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_spec3_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:14:40,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:14:40,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:14:40,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:14:40,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:14:40,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:14:40,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:14:40,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:14:40,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:14:40,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:14:40,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:14:40,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:14:40,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:14:40,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:14:40,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:14:40,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:14:40,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:14:40,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:14:40,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:14:40,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:14:40,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:14:40,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:14:40,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:14:40,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:14:40,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:14:40,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:14:40,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:14:40,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:14:40,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:14:40,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:14:40,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:14:40,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:14:40,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:14:40,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:14:40,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:14:40,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:14:40,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:14:40,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:14:40,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:14:40,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:14:40,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:14:40,938 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 01:14:40,962 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:14:40,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:14:40,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:14:40,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:14:40,966 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:14:40,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:14:40,966 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:14:40,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:14:40,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:14:40,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:14:40,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:14:40,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:14:40,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:14:40,969 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:14:40,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:14:40,970 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:14:40,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:14:40,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:14:40,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:14:40,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:14:40,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:14:40,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:14:40,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:14:40,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:14:40,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:14:40,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:14:40,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:14:40,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:14:40,973 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 01:14:41,240 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:14:41,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:14:41,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:14:41,260 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:14:41,260 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:14:41,261 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product25.cil.c [2019-10-15 01:14:41,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d23a30bf/bb66df96ccef4105b80d2b19c35cf151/FLAG35ba12222 [2019-10-15 01:14:41,956 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:14:41,956 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product25.cil.c [2019-10-15 01:14:41,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d23a30bf/bb66df96ccef4105b80d2b19c35cf151/FLAG35ba12222 [2019-10-15 01:14:42,162 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d23a30bf/bb66df96ccef4105b80d2b19c35cf151 [2019-10-15 01:14:42,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:14:42,177 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:14:42,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:42,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:14:42,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:14:42,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:42" (1/1) ... [2019-10-15 01:14:42,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4563917c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:42, skipping insertion in model container [2019-10-15 01:14:42,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:42" (1/1) ... [2019-10-15 01:14:42,194 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:14:42,279 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:14:43,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:43,074 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:14:43,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:43,305 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:14:43,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:43 WrapperNode [2019-10-15 01:14:43,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:43,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:14:43,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:14:43,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:14:43,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:43" (1/1) ... [2019-10-15 01:14:43,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:43" (1/1) ... [2019-10-15 01:14:43,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:43" (1/1) ... [2019-10-15 01:14:43,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:43" (1/1) ... [2019-10-15 01:14:43,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:43" (1/1) ... [2019-10-15 01:14:43,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:43" (1/1) ... [2019-10-15 01:14:43,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:43" (1/1) ... [2019-10-15 01:14:43,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:14:43,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:14:43,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:14:43,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:14:43,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:43" (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 01:14:43,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:14:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:14:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:14:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:14:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:14:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:14:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:14:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:14:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:14:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:14:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:14:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:14:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:14:43,565 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:14:43,565 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:14:43,565 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:14:43,565 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:14:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:14:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:14:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:14:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:14:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:14:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:14:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:43,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:43,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:43,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:14:43,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:14:43,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:14:43,569 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:14:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:14:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:14:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:14:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:14:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:14:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:14:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:14:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:14:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:14:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:14:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:14:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:14:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:14:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:14:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:14:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:14:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:14:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:14:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:14:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:14:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:14:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:14:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:14:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:14:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:14:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:14:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:14:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:14:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:14:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:14:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:14:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:14:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:14:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:14:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:14:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:14:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:14:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:14:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:14:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:14:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:14:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:14:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:14:43,577 