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_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:04,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:04,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:04,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:04,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:04,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:04,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:04,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:04,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:04,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:04,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:04,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:04,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:04,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:04,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:04,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:04,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:04,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:04,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:04,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:04,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:04,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:04,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:04,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:04,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:04,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:04,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:04,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:05,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:05,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:05,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:05,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:05,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:05,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:05,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:05,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:05,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:05,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:05,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:05,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:05,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:05,011 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:17:05,040 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:05,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:05,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:05,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:05,044 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:05,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:05,044 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:05,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:05,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:05,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:05,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:05,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:05,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:05,047 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:05,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:05,047 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:05,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:05,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:05,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:05,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:05,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:05,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:05,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:05,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:05,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:05,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:05,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:05,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:05,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:17:05,351 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:05,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:05,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:05,371 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:05,372 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:05,373 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product16.cil.c [2019-10-13 21:17:05,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf5cc6052/bfafb1727755435e841879216d205c13/FLAG4eb6f8e6f [2019-10-13 21:17:06,084 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:06,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product16.cil.c [2019-10-13 21:17:06,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf5cc6052/bfafb1727755435e841879216d205c13/FLAG4eb6f8e6f [2019-10-13 21:17:06,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf5cc6052/bfafb1727755435e841879216d205c13 [2019-10-13 21:17:06,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:06,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:06,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:06,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:06,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:06,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:06" (1/1) ... [2019-10-13 21:17:06,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7492c7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:06, skipping insertion in model container [2019-10-13 21:17:06,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:06" (1/1) ... [2019-10-13 21:17:06,309 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:06,391 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:07,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:07,257 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:07,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:07,568 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:07,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07 WrapperNode [2019-10-13 21:17:07,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:07,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:07,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:07,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:07,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:07,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:07,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:07,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:07,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:07,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:07,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:07,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:07,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:07,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:07,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:07,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:07,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:07,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:07,882 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:07,882 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:07,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:07,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:07,884 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:07,884 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:07,884 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:07,886 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:07,887 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:07,887 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:07,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:07,887 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:07,888 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:07,888 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:17:07,888 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:07,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:07,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:07,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:07,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:07,890 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:07,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:07,890 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:07,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:07,897 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:07,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:07,897 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:07,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:07,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:07,898 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:07,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:07,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:07,899 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:07,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:07,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:07,900 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:07,900 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:07,900 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:07,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:07,900 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:07,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:07,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:07,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:07,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:07,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:07,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:07,904 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:17:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:07,909 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:07,909 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:07,909 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:07,909 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:17:07,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:07,914 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:07,917 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:07,920 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:07,920 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:07,921 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:07,921 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:07,921 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:07,922 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:07,922 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:07,929 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:07,929 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:07,930 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:07,930 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:07,930 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:17:07,930 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:07,932 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:07,932 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:07,932 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:07,932 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:07,932 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:07,932 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:07,932 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:07,933 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:07,933 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:07,933 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:07,933 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:07,933 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:07,933 