java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:03,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:03,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:03,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:03,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:03,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:03,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:03,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:03,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:03,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:03,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:03,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:03,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:03,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:03,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:03,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:03,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:03,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:03,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:03,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:03,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:03,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:03,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:03,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:03,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:03,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:03,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:03,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:03,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:03,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:03,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:03,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:03,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:03,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:03,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:03,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:03,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:03,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:03,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:03,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:03,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:03,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:16:03,991 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:03,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:03,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:03,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:03,993 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:03,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:03,994 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:03,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:03,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:03,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:03,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:03,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:03,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:03,995 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:03,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:03,995 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:03,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:03,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:03,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:03,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:03,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:03,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:03,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:03,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:03,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:03,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:03,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:03,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:03,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:16:04,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:04,309 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:04,312 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:04,314 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:04,314 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:04,315 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product14.cil.c [2019-10-15 01:16:04,381 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/091e1dddc/4de9ddf0d4c94313b88abf5c842d292a/FLAG7af0809bf [2019-10-15 01:16:05,014 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:05,018 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product14.cil.c [2019-10-15 01:16:05,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/091e1dddc/4de9ddf0d4c94313b88abf5c842d292a/FLAG7af0809bf [2019-10-15 01:16:05,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/091e1dddc/4de9ddf0d4c94313b88abf5c842d292a [2019-10-15 01:16:05,300 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:05,301 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:05,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:05,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:05,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:05,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:05" (1/1) ... [2019-10-15 01:16:05,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9c07c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:05, skipping insertion in model container [2019-10-15 01:16:05,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:05" (1/1) ... [2019-10-15 01:16:05,315 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:05,392 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:06,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:06,178 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:06,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:06,391 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:06,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:06 WrapperNode [2019-10-15 01:16:06,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:06,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:06,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:06,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:06,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:06" (1/1) ... [2019-10-15 01:16:06,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:06" (1/1) ... [2019-10-15 01:16:06,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:06" (1/1) ... [2019-10-15 01:16:06,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:06" (1/1) ... [2019-10-15 01:16:06,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:06" (1/1) ... [2019-10-15 01:16:06,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:06" (1/1) ... [2019-10-15 01:16:06,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:06" (1/1) ... [2019-10-15 01:16:06,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:06,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:06,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:06,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:06,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:06,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:06,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:06,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:06,699 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:06,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:06,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:06,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:06,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:06,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:06,703 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:06,704 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:06,704 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:06,704 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:06,706 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:06,707 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:06,707 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:06,708 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:06,708 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:06,708 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:06,708 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:16:06,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:06,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:06,709 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:06,709 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:06,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:06,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:06,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:06,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:06,711 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:06,711 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:06,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:06,712 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:06,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:06,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:06,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:06,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:06,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:06,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:06,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:06,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:06,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:06,714 