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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:15,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:15,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:15,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:15,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:15,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:15,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:15,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:15,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:15,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:15,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:15,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:15,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:15,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:15,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:15,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:15,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:15,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:15,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:15,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:15,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:15,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:15,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:15,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:15,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:15,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:15,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:15,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:15,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:15,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:15,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:15,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:15,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:15,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:15,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:15,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:15,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:15,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:15,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:15,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:15,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:15,946 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 [2019-10-15 01:16:15,972 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:15,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:15,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:15,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:15,978 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:15,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:15,979 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:15,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:15,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:15,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:15,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:15,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:15,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:15,980 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:15,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:15,981 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:15,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:15,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:15,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:15,983 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:15,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:15,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:15,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:15,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:15,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:15,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:15,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:15,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:15,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:16:16,258 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:16,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:16,279 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:16,281 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:16,281 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:16,282 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c [2019-10-15 01:16:16,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad9ebd6a/78f39127e98d4218a065efc5586791f1/FLAG3f39a10ce [2019-10-15 01:16:16,977 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:16,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c [2019-10-15 01:16:16,998 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad9ebd6a/78f39127e98d4218a065efc5586791f1/FLAG3f39a10ce [2019-10-15 01:16:17,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad9ebd6a/78f39127e98d4218a065efc5586791f1 [2019-10-15 01:16:17,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:17,201 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:17,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:17,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:17,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:17,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:17" (1/1) ... [2019-10-15 01:16:17,208 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 15.10 01:16:17, skipping insertion in model container [2019-10-15 01:16:17,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:17" (1/1) ... [2019-10-15 01:16:17,214 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:17,294 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:18,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:18,073 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:18,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:18,341 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:18,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18 WrapperNode [2019-10-15 01:16:18,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:18,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:18,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:18,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:18,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:18,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:18,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:18,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:18,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (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 [2019-10-15 01:16:18,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:18,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:18,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:18,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:18,585 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:18,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:18,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:18,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:18,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:18,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:18,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:18,586 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:18,586 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:18,586 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:16:18,586 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:16:18,587 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:18,587 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:18,587 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:18,587 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:16:18,587 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:16:18,587 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:18,588 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:18,588 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:18,588 