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_spec1_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:14:36,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:14:36,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:14:36,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:14:36,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:14:36,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:14:36,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:14:36,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:14:36,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:14:36,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:14:36,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:14:36,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:14:36,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:14:36,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:14:36,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:14:36,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:14:36,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:14:36,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:14:36,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:14:36,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:14:36,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:14:36,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:14:36,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:14:36,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:14:36,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:14:36,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:14:36,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:14:36,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:14:36,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:14:36,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:14:36,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:14:36,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:14:36,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:14:36,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:14:36,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:14:36,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:14:36,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:14:36,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:14:36,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:14:36,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:14:36,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:14:36,871 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:14:36,890 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:14:36,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:14:36,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:14:36,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:14:36,892 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:14:36,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:14:36,892 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:14:36,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:14:36,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:14:36,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:14:36,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:14:36,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:14:36,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:14:36,894 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:14:36,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:14:36,894 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:14:36,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:14:36,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:14:36,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:14:36,895 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:14:36,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:14:36,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:14:36,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:14:36,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:14:36,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:14:36,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:14:36,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:14:36,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:14:36,897 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 [2019-10-13 21:14:37,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:14:37,242 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:14:37,245 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:14:37,247 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:14:37,247 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:14:37,248 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product34.cil.c [2019-10-13 21:14:37,321 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1ab3ff20/dd9c6f7945494ecc997c62baffdc44cd/FLAG35fb68715 [2019-10-13 21:14:37,923 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:14:37,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product34.cil.c [2019-10-13 21:14:37,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1ab3ff20/dd9c6f7945494ecc997c62baffdc44cd/FLAG35fb68715 [2019-10-13 21:14:38,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1ab3ff20/dd9c6f7945494ecc997c62baffdc44cd [2019-10-13 21:14:38,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:14:38,176 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:14:38,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:14:38,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:14:38,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:14:38,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:14:38" (1/1) ... [2019-10-13 21:14:38,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e394a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:38, skipping insertion in model container [2019-10-13 21:14:38,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:14:38" (1/1) ... [2019-10-13 21:14:38,194 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:14:38,279 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:14:38,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:14:38,989 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:14:39,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:14:39,311 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:14:39,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:39 WrapperNode [2019-10-13 21:14:39,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:14:39,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:14:39,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:14:39,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:14:39,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:39" (1/1) ... [2019-10-13 21:14:39,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:39" (1/1) ... [2019-10-13 21:14:39,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:39" (1/1) ... [2019-10-13 21:14:39,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:39" (1/1) ... [2019-10-13 21:14:39,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:39" (1/1) ... [2019-10-13 21:14:39,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:39" (1/1) ... [2019-10-13 21:14:39,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:39" (1/1) ... [2019-10-13 21:14:39,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:14:39,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:14:39,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:14:39,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:14:39,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:14:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:14:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:14:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:14:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 21:14:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:14:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:14:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:14:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:14:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:14:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:14:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:14:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:14:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:14:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:14:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:14:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:14:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:14:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:14:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:14:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:14:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:14:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:14:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:14:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:14:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:14:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:14:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:14:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:14:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:14:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:14:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:14:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:14:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:14:39,606 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:14:39,606 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:14:39,606 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:14:39,606 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:14:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:14:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:14:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:14:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:14:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:14:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:14:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:14:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:14:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:14:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:14:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:14:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:14:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:14:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:14:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:14:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:14:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:14:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:14:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:14:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:14:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:14:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:14:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:14:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:14:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:14:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:14:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:14:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:14:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:14:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:14:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:14:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:14:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:14:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 