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:06,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:06,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:06,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:06,714 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:06,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:06,715 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:06,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:06,715 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:06,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:06,715 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:06,715 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:06,716 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:06,716 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:06,716 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:06,716 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:06,716 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:06,717 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:06,717 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:06,717 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 01:16:06,718 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:06,718 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:06,718 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:06,718 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:06,718 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:06,718 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:06,719 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:06,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:06,719 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:06,720 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:16:06,720 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:06,720 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:06,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:06,720 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:06,721 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:06,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:06,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:06,722 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:06,722 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:06,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:06,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:06,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:06,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:06,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:06,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:06,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:06,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:06,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:16:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:16:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 01:16:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:08,985 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:08,985 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:08,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:08 BoogieIcfgContainer [2019-10-15 01:16:08,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:08,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:08,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:08,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:08,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:05" (1/3) ... [2019-10-15 01:16:08,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ab9f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:08, skipping insertion in model container [2019-10-15 01:16:08,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:06" (2/3) ... [2019-10-15 01:16:08,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ab9f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:08, skipping insertion in model container [2019-10-15 01:16:08,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:08" (3/3) ... [2019-10-15 01:16:08,997 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product14.cil.c [2019-10-15 01:16:09,009 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:09,022 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:09,036 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:09,085 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:09,085 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:09,085 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:09,086 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:09,086 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:09,086 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:09,086 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:09,086 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:09,128 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states. [2019-10-15 01:16:09,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-15 01:16:09,166 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:09,168 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 01:16:09,174 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:09,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:09,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1152105549, now seen corresponding path program 1 times [2019-10-15 01:16:09,193 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:09,193 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931534459] [2019-10-15 01:16:09,194 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:09,194 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:09,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:09,960 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:09,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931534459] [2019-10-15 01:16:09,962 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:09,962 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:16:09,962 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714446536] [2019-10-15 01:16:09,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:16:09,970 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:09,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:16:09,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:09,987 INFO L87 Difference]: Start difference. First operand 525 states. Second operand 2 states. [2019-10-15 01:16:10,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:10,081 INFO L93 Difference]: Finished difference Result 703 states and 971 transitions. [2019-10-15 01:16:10,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:16:10,084 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 185 [2019-10-15 01:16:10,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:10,127 INFO L225 Difference]: With dead ends: 703 [2019-10-15 01:16:10,127 INFO L226 Difference]: Without dead ends: 474 [2019-10-15 01:16:10,140 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:10,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-10-15 01:16:10,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2019-10-15 01:16:10,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2019-10-15 01:16:10,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 657 transitions. [2019-10-15 01:16:10,251 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 657 transitions. Word has length 185 [2019-10-15 01:16:10,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:10,254 INFO L462 AbstractCegarLoop]: Abstraction has 474 states and 657 transitions. [2019-10-15 01:16:10,254 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:16:10,254 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 657 transitions. [2019-10-15 01:16:10,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-15 01:16:10,262 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:10,262 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 01:16:10,262 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:10,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:10,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1212655790, now seen corresponding path program 1 times [2019-10-15 01:16:10,263 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:10,263 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83690042] [2019-10-15 01:16:10,264 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:10,264 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:10,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:10,639 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:10,639 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83690042] [2019-10-15 01:16:10,640 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:10,640 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:10,640 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065990107] [2019-10-15 01:16:10,646 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:10,647 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:10,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:10,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:10,648 INFO L87 Difference]: Start difference. First operand 474 states and 657 transitions. Second operand 3 states. [2019-10-15 