Start difference. First operand 2631 states and 3568 transitions. Second operand 3 states. [2019-10-13 23:11:49,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:49,712 INFO L93 Difference]: Finished difference Result 5493 states and 7604 transitions. [2019-10-13 23:11:49,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:49,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-13 23:11:49,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:49,730 INFO L225 Difference]: With dead ends: 5493 [2019-10-13 23:11:49,731 INFO L226 Difference]: Without dead ends: 2924 [2019-10-13 23:11:49,741 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:49,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2019-10-13 23:11:49,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2923. [2019-10-13 23:11:49,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2923 states. [2019-10-13 23:11:49,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 4080 transitions. [2019-10-13 23:11:49,912 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 4080 transitions. Word has length 192 [2019-10-13 23:11:49,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:49,912 INFO L462 AbstractCegarLoop]: Abstraction has 2923 states and 4080 transitions. [2019-10-13 23:11:49,912 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:49,912 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 4080 transitions. [2019-10-13 23:11:49,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-13 23:11:49,927 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:49,927 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:49,927 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:49,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:49,928 INFO L82 PathProgramCache]: Analyzing trace with hash 384765503, now seen corresponding path program 1 times [2019-10-13 23:11:49,928 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:49,928 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559464942] [2019-10-13 23:11:49,928 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:49,928 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:49,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:50,185 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:50,186 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559464942] [2019-10-13 23:11:50,186 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:50,187 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:11:50,187 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116526523] [2019-10-13 23:11:50,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:11:50,188 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:50,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:11:50,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:11:50,188 INFO L87 Difference]: Start difference. First operand 2923 states and 4080 transitions. Second operand 12 states.