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:18,588 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:18,588 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:18,588 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:16:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:16:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:16:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:16:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:16:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:16:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:16:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:16:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:18,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:18,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:18,595 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:18,595 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:16:18,595 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:18,596 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:18,596 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:18,596 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:18,596 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:16:18,596 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:18,596 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:18,596 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:18,597 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:18,597 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:18,597 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:18,597 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:18,597 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:18,597 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:18,598 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:18,598 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:18,598 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:18,598 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:18,598 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:18,598 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:16:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:16:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:16:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:16:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:16:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:16:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:16:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:16:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:16:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:16:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:20,780 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:20,780 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:20,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:20 BoogieIcfgContainer [2019-10-15 01:16:20,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:20,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:20,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:20,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:20,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:17" (1/3) ... [2019-10-15 01:16:20,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13397ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:20, skipping insertion in model container [2019-10-15 01:16:20,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (2/3) ... [2019-10-15 01:16:20,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13397ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:20, skipping insertion in model container [2019-10-15 01:16:20,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:20" (3/3) ... [2019-10-15 01:16:20,796 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product32.cil.c [2019-10-15 01:16:20,806 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:20,817 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:20,828 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:20,866 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:20,866 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:20,866 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:20,875 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:20,875 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:20,875 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:20,875 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:20,876 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:20,914 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states. [2019-10-15 01:16:20,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:16:20,951 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:20,953 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:20,956 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:20,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:20,962 INFO L82 PathProgramCache]: Analyzing trace with hash -165883843, now seen corresponding path program 1 times [2019-10-15 01:16:20,971 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:20,972 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281944904] [2019-10-15 01:16:20,972 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:20,972 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:20,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:21,636 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:21,637 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281944904] [2019-10-15 01:16:21,638 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:21,638 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:16:21,639 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520771631] [2019-10-15 01:16:21,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:16:21,647 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:21,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:16:21,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:21,664 INFO L87 Difference]: Start difference. First operand 645 states. Second operand 2 states. [2019-10-15 01:16:21,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:21,761 INFO L93 Difference]: Finished difference Result 920 states and 1248 transitions. [2019-10-15 01:16:21,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:16:21,765 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 198 [2019-10-15 01:16:21,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:21,802 INFO L225 Difference]: With dead ends: 920 [2019-10-15 01:16:21,803 INFO L226 Difference]: Without dead ends: 588 [2019-10-15 01:16:21,818 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 [2019-10-15 01:16:21,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2019-10-15 01:16:21,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 588. [2019-10-15 01:16:21,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 588 states. [2019-10-15 01:16:21,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 802 transitions. [2019-10-15 01:16:21,915 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 802 transitions. Word has length 198 [2019-10-15 01:16:21,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:21,917 INFO L462 AbstractCegarLoop]: Abstraction has 588 states and 802 transitions. [2019-10-15 01:16:21,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:16:21,918 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 802 transitions. [2019-10-15 01:16:21,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-15 01:16:21,924 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:21,924 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:21,924 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:21,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:21,925 INFO L82 PathProgramCache]: Analyzing trace with hash -450437304, now seen corresponding path program 1 times [2019-10-15 01:16:21,925 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:21,925 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977952579] [2019-10-15 