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:14:43,577 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:14:43,577 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:14:43,577 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:14:43,577 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:14:43,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:14:43,578 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:14:43,578 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:14:43,578 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:14:43,578 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:14:43,578 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:14:43,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:14:43,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:14:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:14:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:14:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:14:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:14:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:14:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:14:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:14:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:14:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:14:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:14:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:14:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:14:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:14:43,581 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:14:43,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:14:43,581 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:14:43,581 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:14:43,581 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:14:43,581 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:14:43,581 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:14:43,582 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:14:43,582 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:14:43,582 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:14:43,582 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:14:43,582 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:14:43,582 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:14:43,582 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:14:43,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:14:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:14:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:14:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:14:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:14:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:14:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:14:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:14:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:14:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:14:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:14:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:14:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:14:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:14:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:14:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:14:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:14:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:14:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:14:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:14:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:14:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:14:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:14:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:14:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:14:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:14:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:14:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:14:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:14:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:14:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:14:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:14:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:14:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:14:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:14:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:14:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:14:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:14:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:14:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:14:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:14:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:14:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:14:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:14:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:14:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:14:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:14:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:14:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:14:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:14:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:14:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:14:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:14:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:14:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:14:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:14:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:14:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:14:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:14:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:14:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:14:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:14:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:14:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:14:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:14:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:14:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:14:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:14:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:14:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:14:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:14:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:14:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:14:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:14:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:14:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:14:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:14:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:14:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:14:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:14:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:14:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:14:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:14:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:14:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:14:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:14:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:14:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:14:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:14:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:14:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:14:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:14:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:14:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:14:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:14:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:14:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:14:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:14:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:14:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:14:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:14:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:14:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:14:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:14:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:14:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:14:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:14:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:14:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:14:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:14:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:14:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:14:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:14:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:14:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:14:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:14:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:14:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:14:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:14:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:14:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:14:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:14:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:14:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:14:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:14:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:14:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:14:45,800 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:14:45,800 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:14:45,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:45 BoogieIcfgContainer [2019-10-15 01:14:45,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:14:45,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:14:45,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:14:45,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:14:45,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:14:42" (1/3) ... [2019-10-15 01:14:45,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe66366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:45, skipping insertion in model container [2019-10-15 