01:16:10,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:10,740 INFO L93 Difference]: Finished difference Result 686 states and 936 transitions. [2019-10-15 01:16:10,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:10,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-15 01:16:10,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:10,750 INFO L225 Difference]: With dead ends: 686 [2019-10-15 01:16:10,750 INFO L226 Difference]: Without dead ends: 477 [2019-10-15 01:16:10,753 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:10,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2019-10-15 01:16:10,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 476. [2019-10-15 01:16:10,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2019-10-15 01:16:10,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 659 transitions. [2019-10-15 01:16:10,829 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 659 transitions. Word has length 186 [2019-10-15 01:16:10,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:10,832 INFO L462 AbstractCegarLoop]: Abstraction has 476 states and 659 transitions. [2019-10-15 01:16:10,833 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:10,833 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 659 transitions. [2019-10-15 01:16:10,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:16:10,842 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:10,843 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:10,843 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:10,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:10,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1634845758, now seen corresponding path program 1 times [2019-10-15 01:16:10,844 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:10,844 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208693022] [2019-10-15 01:16:10,845 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:10,845 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:10,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:11,145 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:11,146 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208693022] [2019-10-15 01:16:11,146 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:11,146 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:11,146 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669175379] [2019-10-15 01:16:11,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:11,151 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:11,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:11,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:11,152 INFO L87 Difference]: Start difference. First operand 476 states and 659 transitions. Second operand 3 states. [2019-10-15 01:16:11,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:11,200 INFO L93 Difference]: Finished difference Result 928 states and 1316 transitions. [2019-10-15 01:16:11,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:11,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-15 01:16:11,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:11,209 INFO L225 Difference]: With dead ends: 928 [2019-10-15 01:16:11,209 INFO L226 Difference]: Without dead ends: 517 [2019-10-15 01:16:11,212 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:11,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2019-10-15 01:16:11,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 516. [2019-10-15 01:16:11,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2019-10-15 01:16:11,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 728 transitions. [2019-10-15 01:16:11,246 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 728 transitions. Word has length 192 [2019-10-15 01:16:11,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:11,248 INFO L462 AbstractCegarLoop]: Abstraction has 516 states and 728 transitions. [2019-10-15 01:16:11,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:11,248 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 728 transitions. [2019-10-15 01:16:11,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-15 01:16:11,256 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:11,257 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:11,257 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:11,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:11,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1046878051, now seen corresponding path program 1 times [2019-10-15 01:16:11,258 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:11,258 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41311741] [2019-10-15 01:16:11,258 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:11,258 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:11,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:11,692 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:11,693 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41311741] [2019-10-15 01:16:11,693 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:11,693 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:11,694 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339797398] [2019-10-15 01:16:11,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:11,695 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:11,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:11,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:11,696 INFO L87 Difference]: Start difference. First operand 516 states and 728 transitions. Second operand 11 states. [2019-10-15 01:16:16,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:16,063 INFO L93 Difference]: Finished difference Result 2227 states and 3265 transitions. [2019-10-15 01:16:16,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 01:16:16,069 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 193 [2019-10-15 01:16:16,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:16,086 INFO L225 Difference]: With dead ends: 2227 [2019-10-15 01:16:16,086 INFO L226 Difference]: Without dead ends: 2031 [2019-10-15 01:16:16,089 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-15 01:16:16,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2019-10-15 01:16:16,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2010. [2019-10-15 01:16:16,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2010 states. [2019-10-15 01:16:16,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 2895 transitions. [2019-10-15 01:16:16,203 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 2895 transitions. Word has length 193 [2019-10-15 01:16:16,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:16,204 INFO L462 AbstractCegarLoop]: Abstraction has 2010 states and 2895 transitions. [2019-10-15 01:16:16,204 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:16,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 2895 transitions. [2019-10-15 01:16:16,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 01:16:16,209 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:16,209 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:16,210 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:16,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:16,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1130161941, now seen corresponding path program 1 times [2019-10-15 01:16:16,211 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:16,211 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398713497] [2019-10-15 01:16:16,211 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:16,211 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:16,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:16,607 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:16,608 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398713497] [2019-10-15 01:16:16,608 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:16,608 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:16:16,609 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386172678] [2019-10-15 01:16:16,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:16:16,610 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:16,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:16:16,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:16:16,611 INFO L87 Difference]: Start difference. First operand 2010 states and 2895 transitions. Second operand 18 states. [2019-10-15 01:16:17,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:17,150 INFO L93 Difference]: Finished difference Result 3735 states and 5497 transitions. [2019-10-15 01:16:17,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:16:17,151 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 194 [2019-10-15 01:16:17,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:17,176 INFO L225 Difference]: With dead ends: 3735 [2019-10-15 01:16:17,176 INFO L226 Difference]: Without dead ends: 2027 [2019-10-15 01:16:17,189 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:16:17,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2019-10-15 01:16:17,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 2025. [2019-10-15 01:16:17,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2025 states. [2019-10-15 01:16:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2025 states to 2025 states and 2896 transitions. [2019-10-15 01:16:17,349 INFO L78 Accepts]: Start accepts. Automaton has 2025 states and 2896 transitions. Word has length 194 [2019-10-15 