21:14:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:14:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:14:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:14:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:14:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:14:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:14:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:14:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:14:39,614 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:14:39,615 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:14:39,615 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:14:39,615 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:14:39,615 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:14:39,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:14:39,616 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:14:39,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:14:39,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:14:39,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:14:39,617 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:14:39,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:14:39,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:14:39,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:14:39,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:14:39,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:14:39,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:14:39,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:14:39,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:14:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:14:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:14:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:14:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:14:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:14:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:14:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:14:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:14:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:14:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:14:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:14:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:14:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:14:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:14:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:14:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:14:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:14:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:14:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:14:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:14:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:14:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:14:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:14:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:14:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:14:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 21:14:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:14:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:14:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:14:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:14:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:14:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:14:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:14:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:14:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:14:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:14:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:14:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:14:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:14:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:14:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:14:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:14:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:14:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:14:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:14:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:14:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:14:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:14:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:14:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:14:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:14:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:14:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:14:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:14:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:14:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:14:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:14:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:14:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:14:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:14:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:14:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:14:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:14:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:14:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:14:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:14:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:14:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:14:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:14:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:14:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:14:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:14:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:14:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:14:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:14:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:14:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:14:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:14:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:14:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:14:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:14:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:14:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:14:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:14:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:14:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:14:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:14:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:14:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:14:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:14:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:14:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:14:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:14:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:14:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:14:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:14:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:14:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:14:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:14:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:14:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:14:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:14:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:14:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:14:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:14:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:14:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:14:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:14:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:14:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:14:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:14:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:14:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:14:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:14:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:14:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:14:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:14:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:14:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:14:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:14:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:14:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:14:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:14:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:14:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:14:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:14:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:14:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:14:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:14:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:14:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:14:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 21:14:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:14:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:14:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:14:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:14:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:14:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:14:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:14:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:14:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:14:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:14:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:14:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:14:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:14:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:14:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:14:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:14:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:14:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:14:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:14:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:14:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:14:41,920 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:14:41,920 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:14:41,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:14:41 BoogieIcfgContainer [2019-10-13 21:14:41,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:14:41,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:14:41,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:14:41,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:14:41,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:14:38" (1/3) ... [2019-10-13 21:14:41,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68750d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:14:41, skipping insertion in model container [2019-10-13 