01:16:21,925 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:21,926 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:21,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:22,287 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977952579] [2019-10-15 01:16:22,288 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:22,288 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:22,288 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167745801] [2019-10-15 01:16:22,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:22,294 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:22,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:22,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:22,294 INFO L87 Difference]: Start difference. First operand 588 states and 802 transitions. Second operand 3 states. [2019-10-15 01:16:22,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:22,371 INFO L93 Difference]: Finished difference Result 903 states and 1212 transitions. [2019-10-15 01:16:22,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:22,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-15 01:16:22,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:22,379 INFO L225 Difference]: With dead ends: 903 [2019-10-15 01:16:22,380 INFO L226 Difference]: Without dead ends: 591 [2019-10-15 01:16:22,382 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 [2019-10-15 01:16:22,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2019-10-15 01:16:22,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 590. [2019-10-15 01:16:22,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2019-10-15 01:16:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 804 transitions. [2019-10-15 01:16:22,441 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 804 transitions. Word has length 199 [2019-10-15 01:16:22,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:22,442 INFO L462 AbstractCegarLoop]: Abstraction has 590 states and 804 transitions. [2019-10-15 01:16:22,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:22,442 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 804 transitions. [2019-10-15 01:16:22,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-15 01:16:22,446 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:22,447 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:22,447 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:22,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:22,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1838348472, now seen corresponding path program 1 times [2019-10-15 01:16:22,448 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:22,448 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244179723] [2019-10-15 01:16:22,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:22,614 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:22,615 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244179723] [2019-10-15 01:16:22,615 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:22,615 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:22,616 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315340013] [2019-10-15 01:16:22,619 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:22,621 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:22,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:22,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:22,622 INFO L87 Difference]: Start difference. First operand 590 states and 804 transitions. Second operand 3 states. [2019-10-15 01:16:22,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:22,683 INFO L93 Difference]: Finished difference Result 1158 states and 1609 transitions. [2019-10-15 01:16:22,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:22,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 209 [2019-10-15 01:16:22,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:22,695 INFO L225 Difference]: With dead ends: 1158 [2019-10-15 01:16:22,695 INFO L226 Difference]: Without dead ends: 633 [2019-10-15 01:16:22,698 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 [2019-10-15 01:16:22,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2019-10-15 01:16:22,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 632. [2019-10-15 01:16:22,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2019-10-15 01:16:22,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 876 transitions. [2019-10-15 01:16:22,749 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 876 transitions. Word has length 209 [2019-10-15 01:16:22,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:22,755 INFO L462 AbstractCegarLoop]: Abstraction has 632 states and 876 transitions. [2019-10-15 01:16:22,755 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:22,756 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 876 transitions. [2019-10-15 01:16:22,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-15 01:16:22,765 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:22,766 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:22,766 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:22,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:22,768 INFO L82 PathProgramCache]: Analyzing trace with hash -62389329, now seen corresponding path program 1 times [2019-10-15 01:16:22,768 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:22,769 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417904775] [2019-10-15 01:16:22,769 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,769 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:23,133 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:23,134 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417904775] [2019-10-15 01:16:23,135 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:23,135 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:23,135 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382156532] [2019-10-15 01:16:23,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:23,136 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:23,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:23,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:23,137 INFO L87 Difference]: Start difference. First operand 632 states and 876 transitions. Second operand 3 states. [2019-10-15 01:16:23,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:23,180 INFO L93 Difference]: Finished difference Result 1281 states and 1820 transitions. [2019-10-15 01:16:23,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:23,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2019-10-15 01:16:23,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:23,187 INFO L225 Difference]: With dead ends: 1281 [2019-10-15 01:16:23,187 INFO L226 Difference]: Without dead ends: 714 [2019-10-15 01:16:23,189 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 [2019-10-15 01:16:23,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2019-10-15 01:16:23,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 713. [2019-10-15 01:16:23,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2019-10-15 01:16:23,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1014 transitions. [2019-10-15 01:16:23,226 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1014 transitions. Word has length 210 [2019-10-15 01:16:23,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:23,227 INFO L462 AbstractCegarLoop]: Abstraction has 713 states and 1014 transitions. [2019-10-15 01:16:23,227 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:23,227 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1014 transitions. [2019-10-15 01:16:23,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-15 01:16:23,231 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:23,231 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:23,232 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:23,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:23,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1544795448, now seen corresponding path program 