01:16:17,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:17,351 INFO L462 AbstractCegarLoop]: Abstraction has 2025 states and 2896 transitions. [2019-10-15 01:16:17,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:16:17,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2025 states and 2896 transitions. [2019-10-15 01:16:17,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:16:17,356 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:17,356 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:17,357 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:17,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:17,357 INFO L82 PathProgramCache]: Analyzing trace with hash -463407390, now seen corresponding path program 1 times [2019-10-15 01:16:17,357 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:17,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726895980] [2019-10-15 01:16:17,358 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:17,358 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:17,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:17,628 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:17,629 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726895980] [2019-10-15 01:16:17,630 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:17,630 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:16:17,630 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181391334] [2019-10-15 01:16:17,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:16:17,631 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:17,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:16:17,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:16:17,632 INFO L87 Difference]: Start difference. First operand 2025 states and 2896 transitions. Second operand 6 states. [2019-10-15 01:16:18,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:18,260 INFO L93 Difference]: Finished difference Result 5814 states and 8483 transitions. [2019-10-15 01:16:18,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:16:18,260 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2019-10-15 01:16:18,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:18,294 INFO L225 Difference]: With dead ends: 5814 [2019-10-15 01:16:18,295 INFO L226 Difference]: Without dead ends: 4137 [2019-10-15 01:16:18,307 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:16:18,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4137 states. [2019-10-15 01:16:18,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4137 to 4066. [2019-10-15 01:16:18,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4066 states. [2019-10-15 01:16:18,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4066 states to 4066 states and 5906 transitions. [2019-10-15 01:16:18,568 INFO L78 Accepts]: Start accepts. Automaton has 4066 states and 5906 transitions. Word has length 203 [2019-10-15 01:16:18,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:18,568 INFO L462 AbstractCegarLoop]: Abstraction has 4066 states and 5906 transitions. [2019-10-15 01:16:18,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:16:18,569 INFO L276 IsEmpty]: Start isEmpty. Operand 4066 states and 5906 transitions. [2019-10-15 01:16:18,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:16:18,574 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:18,575 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:18,575 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:18,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:18,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1740905386, now seen corresponding path program 1 times [2019-10-15 01:16:18,575 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:18,576 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629162365] [2019-10-15 01:16:18,576 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,576 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:18,907 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:18,908 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629162365] [2019-10-15 01:16:18,908 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:18,908 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:18,908 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736367113] [2019-10-15 01:16:18,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:18,909 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:18,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:18,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:18,910 INFO L87 Difference]: Start difference. First operand 4066 states and 5906 transitions. Second operand 11 states. [2019-10-15 01:16:19,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:19,405 INFO L93 Difference]: Finished difference Result 7559 states and 10999 transitions. [2019-10-15 01:16:19,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:16:19,406 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 204 [2019-10-15 01:16:19,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:19,437 INFO L225 Difference]: With dead ends: 7559 [2019-10-15 01:16:19,438 INFO L226 Difference]: Without dead ends: 4120 [2019-10-15 01:16:19,453 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:16:19,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4120 states. [2019-10-15 01:16:19,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4120 to 4102. [2019-10-15 01:16:19,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4102 states. [2019-10-15 01:16:19,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4102 states to 4102 states and 5942 transitions. [2019-10-15 01:16:19,681 INFO L78 Accepts]: Start accepts. Automaton has 4102 states and 5942 transitions. Word has length 204 [2019-10-15 01:16:19,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:19,682 INFO L462 AbstractCegarLoop]: Abstraction has 4102 states and 5942 transitions. [2019-10-15 01:16:19,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:19,682 INFO L276 IsEmpty]: Start isEmpty. Operand 4102 states and 5942 transitions. [2019-10-15 01:16:19,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:16:19,688 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:19,689 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:19,689 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:19,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:19,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1967285791, now seen corresponding path program 1 times [2019-10-15 01:16:19,690 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:19,690 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306868669] [2019-10-15 01:16:19,691 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:19,691 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:19,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:19,879 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:19,879 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306868669] [2019-10-15 01:16:19,880 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:19,880 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:16:19,880 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466211919] [2019-10-15 01:16:19,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:16:19,882 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:19,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:16:19,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:16:19,883 INFO L87 Difference]: Start difference. First operand 4102 states and 5942 transitions. Second operand 5 states. [2019-10-15 01:16:21,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:21,135 INFO L93 Difference]: Finished difference Result 14991 states and 21806 transitions. [2019-10-15 01:16:21,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:21,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2019-10-15 01:16:21,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:21,241 INFO L225 Difference]: With dead ends: 14991 [2019-10-15 01:16:21,241 INFO L226 Difference]: Without dead ends: 11518 [2019-10-15 01:16:21,265 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:16:21,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11518 states. [2019-10-15 01:16:21,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11518 to 11406. [2019-10-15 01:16:21,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11406 states. [2019-10-15 01:16:21,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11406 states to 11406 states and 16528 transitions. [2019-10-15 01:16:21,976 INFO L78 Accepts]: Start accepts. Automaton has 11406 states and 16528 transitions. Word has length 204 [2019-10-15 01:16:21,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:21,977 INFO L462 AbstractCegarLoop]: Abstraction has 11406 states and 16528 transitions. [2019-10-15 01:16:21,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:16:21,977 INFO L276 IsEmpty]: Start isEmpty. Operand 11406 states and 16528 transitions. [2019-10-15 01:16:21,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-15 01:16:21,994 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:21,995 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:21,995 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:21,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:21,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1138512224, now seen corresponding path program 1 times [2019-10-15 01:16:21,996 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:21,996 