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_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:15:19,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:15:19,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:15:19,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:15:19,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:15:19,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:15:19,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:15:19,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:15:19,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:15:19,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:15:19,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:15:19,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:15:19,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:15:19,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:15:19,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:15:19,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:15:19,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:15:19,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:15:19,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:15:19,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:15:19,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:15:19,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:15:19,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:15:19,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:15:19,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:15:19,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:15:19,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:15:19,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:15:19,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:15:19,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:15:19,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:15:19,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:15:19,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:15:19,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:15:19,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:15:19,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:15:19,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:15:19,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:15:19,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:15:19,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:15:19,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:15:19,464 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 21:15:19,485 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:15:19,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:15:19,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:15:19,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:15:19,487 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:15:19,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:15:19,487 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:15:19,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:15:19,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:15:19,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:15:19,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:15:19,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:15:19,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:15:19,490 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:15:19,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:15:19,490 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:15:19,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:15:19,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:15:19,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:15:19,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:15:19,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:15:19,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:15:19,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:15:19,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:15:19,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:15:19,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:15:19,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:15:19,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:15:19,493 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 21:15:19,758 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:15:19,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:15:19,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:15:19,775 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:15:19,775 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:15:19,776 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product17.cil.c [2019-10-13 21:15:19,842 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649cd30db/41ea4284a2c8487a97e540a1896dad60/FLAG757bd2f9d [2019-10-13 21:15:20,449 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:15:20,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product17.cil.c [2019-10-13 21:15:20,476 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649cd30db/41ea4284a2c8487a97e540a1896dad60/FLAG757bd2f9d [2019-10-13 21:15:20,643 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649cd30db/41ea4284a2c8487a97e540a1896dad60 [2019-10-13 21:15:20,653 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:15:20,655 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:15:20,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:15:20,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:15:20,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:15:20,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:15:20" (1/1) ... [2019-10-13 21:15:20,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d9af163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:20, skipping insertion in model container [2019-10-13 21:15:20,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:15:20" (1/1) ... [2019-10-13 21:15:20,669 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:15:20,740 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:15:21,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:15:21,441 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:15:21,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:15:21,685 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:15:21,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:21 WrapperNode [2019-10-13 21:15:21,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:15:21,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:15:21,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:15:21,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:15:21,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:21" (1/1) ... [2019-10-13 21:15:21,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:21" (1/1) ... [2019-10-13 21:15:21,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:21" (1/1) ... [2019-10-13 21:15:21,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:21" (1/1) ... [2019-10-13 21:15:21,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:21" (1/1) ... [2019-10-13 21:15:21,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:21" (1/1) ... [2019-10-13 21:15:21,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:21" (1/1) ... [2019-10-13 21:15:21,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:15:21,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:15:21,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:15:21,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:15:21,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:21" (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 21:15:21,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:15:21,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:15:21,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:15:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:15:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:15:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:15:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:15:21,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:15:21,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:15:21,974 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:15:21,974 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:15:21,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:15:21,975 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:15:21,975 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:15:21,976 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:15:21,976 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:15:21,976 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:15:21,976 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:15:21,977 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:15:21,977 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:15:21,977 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:15:21,977 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:15:21,977 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:15:21,978 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:15:21,978 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:15:21,978 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:15:21,978 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:15:21,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:15:21,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:15:21,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:15:21,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:15:21,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:15:21,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:15:21,980 