1 times [2019-10-15 01:16:23,232 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:23,233 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986937759] [2019-10-15 01:16:23,233 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,233 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:23,485 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:23,486 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986937759] [2019-10-15 01:16:23,486 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:23,486 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:23,487 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735664344] [2019-10-15 01:16:23,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:23,488 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:23,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:23,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:23,489 INFO L87 Difference]: Start difference. First operand 713 states and 1014 transitions. Second operand 3 states. [2019-10-15 01:16:23,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:23,537 INFO L93 Difference]: Finished difference Result 1518 states and 2224 transitions. [2019-10-15 01:16:23,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:23,537 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2019-10-15 01:16:23,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:23,544 INFO L225 Difference]: With dead ends: 1518 [2019-10-15 01:16:23,544 INFO L226 Difference]: Without dead ends: 870 [2019-10-15 01:16:23,547 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 [2019-10-15 01:16:23,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-10-15 01:16:23,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 869. [2019-10-15 01:16:23,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2019-10-15 01:16:23,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1278 transitions. [2019-10-15 01:16:23,598 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1278 transitions. Word has length 211 [2019-10-15 01:16:23,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:23,600 INFO L462 AbstractCegarLoop]: Abstraction has 869 states and 1278 transitions. [2019-10-15 01:16:23,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:23,600 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1278 transitions. [2019-10-15 01:16:23,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-15 01:16:23,609 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:23,610 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:23,610 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:23,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:23,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1683184849, now seen corresponding path program 1 times [2019-10-15 01:16:23,611 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:23,612 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861628128] [2019-10-15 01:16:23,612 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,612 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:23,867 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:23,868 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861628128] [2019-10-15 01:16:23,869 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:23,869 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:23,870 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600585001] [2019-10-15 01:16:23,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:23,871 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:23,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:23,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:23,872 INFO L87 Difference]: Start difference. First operand 869 states and 1278 transitions. Second operand 3 states. [2019-10-15 01:16:23,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:23,936 INFO L93 Difference]: Finished difference Result 1974 states and 2996 transitions. [2019-10-15 01:16:23,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:23,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2019-10-15 01:16:23,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:23,947 INFO L225 Difference]: With dead ends: 1974 [2019-10-15 01:16:23,948 INFO L226 Difference]: Without dead ends: 1170 [2019-10-15 01:16:23,952 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 [2019-10-15 01:16:23,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2019-10-15 01:16:23,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1169. [2019-10-15 01:16:23,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1169 states. [2019-10-15 01:16:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1782 transitions. [2019-10-15 01:16:24,008 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1782 transitions. Word has length 212 [2019-10-15 01:16:24,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:24,009 INFO L462 AbstractCegarLoop]: Abstraction has 1169 states and 1782 transitions. [2019-10-15 01:16:24,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:24,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1782 transitions. [2019-10-15 01:16:24,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2019-10-15 01:16:24,017 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:24,017 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:24,017 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:24,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:24,018 INFO L82 PathProgramCache]: Analyzing trace with hash 851882438, now seen corresponding path program 1 times [2019-10-15 01:16:24,018 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:24,018 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748137173] [2019-10-15 01:16:24,018 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:24,019 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:24,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:24,446 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:24,447 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748137173] [2019-10-15 01:16:24,447 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:24,447 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:24,447 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67093748] [2019-10-15 01:16:24,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:24,448 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:24,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:24,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:24,449 INFO L87 Difference]: Start difference. First operand 1169 states and 1782 transitions. Second operand 11 states. [2019-10-15 01:16:30,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:30,468 INFO L93 Difference]: Finished difference Result 3807 states and 5570 transitions. [2019-10-15 01:16:30,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 01:16:30,469 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 215 [2019-10-15 01:16:30,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:30,492 INFO L225 Difference]: With dead ends: 3807 [2019-10-15 01:16:30,492 INFO L226 Difference]: Without dead ends: 3508 [2019-10-15 01:16:30,496 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-15 01:16:30,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3508 states. [2019-10-15 01:16:30,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 3487. [2019-10-15 01:16:30,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3487 states. [2019-10-15 01:16:30,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3487 states to 3487 states and 5006 transitions. [2019-10-15 01:16:30,679 INFO L78 Accepts]: Start accepts. Automaton has 3487 states and 5006 transitions. Word has length 215 [2019-10-15 01:16:30,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:30,680 INFO L462 AbstractCegarLoop]: Abstraction has 3487 states and 5006 transitions. [2019-10-15 01:16:30,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:30,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3487 states and 5006 transitions. [2019-10-15 