21:14:41,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:39" (2/3) ... [2019-10-13 21:14:41,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68750d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:14:41, skipping insertion in model container [2019-10-13 21:14:41,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:14:41" (3/3) ... [2019-10-13 21:14:41,932 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product34.cil.c [2019-10-13 21:14:41,942 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:14:41,952 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:14:41,965 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:14:41,996 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:14:41,996 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:14:41,996 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:14:41,996 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:14:41,997 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:14:41,997 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:14:41,998 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:14:41,998 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:14:42,038 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states. [2019-10-13 21:14:42,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-13 21:14:42,068 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:42,069 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] [2019-10-13 21:14:42,071 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:42,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:42,077 INFO L82 PathProgramCache]: Analyzing trace with hash -202467737, now seen corresponding path program 1 times [2019-10-13 21:14:42,088 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:42,088 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896839816] [2019-10-13 21:14:42,088 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:42,089 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:42,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:42,802 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:42,802 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896839816] [2019-10-13 21:14:42,803 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:42,804 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:14:42,804 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138465011] [2019-10-13 21:14:42,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:14:42,811 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:42,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:14:42,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:14:42,830 INFO L87 Difference]: Start difference. First operand 651 states. Second operand 2 states. [2019-10-13 21:14:42,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:42,951 INFO L93 Difference]: Finished difference Result 988 states and 1331 transitions. [2019-10-13 21:14:42,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:14:42,953 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 167 [2019-10-13 21:14:42,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:42,986 INFO L225 Difference]: With dead ends: 988 [2019-10-13 21:14:42,986 INFO L226 Difference]: Without dead ends: 622 [2019-10-13 21:14:42,998 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:14:43,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2019-10-13 21:14:43,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2019-10-13 21:14:43,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2019-10-13 21:14:43,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 844 transitions. [2019-10-13 21:14:43,108 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 844 transitions. Word has length 167 [2019-10-13 21:14:43,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:43,111 INFO L462 AbstractCegarLoop]: Abstraction has 622 states and 844 transitions. [2019-10-13 21:14:43,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:14:43,111 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 844 transitions. [2019-10-13 21:14:43,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-13 21:14:43,116 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:43,116 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] [2019-10-13 21:14:43,116 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:43,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:43,117 INFO L82 PathProgramCache]: Analyzing trace with hash 49592993, now seen corresponding path program 1 times [2019-10-13 21:14:43,117 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:43,117 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960614223] [2019-10-13 21:14:43,118 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:43,118 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:43,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:43,487 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:43,488 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960614223] [2019-10-13 21:14:43,488 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:43,488 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:43,488 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183830909] [2019-10-13 21:14:43,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:43,497 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:43,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:43,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:43,498 INFO L87 Difference]: Start difference. First operand 622 states and 844 transitions. Second operand 3 states. [2019-10-13 21:14:43,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:43,573 INFO L93 Difference]: Finished difference Result 971 states and 1296 transitions. [2019-10-13 21:14:43,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:43,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-10-13 21:14:43,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:43,579 INFO L225 Difference]: With dead ends: 971 [2019-10-13 21:14:43,579 INFO L226 Difference]: Without dead ends: 625 [2019-10-13 21:14:43,582 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:43,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2019-10-13 21:14:43,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 624. [2019-10-13 21:14:43,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2019-10-13 21:14:43,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 846 transitions. [2019-10-13 21:14:43,624 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 846 transitions. Word has length 168 [2019-10-13 21:14:43,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:43,625 INFO L462 AbstractCegarLoop]: Abstraction has 624 states and 846 transitions. [2019-10-13 21:14:43,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:43,625 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 846 transitions. [2019-10-13 21:14:43,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 21:14:43,632 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:43,632 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] [2019-10-13 21:14:43,632 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:43,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:43,633 INFO L82 PathProgramCache]: Analyzing trace with hash 87065709, now seen corresponding path program 1 times [2019-10-13 21:14:43,633 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:43,633 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107020849] [2019-10-13 21:14:43,633 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:43,634 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:43,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:43,868 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:43,868 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107020849] [2019-10-13 21:14:43,869 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:43,869 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:43,869 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124995353] [2019-10-13 21:14:43,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:43,873 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:43,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:43,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:43,874 INFO L87 Difference]: Start difference. First operand 624 states and 846 transitions. Second operand 3 states. [2019-10-13 21:14:43,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:43,923 INFO L93 Difference]: Finished difference Result 1226 states and 1693 transitions. [2019-10-13 21:14:43,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:43,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-13 21:14:43,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:43,933 INFO L225 Difference]: With dead ends: 1226 [2019-10-13 21:14:43,933 INFO L226 Difference]: Without dead ends: 667 [2019-10-13 21:14:43,935 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:43,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-10-13 21:14:43,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 666. [2019-10-13 21:14:43,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2019-10-13 21:14:43,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 918 transitions. [2019-10-13 21:14:43,981 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 918 transitions. Word has length 174 [2019-10-13 21:14:43,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:43,985 INFO L462 AbstractCegarLoop]: Abstraction has 666 states and 918 transitions. [2019-10-13 21:14:43,985 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:43,985 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 918 transitions. [2019-10-13 21:14:43,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-13 21:14:43,992 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:43,992 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] [2019-10-13 21:14:43,992 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:43,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:43,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1733812049, now seen corresponding path program 1 times [2019-10-13 21:14:43,994 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:43,994 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483395717] [2019-10-13 21:14:43,994 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:43,994 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:43,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:45,593 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 21:14:45,594 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483395717] [2019-10-13 21:14:45,594 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:45,594 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2019-10-13 21:14:45,595 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044847132] [2019-10-13 21:14:45,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-10-13 21:14:45,596 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:45,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-10-13 21:14:45,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1403, Unknown=0, NotChecked=0, Total=1482 [2019-10-13 21:14:45,597 INFO L87 Difference]: Start difference. First operand 666 states and 918 transitions. Second operand 39 states. [2019-10-13 21:14:53,688 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2019-10-13 21:14:58,968 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35