01:14:45,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:43" (2/3) ... [2019-10-15 01:14:45,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe66366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:45, skipping insertion in model container [2019-10-15 01:14:45,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:45" (3/3) ... [2019-10-15 01:14:45,814 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product25.cil.c [2019-10-15 01:14:45,825 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:14:45,836 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:14:45,848 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:14:45,900 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:14:45,900 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:14:45,900 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:14:45,900 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:14:45,904 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:14:45,904 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:14:45,904 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:14:45,905 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:14:45,945 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states. [2019-10-15 01:14:45,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-15 01:14:45,982 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:45,989 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:45,993 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:46,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:46,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1647259373, now seen corresponding path program 1 times [2019-10-15 01:14:46,011 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:46,012 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310627613] [2019-10-15 01:14:46,012 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:46,012 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:46,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:46,742 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:14:46,742 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310627613] [2019-10-15 01:14:46,743 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:46,744 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:14:46,744 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012613084] [2019-10-15 01:14:46,749 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:14:46,751 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:46,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:14:46,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:14:46,768 INFO L87 Difference]: Start difference. First operand 599 states. Second operand 2 states. [2019-10-15 01:14:46,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:46,878 INFO L93 Difference]: Finished difference Result 884 states and 1194 transitions. [2019-10-15 01:14:46,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:14:46,880 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 179 [2019-10-15 01:14:46,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:46,916 INFO L225 Difference]: With dead ends: 884 [2019-10-15 01:14:46,917 INFO L226 Difference]: Without dead ends: 570 [2019-10-15 01:14:46,928 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 01:14:46,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2019-10-15 01:14:47,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2019-10-15 01:14:47,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2019-10-15 01:14:47,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 774 transitions. [2019-10-15 01:14:47,058 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 774 transitions. Word has length 179 [2019-10-15 01:14:47,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:47,063 INFO L462 AbstractCegarLoop]: Abstraction has 570 states and 774 transitions. [2019-10-15 01:14:47,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:14:47,064 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 774 transitions. [2019-10-15 01:14:47,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-15 01:14:47,074 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:47,076 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:47,076 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:47,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:47,077 INFO L82 PathProgramCache]: Analyzing trace with hash 833139246, now seen corresponding path program 1 times [2019-10-15 01:14:47,077 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:47,077 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814410010] [2019-10-15 01:14:47,078 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:47,078 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:47,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:47,394 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:14:47,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814410010] [2019-10-15 01:14:47,395 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:47,395 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:47,395 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988825681] [2019-10-15 01:14:47,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:47,399 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:47,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:47,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:47,400 INFO L87 Difference]: Start difference. First operand 570 states and 774 transitions. Second operand 3 states. [2019-10-15 01:14:47,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:47,494 INFO L93 Difference]: Finished difference Result 867 states and 1156 transitions. [2019-10-15 01:14:47,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:47,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-15 01:14:47,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:47,501 INFO L225 Difference]: With dead ends: 867 [2019-10-15 01:14:47,501 INFO L226 Difference]: Without dead ends: 573 [2019-10-15 01:14:47,503 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 01:14:47,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2019-10-15 01:14:47,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 572. [2019-10-15 01:14:47,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-10-15 01:14:47,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 776 transitions. [2019-10-15 01:14:47,549 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 776 transitions. Word has length 180 [2019-10-15 01:14:47,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:47,549 INFO L462 AbstractCegarLoop]: Abstraction has 572 states and 776 transitions. [2019-10-15 01:14:47,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:47,550 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 776 transitions. [2019-10-15 01:14:47,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-15 01:14:47,556 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:47,556 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:47,557 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:47,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:47,559 INFO L82 PathProgramCache]: Analyzing trace with hash 2116903770, now seen corresponding path program 1 times [2019-10-15 01:14:47,559 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:47,559 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349655670] [2019-10-15 01:14:47,559 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:47,559 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:47,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:47,749 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:14:47,749 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349655670] [2019-10-15 01:14:47,750 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:47,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:47,750 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734474595] [2019-10-15 01:14:47,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:47,751 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:47,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:47,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:47,752 INFO L87 Difference]: Start difference. First operand 572 states and 776 transitions. Second operand 3 states. [2019-10-15 01:14:47,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:47,794 INFO L93 Difference]: Finished difference Result 1122 states and 1553 transitions. [2019-10-15 01:14:47,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:47,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-15 01:14:47,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:47,800 INFO L225 Difference]: With dead ends: 1122 [2019-10-15 01:14:47,800 INFO L226 Difference]: Without dead ends: 615 [2019-10-15 01:14:47,802 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 01:14:47,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-10-15 01:14:47,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 614. [2019-10-15 01:14:47,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2019-10-15 01:14:47,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 848 transitions. [2019-10-15 01:14:47,831 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 848 transitions. Word has length 186 [2019-10-15 01:14:47,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:47,832 INFO L462 AbstractCegarLoop]: Abstraction has 614 states and 848 transitions. [2019-10-15 01:14:47,832 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:47,832 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 848 transitions. [2019-10-15 01:14:47,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-15 01:14:47,836 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:47,836 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:47,837 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:47,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:47,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1487987625, now seen corresponding path program 1 times [2019-10-15 01:14:47,837 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:47,838 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491122438] [2019-10-15 01:14:47,838 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:47,838 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:47,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:48,216 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-10-15 01:14:48,367 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:14:48,368 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491122438] [2019-10-15 01:14:48,368 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:48,368 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 01:14:48,369 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730892645] [2019-10-15 01:14:48,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 01:14:48,371 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:48,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 01:14:48,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:14:48,372 INFO L87 Difference]: Start difference. First operand 614 states and 