01:16:30,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-15 01:16:30,688 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:30,689 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:30,689 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:30,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:30,689 INFO L82 PathProgramCache]: Analyzing trace with hash -766411813, now seen corresponding path program 1 times [2019-10-15 01:16:30,690 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:30,690 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431458168] [2019-10-15 01:16:30,690 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:30,690 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:30,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:31,069 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:31,069 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431458168] [2019-10-15 01:16:31,069 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:31,070 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-15 01:16:31,070 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226823479] [2019-10-15 01:16:31,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-15 01:16:31,071 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:31,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-15 01:16:31,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:16:31,073 INFO L87 Difference]: Start difference. First operand 3487 states and 5006 transitions. Second operand 20 states. [2019-10-15 01:16:31,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:31,682 INFO L93 Difference]: Finished difference Result 6068 states and 8719 transitions. [2019-10-15 01:16:31,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-15 01:16:31,683 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 216 [2019-10-15 01:16:31,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:31,706 INFO L225 Difference]: With dead ends: 6068 [2019-10-15 01:16:31,706 INFO L226 Difference]: Without dead ends: 3433 [2019-10-15 01:16:31,718 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:16:31,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2019-10-15 01:16:31,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3431. [2019-10-15 01:16:31,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3431 states. [2019-10-15 01:16:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3431 states to 3431 states and 4920 transitions. [2019-10-15 01:16:31,880 INFO L78 Accepts]: Start accepts. Automaton has 3431 states and 4920 transitions. Word has length 216 [2019-10-15 01:16:31,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:31,881 INFO L462 AbstractCegarLoop]: Abstraction has 3431 states and 4920 transitions. [2019-10-15 01:16:31,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-15 01:16:31,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3431 states and 4920 transitions. [2019-10-15 01:16:31,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-15 01:16:31,889 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:31,890 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:31,890 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:31,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:31,891 INFO L82 PathProgramCache]: Analyzing trace with hash -840508066, now seen corresponding path program 1 times [2019-10-15 01:16:31,891 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:31,891 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264657753] [2019-10-15 01:16:31,891 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:31,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:31,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:32,171 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:32,172 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264657753] [2019-10-15 01:16:32,172 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:32,172 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:16:32,172 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698622516] [2019-10-15 01:16:32,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:16:32,174 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:32,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:16:32,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:16:32,175 INFO L87 Difference]: Start difference. First operand 3431 states and 4920 transitions. Second operand 6 states. [2019-10-15 01:16:32,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:32,963 INFO L93 Difference]: Finished difference Result 9461 states and 13678 transitions. [2019-10-15 01:16:32,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:16:32,964 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2019-10-15 01:16:32,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:33,012 INFO L225 Difference]: With dead ends: 9461 [2019-10-15 01:16:33,012 INFO L226 Difference]: Without dead ends: 6949 [2019-10-15 01:16:33,025 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:16:33,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6949 states. [2019-10-15 01:16:33,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6949 to 6878. [2019-10-15 01:16:33,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6878 states. [2019-10-15 01:16:33,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6878 states to 6878 states and 10018 transitions. [2019-10-15 01:16:33,470 INFO L78 Accepts]: Start accepts. Automaton has 6878 states and 10018 transitions. Word has length 225 [2019-10-15 01:16:33,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:33,471 INFO L462 AbstractCegarLoop]: Abstraction has 6878 states and 10018 transitions. [2019-10-15 01:16:33,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:16:33,471 INFO L276 IsEmpty]: Start isEmpty. Operand 6878 states and 10018 transitions. [2019-10-15 01:16:33,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-15 01:16:33,488 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:33,488 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:33,489 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:33,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:33,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1633314013, now seen corresponding path program 1 times [2019-10-15 01:16:33,490 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:33,490 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21939031] [2019-10-15 01:16:33,490 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:33,490 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:33,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:33,672 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:33,673 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21939031] [2019-10-15 01:16:33,673 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:33,673 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:16:33,673 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453840926] [2019-10-15 01:16:33,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:16:33,674 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:33,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:16:33,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:16:33,675 INFO L87 Difference]: Start difference. First operand 6878 states and 10018 transitions. Second operand 5 states. [2019-10-15 01:16:35,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:35,313 INFO L93 Difference]: Finished difference Result 24031 states and 35587 transitions. [2019-10-15 01:16:35,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:35,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 226 [2019-10-15 01:16:35,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:36,006 INFO L225 Difference]: With dead ends: 24031 [2019-10-15 01:16:36,006 INFO L226 Difference]: Without dead ends: 18924 [2019-10-15 01:16:36,035 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:16:36,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18924 states. [2019-10-15 01:16:36,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18924 to 