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:15:21,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:15:21,980 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:15:21,981 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:15:21,981 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:15:21,981 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:15:21,981 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:15:21,981 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:15:21,982 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:15:21,982 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:15:21,982 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:15:21,982 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:15:21,982 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:15:21,982 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:15:21,983 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:15:21,983 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:15:21,983 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:15:21,983 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:15:21,983 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:15:21,983 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:15:21,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 21:15:21,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 21:15:21,984 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:15:21,984 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:15:21,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:15:21,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:15:21,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:15:21,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:15:21,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:15:21,985 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:15:21,986 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:15:21,986 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:15:21,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:15:21,986 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:15:21,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:15:21,986 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:15:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:15:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:15:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:15:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:15:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:15:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:15:21,988 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:15:21,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:15:21,988 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:15:21,988 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:15:21,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:15:21,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:15:21,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:15:21,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:15:21,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:15:21,990 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:15:21,991 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 21:15:21,991 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:15:21,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:15:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:15:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:15:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:15:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:15:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:15:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:15:21,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:15:21,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:15:21,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:15:21,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:15:21,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:15:21,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:15:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:15:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:15:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:15:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:15:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:15:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:15:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:15:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:15:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:15:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:15:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:15:21,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:15:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:15:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:15:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:15:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:15:21,998 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:15:21,998 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:15:21,998 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:15:21,999 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:15:21,999 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:15:21,999 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:15:21,999 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:15:22,000 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:15:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:15:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:15:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:15:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:15:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:15:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:15:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:15:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:15:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:15:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:15:22,003 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:15:22,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:15:22,004 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:15:22,007 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:15:22,008 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:15:22,008 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:15:22,008 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:15:22,009 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:15:22,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:15:22,009 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:15:22,017 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:15:22,017 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:15:22,017 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:15:22,017 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:15:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:15:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:15:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:15:22,018 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:15:22,019 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:15:22,019 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:15:22,019 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:15:22,019 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:15:22,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:15:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:15:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:15:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:15:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:15:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:15:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:15:22,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:15:22,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:15:22,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:15:22,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:15:22,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:15:22,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:15:22,021 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:15:22,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:15:22,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:15:22,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:15:22,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:15:22,022 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:15:22,022 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:15:22,022 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:15:22,022 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:15:22,022 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:15:22,022 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:15:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:15:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:15:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:15:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:15:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:15:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:15:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:15:22,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:15:22,024 