848 transitions. Second operand 12 states. [2019-10-15 01:15:01,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:01,448 INFO L93 Difference]: Finished difference Result 3088 states and 4236 transitions. [2019-10-15 01:15:01,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-15 01:15:01,449 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 187 [2019-10-15 01:15:01,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:01,473 INFO L225 Difference]: With dead ends: 3088 [2019-10-15 01:15:01,473 INFO L226 Difference]: Without dead ends: 2795 [2019-10-15 01:15:01,479 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=377, Invalid=1515, Unknown=0, NotChecked=0, Total=1892 [2019-10-15 01:15:01,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2019-10-15 01:15:01,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2770. [2019-10-15 01:15:01,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2770 states. [2019-10-15 01:15:01,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3734 transitions. [2019-10-15 01:15:01,669 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3734 transitions. Word has length 187 [2019-10-15 01:15:01,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:01,672 INFO L462 AbstractCegarLoop]: Abstraction has 2770 states and 3734 transitions. [2019-10-15 01:15:01,672 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 01:15:01,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3734 transitions. [2019-10-15 01:15:01,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-15 01:15:01,677 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:01,677 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:15:01,678 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:01,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:01,678 INFO L82 PathProgramCache]: Analyzing trace with hash 2084170501, now seen corresponding path program 1 times [2019-10-15 01:15:01,678 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:01,679 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507349826] [2019-10-15 01:15:01,679 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:01,679 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:01,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:02,057 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:15:02,058 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507349826] [2019-10-15 01:15:02,058 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:02,058 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:15:02,058 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523308260] [2019-10-15 01:15:02,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:15:02,060 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:02,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:15:02,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:15:02,060 INFO L87 Difference]: Start difference. First operand 2770 states and 3734 transitions. Second operand 18 states. [2019-10-15 01:15:02,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:02,561 INFO L93 Difference]: Finished difference Result 5003 states and 6784 transitions. [2019-10-15 01:15:02,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:15:02,562 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 188 [2019-10-15 01:15:02,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:02,589 INFO L225 Difference]: With dead ends: 5003 [2019-10-15 01:15:02,590 INFO L226 Difference]: Without dead ends: 2536 [2019-10-15 01:15:02,600 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:15:02,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2019-10-15 01:15:02,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 2534. [2019-10-15 01:15:02,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2534 states. [2019-10-15 01:15:02,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2534 states to 2534 states and 3415 transitions. [2019-10-15 01:15:02,716 INFO L78 Accepts]: Start accepts. Automaton has 2534 states and 3415 transitions. Word has length 188 [2019-10-15 01:15:02,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:02,718 INFO L462 AbstractCegarLoop]: Abstraction has 2534 states and 3415 transitions. [2019-10-15 01:15:02,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:15:02,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2534 states and 3415 transitions. [2019-10-15 01:15:02,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-15 01:15:02,722 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:02,723 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:15:02,723 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:02,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:02,723 INFO L82 PathProgramCache]: Analyzing trace with hash -87101593, now seen corresponding path program 1 times [2019-10-15 01:15:02,724 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:02,724 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220082061] [2019-10-15 01:15:02,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:02,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:02,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:04,873 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:15:04,874 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220082061] [2019-10-15 01:15:04,874 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793229723] [2019-10-15 01:15:04,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:05,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 2895 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:05,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:06,018 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:15:06,018 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:06,411 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:06,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:06,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:06,872 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:15:06,873 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:06,873 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [51, 9] total 63 [2019-10-15 01:15:06,873 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040521039] [2019-10-15 01:15:06,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:15:06,874 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:06,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:15:06,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=3748, Unknown=0, NotChecked=0, Total=3906 [2019-10-15 01:15:06,876 INFO L87 Difference]: Start difference. First operand 2534 states and 3415 transitions. Second operand 9 states. [2019-10-15 01:15:09,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:09,386 INFO L93 Difference]: Finished difference Result 5046 states and 6810 transitions. [2019-10-15 01:15:09,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:15:09,387 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 197 [2019-10-15 01:15:09,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:09,406 INFO L225 Difference]: With dead ends: 5046 [2019-10-15 01:15:09,406 INFO L226 Difference]: Without dead ends: 2548 [2019-10-15 01:15:09,416 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 382 SyntacticMatches, 7 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=185, Invalid=4105, Unknown=0, NotChecked=0, Total=4290 [2019-10-15 01:15:09,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2019-10-15 01:15:09,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2548. [2019-10-15 01:15:09,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2548 states. [2019-10-15 01:15:09,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3433 transitions. [2019-10-15 01:15:09,552 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3433 transitions. Word has length 197 [2019-10-15 01:15:09,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:09,553 INFO L462 AbstractCegarLoop]: Abstraction has 2548 states and 3433 transitions. [2019-10-15 01:15:09,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:15:09,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3433 transitions. [2019-10-15 01:15:09,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:15:09,559 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:09,560 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:15:09,769 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:09,770 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:09,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:09,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1768881551, now seen corresponding path program 1 times [2019-10-15 01:15:09,770 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:09,771 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981781008] [2019-10-15 01:15:09,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:09,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:09,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:12,003 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 01:15:12,004 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981781008] [2019-10-15 01:15:12,004 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259512038] [2019-10-15 01:15:12,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:12,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:15:12,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:12,843 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:15:12,843 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:13,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:13,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:13,359 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:15:13,360 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:13,360 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [49, 7] total 57 [2019-10-15 01:15:13,360 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182965696] [2019-10-15 01:15:13,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:15:13,361 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:13,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:15:13,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=3057, Unknown=0, NotChecked=0, Total=3192 [2019-10-15 01:15:13,363 INFO L87 Difference]: Start difference. First operand 2548 states and 3433 transitions. Second operand 7 states. [2019-10-15 01:15:14,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:14,935 INFO L93 Difference]: Finished difference Result 5047 states and 6814 transitions. [2019-10-15 01:15:14,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:15:14,935 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2019-10-15 01:15:14,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:14,951 INFO L225 Difference]: With dead ends: 5047 [2019-10-15 01:15:14,951 INFO L226 Difference]: Without dead ends: 2550 [2019-10-15 01:15:14,961 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 389 SyntacticMatches, 6 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=153, Invalid=3269, Unknown=0, NotChecked=0, Total=3422 [2019-10-15 01:15:14,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states.