18828. [2019-10-15 01:16:36,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18828 states. [2019-10-15 01:16:36,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18828 states to 18828 states and 27803 transitions. [2019-10-15 01:16:36,735 INFO L78 Accepts]: Start accepts. Automaton has 18828 states and 27803 transitions. Word has length 226 [2019-10-15 01:16:36,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:36,736 INFO L462 AbstractCegarLoop]: Abstraction has 18828 states and 27803 transitions. [2019-10-15 01:16:36,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:16:36,736 INFO L276 IsEmpty]: Start isEmpty. Operand 18828 states and 27803 transitions. [2019-10-15 01:16:36,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-15 01:16:36,760 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:36,760 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:36,760 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:36,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:36,761 INFO L82 PathProgramCache]: Analyzing trace with hash 2074877164, now seen corresponding path program 1 times [2019-10-15 01:16:36,761 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:36,761 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244398009] [2019-10-15 01:16:36,761 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:36,762 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:36,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:37,102 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:37,102 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244398009] [2019-10-15 01:16:37,102 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:37,103 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-15 01:16:37,103 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776984548] [2019-10-15 01:16:37,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:16:37,104 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:37,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:16:37,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:16:37,104 INFO L87 Difference]: Start difference. First operand 18828 states and 27803 transitions. Second operand 13 states. [2019-10-15 01:16:37,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:37,953 INFO L93 Difference]: Finished difference Result 34083 states and 49544 transitions. [2019-10-15 01:16:37,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:16:37,954 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 226 [2019-10-15 01:16:37,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:38,040 INFO L225 Difference]: With dead ends: 34083 [2019-10-15 01:16:38,041 INFO L226 Difference]: Without dead ends: 18752 [2019-10-15 01:16:38,094 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:16:38,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18752 states. [2019-10-15 01:16:38,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18752 to 18700. [2019-10-15 01:16:38,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18700 states. [2019-10-15 01:16:38,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18700 states to 18700 states and 27412 transitions. [2019-10-15 01:16:38,922 INFO L78 Accepts]: Start accepts. Automaton has 18700 states and 27412 transitions. Word has length 226 [2019-10-15 01:16:38,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:38,922 INFO L462 AbstractCegarLoop]: Abstraction has 18700 states and 27412 transitions. [2019-10-15 01:16:38,922 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:16:38,923 INFO L276 IsEmpty]: Start isEmpty. Operand 18700 states and 27412 transitions. [2019-10-15 01:16:38,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-10-15 01:16:38,948 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:38,948 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:38,948 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:38,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:38,949 INFO L82 PathProgramCache]: Analyzing trace with hash -864211826, now seen corresponding path program 1 times [2019-10-15 01:16:38,949 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:38,949 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968236486] [2019-10-15 01:16:38,949 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:38,950 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:38,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:39,154 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:16:39,155 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968236486] [2019-10-15 01:16:39,155 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:39,155 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:39,156 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774815540] [2019-10-15 01:16:39,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:39,156 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:39,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:39,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:39,157 INFO L87 Difference]: Start difference. First operand 18700 states and 27412 transitions. Second operand 8 states. [2019-10-15 01:16:44,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:44,909 INFO L93 Difference]: Finished difference Result 56466 states and 85234 transitions. [2019-10-15 01:16:44,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:44,910 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 263 [2019-10-15 01:16:44,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:45,091 INFO L225 Difference]: With dead ends: 56466 [2019-10-15 01:16:45,092 INFO L226 Difference]: Without dead ends: 37831 [2019-10-15 01:16:45,148 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:45,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37831 states. [2019-10-15 01:16:46,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37831 to 22284. [2019-10-15 01:16:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22284 states. [2019-10-15 01:16:46,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22284 states to 22284 states and 34800 transitions. [2019-10-15 01:16:46,490 INFO L78 Accepts]: Start accepts. Automaton has 22284 states and 34800 transitions. Word has length 263 [2019-10-15 01:16:46,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:46,491 INFO L462 AbstractCegarLoop]: Abstraction has 22284 states and 34800 transitions. [2019-10-15 01:16:46,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:16:46,491 INFO L276 IsEmpty]: Start isEmpty. Operand 22284 states and 34800 transitions. [2019-10-15 01:16:46,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2019-10-15 01:16:46,582 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:46,583 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:46,583 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:46,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:46,583 INFO L82 PathProgramCache]: Analyzing trace with hash -513023094, now seen corresponding path program 1 times [2019-10-15 01:16:46,584 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:46,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937451226] [2019-10-15 01:16:46,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:46,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:46,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:46,854 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:16:46,855 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937451226] [2019-10-15 01:16:46,855 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:46,855 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:46,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239508205] [2019-10-15 01:16:46,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:46,857 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:46,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:46,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:46,859 INFO L87 Difference]: Start difference. First operand 22284 states and 34800 transitions. Second operand 8 states.