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:15:22,024 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:15:22,024 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:15:22,024 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:15:22,024 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:15:22,024 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:15:22,024 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:15:22,024 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:15:22,025 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:15:22,025 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:15:22,025 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:15:22,025 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:15:22,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 21:15:22,025 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:15:22,025 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:15:22,025 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:15:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 21:15:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:15:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:15:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:15:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:15:22,026 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:15:22,027 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:15:22,028 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:15:22,028 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:15:22,028 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:15:22,028 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:15:22,028 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:15:22,029 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:15:22,029 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:15:22,029 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:15:22,029 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:15:22,029 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:15:22,029 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:15:22,029 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:15:22,029 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:15:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:15:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 21:15:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:15:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:15:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:15:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:15:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:15:22,030 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:15:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:15:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:15:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:15:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:15:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:15:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:15:22,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:15:24,519 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:15:24,519 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:15:24,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:15:24 BoogieIcfgContainer [2019-10-13 21:15:24,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:15:24,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:15:24,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:15:24,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:15:24,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:15:20" (1/3) ... [2019-10-13 21:15:24,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401343f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:15:24, skipping insertion in model container [2019-10-13 21:15:24,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:21" (2/3) ... [2019-10-13 21:15:24,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401343f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:15:24, skipping insertion in model container [2019-10-13 21:15:24,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:15:24" (3/3) ... [2019-10-13 21:15:24,529 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product17.cil.c [2019-10-13 21:15:24,538 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:15:24,547 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:15:24,558 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:15:24,586 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:15:24,587 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:15:24,587 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:15:24,587 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:15:24,587 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:15:24,587 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:15:24,587 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:15:24,588 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:15:24,618 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states. [2019-10-13 21:15:24,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-13 21:15:24,654 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:24,656 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] [2019-10-13 21:15:24,658 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:24,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:24,664 INFO L82 PathProgramCache]: Analyzing trace with hash 219743261, now seen corresponding path program 1 times [2019-10-13 21:15:24,674 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:24,675 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032855712] [2019-10-13 21:15:24,677 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:24,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:24,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:25,348 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 21:15:25,349 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032855712] [2019-10-13 21:15:25,350 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:25,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:15:25,351 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729263825] [2019-10-13 21:15:25,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:15:25,359 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:25,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:15:25,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:15:25,376 INFO L87 Difference]: Start difference. First operand 552 states. Second operand 2 states. [2019-10-13 21:15:25,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:25,461 INFO L93 Difference]: Finished difference Result 757 states and 1036 transitions. [2019-10-13 21:15:25,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:15:25,463 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 179 [2019-10-13 21:15:25,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:25,494 INFO L225 Difference]: With dead ends: 757 [2019-10-13 21:15:25,495 INFO L226 Difference]: Without dead ends: 501 [2019-10-13 21:15:25,505 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 21:15:25,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-10-13 21:15:25,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2019-10-13 21:15:25,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2019-10-13 21:15:25,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 688 transitions. [2019-10-13 21:15:25,638 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 688 transitions. Word has length 179 [2019-10-13 21:15:25,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:25,642 INFO L462 AbstractCegarLoop]: Abstraction has 501 states and 688 transitions. [2019-10-13 21:15:25,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:15:25,642 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 688 transitions. [2019-10-13 21:15:25,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-13 21:15:25,652 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:25,652 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] [2019-10-13 21:15:25,652 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:25,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:25,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1078894523, now seen corresponding path program 1 times [2019-10-13 21:15:25,653 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:25,653 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542595995] [2019-10-13 21:15:25,654 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:25,654 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:25,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:25,890 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 21:15:25,890 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542595995] [2019-10-13 21:15:25,891 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:25,891 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:25,894 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505655586] [2019-10-13 21:15:25,896 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:25,896 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:25,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:25,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:25,897 INFO L87 Difference]: Start difference. First operand 501 states and 688 transitions. Second operand 3 states. [2019-10-13 21:15:25,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:25,958 INFO L93 Difference]: Finished difference Result 740 states and 