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193674790] [2019-10-15 01:16:21,996 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:21,996 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:21,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:22,143 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:22,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193674790] [2019-10-15 01:16:22,145 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:22,145 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:22,146 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816370995] [2019-10-15 01:16:22,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:22,147 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:22,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:22,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:22,148 INFO L87 Difference]: Start difference. First operand 11406 states and 16528 transitions. Second operand 3 states. [2019-10-15 01:16:22,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:22,498 INFO L93 Difference]: Finished difference Result 23075 states and 33592 transitions. [2019-10-15 01:16:22,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:22,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-10-15 01:16:22,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:22,580 INFO L225 Difference]: With dead ends: 23075 [2019-10-15 01:16:22,580 INFO L226 Difference]: Without dead ends: 11734 [2019-10-15 01:16:22,629 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:22,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2019-10-15 01:16:23,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 11730. [2019-10-15 01:16:23,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11730 states. [2019-10-15 01:16:23,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11730 states to 11730 states and 17125 transitions. [2019-10-15 01:16:23,966 INFO L78 Accepts]: Start accepts. Automaton has 11730 states and 17125 transitions. Word has length 233 [2019-10-15 01:16:23,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:23,967 INFO L462 AbstractCegarLoop]: Abstraction has 11730 states and 17125 transitions. [2019-10-15 01:16:23,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:23,967 INFO L276 IsEmpty]: Start isEmpty. Operand 11730 states and 17125 transitions. [2019-10-15 01:16:23,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-15 01:16:23,982 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:23,982 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:23,983 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:23,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:23,983 INFO L82 PathProgramCache]: Analyzing trace with hash 841224065, now seen corresponding path program 1 times [2019-10-15 01:16:23,983 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:23,984 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928476055] [2019-10-15 01:16:23,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:24,143 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928476055] [2019-10-15 01:16:24,144 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:24,144 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:24,145 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756634048] [2019-10-15 01:16:24,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:24,147 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:24,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:24,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:24,148 INFO L87 Difference]: Start difference. First operand 11730 states and 17125 transitions. Second operand 3 states. [2019-10-15 01:16:24,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:24,493 INFO L93 Difference]: Finished difference Result 24007 states and 35319 transitions. [2019-10-15 01:16:24,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:24,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2019-10-15 01:16:24,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:24,560 INFO L225 Difference]: With dead ends: 24007 [2019-10-15 01:16:24,560 INFO L226 Difference]: Without dead ends: 12342 [2019-10-15 01:16:24,615 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:24,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12342 states. [2019-10-15 01:16:25,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12342 to 12338. [2019-10-15 01:16:25,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12338 states. [2019-10-15 01:16:25,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12338 states to 12338 states and 18247 transitions. [2019-10-15 01:16:25,279 INFO L78 Accepts]: Start accepts. Automaton has 12338 states and 18247 transitions. Word has length 234 [2019-10-15 01:16:25,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:25,279 INFO L462 AbstractCegarLoop]: Abstraction has 12338 states and 18247 transitions. [2019-10-15 01:16:25,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:25,280 INFO L276 IsEmpty]: Start isEmpty. Operand 12338 states and 18247 transitions. [2019-10-15 01:16:25,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-15 01:16:25,306 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:25,306 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:25,307 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:25,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:25,307 INFO L82 PathProgramCache]: Analyzing trace with hash 765548462, now seen corresponding path program 1 times [2019-10-15 01:16:25,308 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:25,308 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940316220] [2019-10-15 01:16:25,308 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:25,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:25,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:25,599 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940316220] [2019-10-15 01:16:25,599 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:25,600 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:25,600 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621902220] [2019-10-15 01:16:25,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:25,601 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:25,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:25,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:25,601 INFO L87 Difference]: Start difference. First operand 12338 states and 18247 transitions. Second operand 8 states. [2019-10-15 01:16:30,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:30,401 INFO L93 Difference]: Finished difference Result 37380 states and 56731 transitions. [2019-10-15 01:16:30,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:30,401 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2019-10-15 01:16:30,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:30,534 INFO L225 Difference]: With dead ends: 37380 [2019-10-15 01:16:30,534 INFO L226 Difference]: Without dead ends: 25107 [2019-10-15 01:16:30,575 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:30,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25107 states. [2019-10-15 01:16:31,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25107 to 14654. [2019-10-15 01:16:31,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14654 states. [2019-10-15 01:16:31,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14654 states to 14654 states and 22883 transitions. [2019-10-15 01:16:31,680 INFO L78 Accepts]: Start accepts. Automaton has 14654 states and 22883 transitions. Word has length 241 [2019-10-15 01:16:31,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:31,682 INFO L462 AbstractCegarLoop]: Abstraction has 14654 states and 22883 transitions. [2019-10-15 01:16:31,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:16:31,682 INFO L276 IsEmpty]: Start isEmpty. Operand 14654 states and 22883 transitions. [2019-10-15 01:16:31,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2019-10-15 01:16:31,724 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:31,724 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:31,724 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:31,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:31,725 INFO L82 PathProgramCache]: Analyzing trace with hash -42193158, now seen corresponding path program 1 times [2019-10-15 01:16:31,725 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:31,725 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324758787] [2019-10-15 01:16:31,725 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:31,726 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:31,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:31,931 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:31,931 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324758787] [2019-10-15 01:16:31,931 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:31,932 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:31,932 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705116638] [2019-10-15 01:16:31,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:31,937 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:31,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:31,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:31,937 INFO L87 Difference]: Start difference. First operand 14654 states and 22883 transitions. Second operand 8 states.