998 transitions. [2019-10-13 21:15:25,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:25,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-13 21:15:25,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:25,966 INFO L225 Difference]: With dead ends: 740 [2019-10-13 21:15:25,966 INFO L226 Difference]: Without dead ends: 504 [2019-10-13 21:15:25,971 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 21:15:25,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2019-10-13 21:15:25,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 503. [2019-10-13 21:15:25,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2019-10-13 21:15:26,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 690 transitions. [2019-10-13 21:15:26,002 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 690 transitions. Word has length 180 [2019-10-13 21:15:26,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:26,003 INFO L462 AbstractCegarLoop]: Abstraction has 503 states and 690 transitions. [2019-10-13 21:15:26,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:26,003 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 690 transitions. [2019-10-13 21:15:26,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-13 21:15:26,008 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:26,008 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] [2019-10-13 21:15:26,009 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:26,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:26,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1911048495, now seen corresponding path program 1 times [2019-10-13 21:15:26,009 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:26,010 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505343895] [2019-10-13 21:15:26,010 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:26,010 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:26,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:26,237 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 21:15:26,237 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505343895] [2019-10-13 21:15:26,237 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:26,238 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:26,238 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573404477] [2019-10-13 21:15:26,239 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:26,241 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:26,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:26,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:26,241 INFO L87 Difference]: Start difference. First operand 503 states and 690 transitions. Second operand 3 states. [2019-10-13 21:15:26,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:26,294 INFO L93 Difference]: Finished difference Result 982 states and 1378 transitions. [2019-10-13 21:15:26,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:26,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-13 21:15:26,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:26,303 INFO L225 Difference]: With dead ends: 982 [2019-10-13 21:15:26,303 INFO L226 Difference]: Without dead ends: 544 [2019-10-13 21:15:26,306 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 21:15:26,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2019-10-13 21:15:26,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 543. [2019-10-13 21:15:26,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2019-10-13 21:15:26,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 759 transitions. [2019-10-13 21:15:26,357 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 759 transitions. Word has length 186 [2019-10-13 21:15:26,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:26,358 INFO L462 AbstractCegarLoop]: Abstraction has 543 states and 759 transitions. [2019-10-13 21:15:26,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:26,358 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 759 transitions. [2019-10-13 21:15:26,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-13 21:15:26,367 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:26,368 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] [2019-10-13 21:15:26,368 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:26,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:26,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1885803783, now seen corresponding path program 1 times [2019-10-13 21:15:26,368 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:26,369 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789830745] [2019-10-13 21:15:26,369 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:26,369 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:26,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:26,755 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:15:26,755 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789830745] [2019-10-13 21:15:26,755 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:26,756 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 21:15:26,756 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741212715] [2019-10-13 21:15:26,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 21:15:26,757 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:26,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 21:15:26,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-10-13 21:15:26,758 INFO L87 Difference]: Start difference. First operand 543 states and 759 transitions. Second operand 12 states. [2019-10-13 21:15:37,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:37,590 INFO L93 Difference]: Finished difference Result 2495 states and 3490 transitions. [2019-10-13 21:15:37,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-13 21:15:37,591 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 187 [2019-10-13 21:15:37,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:37,620 INFO L225 Difference]: With dead ends: 2495 [2019-10-13 21:15:37,620 INFO L226 Difference]: Without dead ends: 2260 [2019-10-13 21:15:37,625 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=377, Invalid=1515, Unknown=0, NotChecked=0, Total=1892 [2019-10-13 21:15:37,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2019-10-13 21:15:37,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2235. [2019-10-13 21:15:37,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2019-10-13 21:15:37,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 3060 transitions. [2019-10-13 21:15:37,823 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 3060 transitions. Word has length 187 [2019-10-13 21:15:37,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:37,824 INFO L462 AbstractCegarLoop]: Abstraction has 2235 states and 3060 transitions. [2019-10-13 21:15:37,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 21:15:37,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 3060 transitions. [2019-10-13 21:15:37,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-13 21:15:37,834 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:37,835 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] [2019-10-13 21:15:37,835 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:37,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:37,836 INFO L82 PathProgramCache]: Analyzing trace with hash 380936231, now seen corresponding path program 1 times [2019-10-13 21:15:37,836 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:37,837 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136662538] [2019-10-13 21:15:37,837 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:37,837 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:37,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:38,253 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:15:38,254 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136662538] [2019-10-13 21:15:38,254 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:38,254 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:15:38,254 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468306534] [2019-10-13 21:15:38,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:15:38,255 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:38,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:15:38,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:15:38,256 INFO L87 Difference]: Start difference. First operand 2235 states and 3060 transitions. Second operand 18 states. [2019-10-13 21:15:38,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:38,681 INFO L93 Difference]: Finished difference Result 3941 states and 5444 transitions. [2019-10-13 21:15:38,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:15:38,682 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 188 [2019-10-13 21:15:38,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:38,702 INFO L225 Difference]: With dead ends: 3941 [2019-10-13 21:15:38,703 INFO L226 Difference]: Without dead ends: 1996 [2019-10-13 21:15:38,711 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 [2019-10-13 21:15:38,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2019-10-13 21:15:38,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1994. [2019-10-13 21:15:38,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2019-10-13 21:15:38,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2733 transitions. [2019-10-13 21:15:38,814 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2733 transitions. Word has length 188 [2019-10-13 21:15:38,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:38,816 INFO L462 AbstractCegarLoop]: Abstraction has 1994 states and 2733 transitions. [2019-10-13 21:15:38,816 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:15:38,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2733 transitions. [2019-10-13 21:15:38,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-13 21:15:38,821 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:38,821 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] [2019-10-13 21:15:38,822 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:38,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:38,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1635559321, now seen corresponding path program 1 times [2019-10-13 21:15:38,822 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:38,822 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018304344] [2019-10-13 21:15:38,823 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:38,823 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:38,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:40,845 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 21:15:40,845 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018304344] [2019-10-13 21:15:40,845 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552625604] [2019-10-13 21:15:40,846 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 [2019-10-13 21:15:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:41,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 2725 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:15:41,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:15:41,769 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:15:41,769 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:15:42,241 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:15:42,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:15:42,500 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:15:42,663 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:15:42,664 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:15:42,664 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [48, 9] total 60 [2019-10-13 21:15:42,664 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951697586] [2019-10-13 21:15:42,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:15:42,665 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:42,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:15:42,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=3371, Unknown=0, NotChecked=0, Total=3540 [2019-10-13 21:15:42,667 INFO L87 Difference]: Start difference. First operand 1994 states and 2733 transitions. Second operand 9 states. [2019-10-13 21:15:44,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:44,075 INFO L93 Difference]: Finished difference Result 3966 states and 5446 transitions. [2019-10-13 21:15:44,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:15:44,076 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 197 [2019-10-13 21:15:44,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:44,089 INFO L225 Difference]: With dead ends: 3966 [2019-10-13 21:15:44,089 INFO L226 Difference]: Without dead ends: 2008 [2019-10-13 21:15:44,096 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 381 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=196, Invalid=3710, Unknown=0, NotChecked=0, Total=3906 [2019-10-13 21:15:44,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2019-10-13 21:15:44,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 2008. [2019-10-13 21:15:44,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2019-10-13 21:15:44,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2751 transitions. [2019-10-13 21:15:44,187 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2751 transitions. Word has length 197 [2019-10-13 21:15:44,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:44,188 INFO L462 AbstractCegarLoop]: Abstraction has 2008 states and 2751 transitions. [2019-10-13 21:15:44,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:15:44,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2751 transitions. [2019-10-13 21:15:44,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:15:44,192 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:44,192 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] [2019-10-13 21:15:44,400 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:15:44,401 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:44,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:44,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1189577975, now seen corresponding path program 1 times [2019-10-13 21:15:44,401 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:44,402 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103509044] [2019-10-13 21:15:44,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:44,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:44,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:46,113 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 21:15:46,113 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103509044] [2019-10-13 21:15:46,113 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042046248] [2019-10-13 21:15:46,113 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 [2019-10-13 21:15:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:46,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:15:46,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:15:46,883 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:15:46,883 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:15:47,256 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:15:47,376 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:15:47,431 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:15:47,432 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:15:47,432 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [46, 7] total 54 [2019-10-13 21:15:47,432 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875374875] [2019-10-13 21:15:47,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:15:47,433 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:47,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:15:47,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=2716, Unknown=0, NotChecked=0, Total=2862 [2019-10-13 21:15:47,435 INFO L87 Difference]: Start difference. First operand 2008 states and 2751 transitions. Second operand 7 states. [2019-10-13 21:15:48,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:48,425 INFO L93 Difference]: Finished difference Result 3967 states and 5450 transitions. [2019-10-13 21:15:48,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:15:48,426 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2019-10-13 21:15:48,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:48,437 INFO L225 Difference]: With dead ends: 3967 [2019-10-13 21:15:48,438 INFO L226 Difference]: Without dead ends: 2010 [2019-10-13 21:15:48,445 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 388 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=164, Invalid=2916, Unknown=0, NotChecked=0, Total=3080 [2019-10-13 21:15:48,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2010 states. [2019-10-13 21:15:48,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2010 to 2010. [2019-10-13 21:15:48,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2010 states. [2019-10-13 21:15:48,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 2754 transitions. [2019-10-13 21:15:48,530 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 2754 transitions. Word has length 198 [2019-10-13 21:15:48,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:48,531 INFO L462 AbstractCegarLoop]: Abstraction has 2010 states and 2754 transitions. [2019-10-13 21:15:48,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:15:48,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 2754 transitions. [2019-10-13 21:15:48,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-13 21:15:48,535 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:48,535 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:15:48,743 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:15:48,743 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:48,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:48,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1181635200, now seen corresponding path program 1 times [2019-10-13 21:15:48,744 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:48,744 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991957973] [2019-10-13 21:15:48,744 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:48,745 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:48,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:50,342 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-13 21:15:50,343 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991957973] [2019-10-13 21:15:50,343 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:50,343 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2019-10-13 21:15:50,343 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120004560] [2019-10-13 21:15:50,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-10-13 21:15:50,346 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:50,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-10-13 21:15:50,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1543, Unknown=0, NotChecked=0, Total=1640 [2019-10-13 21:15:50,348 INFO L87 Difference]: Start difference. First operand 2010 states and 2754 transitions. Second operand 41 states.