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:07,933 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:07,933 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:17:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:17:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:10,129 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:10,130 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:10,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:10 BoogieIcfgContainer [2019-10-13 21:17:10,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:10,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:10,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:10,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:10,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:06" (1/3) ... [2019-10-13 21:17:10,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1238339c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:10, skipping insertion in model container [2019-10-13 21:17:10,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (2/3) ... [2019-10-13 21:17:10,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1238339c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:10, skipping insertion in model container [2019-10-13 21:17:10,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:10" (3/3) ... [2019-10-13 21:17:10,144 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product16.cil.c [2019-10-13 21:17:10,155 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:10,167 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:10,179 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:10,220 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:10,220 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:10,220 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:10,221 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:10,221 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:10,221 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:10,221 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:10,221 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:10,262 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states. [2019-10-13 21:17:10,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-13 21:17:10,291 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:10,293 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] [2019-10-13 21:17:10,295 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:10,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:10,301 INFO L82 PathProgramCache]: Analyzing trace with hash -610566367, now seen corresponding path program 1 times [2019-10-13 21:17:10,309 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:10,310 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600340280] [2019-10-13 21:17:10,310 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:10,310 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:10,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:10,968 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:10,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600340280] [2019-10-13 21:17:10,970 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:10,971 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:10,971 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133361816] [2019-10-13 21:17:10,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:10,980 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:10,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:10,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:10,998 INFO L87 Difference]: Start difference. First operand 484 states. Second operand 2 states. [2019-10-13 21:17:11,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:11,100 INFO L93 Difference]: Finished difference Result 710 states and 934 transitions. [2019-10-13 21:17:11,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:11,101 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 176 [2019-10-13 21:17:11,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:11,140 INFO L225 Difference]: With dead ends: 710 [2019-10-13 21:17:11,141 INFO L226 Difference]: Without dead ends: 461 [2019-10-13 21:17:11,152 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:11,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2019-10-13 21:17:11,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2019-10-13 21:17:11,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2019-10-13 21:17:11,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 611 transitions. [2019-10-13 21:17:11,262 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 611 transitions. Word has length 176 [2019-10-13 21:17:11,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:11,265 INFO L462 AbstractCegarLoop]: Abstraction has 461 states and 611 transitions. [2019-10-13 21:17:11,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:11,265 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 611 transitions. [2019-10-13 21:17:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-13 21:17:11,271 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:11,271 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] [2019-10-13 21:17:11,272 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:11,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:11,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1997838255, now seen corresponding path program 1 times [2019-10-13 21:17:11,272 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:11,273 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832183139] [2019-10-13 21:17:11,273 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:11,273 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:11,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:11,526 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:11,527 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832183139] [2019-10-13 21:17:11,527 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:11,527 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:11,528 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790470862] [2019-10-13 21:17:11,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:11,537 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:11,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:11,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:11,538 INFO L87 Difference]: Start difference. First operand 461 states and 611 transitions. Second operand 3 states. [2019-10-13 21:17:11,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:11,625 INFO L93 Difference]: Finished difference Result 693 states and 902 transitions. [2019-10-13 21:17:11,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:11,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-13 21:17:11,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:11,631 INFO L225 Difference]: With dead ends: 693 [2019-10-13 21:17:11,631 INFO L226 Difference]: Without dead ends: 464 [2019-10-13 21:17:11,634 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:11,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2019-10-13 21:17:11,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 463. [2019-10-13 21:17:11,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2019-10-13 21:17:11,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 613 transitions. [2019-10-13 21:17:11,671 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 613 transitions. Word has length 177 [2019-10-13 21:17:11,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:11,672 INFO L462 AbstractCegarLoop]: Abstraction has 463 states and 613 transitions. [2019-10-13 21:17:11,672 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:11,672 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 613 transitions. [2019-10-13 21:17:11,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-13 21:17:11,676 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:11,677 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] [2019-10-13 21:17:11,677 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:11,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:11,678 INFO L82 PathProgramCache]: Analyzing trace with hash 47308899, now seen corresponding path program 1 times [2019-10-13 21:17:11,678 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:11,678 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847713739] [2019-10-13 21:17:11,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:11,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:11,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:11,901 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:11,901 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847713739] [2019-10-13 21:17:11,902 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:11,902 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:11,902 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615911057] [2019-10-13 21:17:11,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:11,909 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:11,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:11,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:11,910 INFO L87 Difference]: Start difference. First operand 463 states and 613 transitions. Second operand 3 states. [2019-10-13 21:17:11,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:11,956 INFO L93 Difference]: Finished difference Result 902 states and 1224 transitions. [2019-10-13 21:17:11,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:11,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-10-13 21:17:11,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:11,962 INFO L225 Difference]: With dead ends: 902 [2019-10-13 21:17:11,962 INFO L226 Difference]: Without dead ends: 504 [2019-10-13 21:17:11,964 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:11,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2019-10-13 21:17:12,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 503. [2019-10-13 21:17:12,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2019-10-13 21:17:12,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 682 transitions. [2019-10-13 21:17:12,010 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 682 transitions. Word has length 183 [2019-10-13 21:17:12,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:12,010 INFO L462 AbstractCegarLoop]: Abstraction has 503 states and 682 transitions. [2019-10-13 21:17:12,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 682 transitions. [2019-10-13 21:17:12,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-13 21:17:12,015 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:12,015 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] [2019-10-13 21:17:12,016 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:12,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:12,016 INFO L82 PathProgramCache]: Analyzing trace with hash 142664055, now seen corresponding path program 1 times [2019-10-13 21:17:12,016 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:12,017 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941199501] [2019-10-13 21:17:12,017 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,017 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:12,323 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941199501] [2019-10-13 21:17:12,324 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:12,324 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:12,324 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711550983] [2019-10-13 21:17:12,325 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:12,325 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:12,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:12,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:12,326 INFO L87 Difference]: Start difference. First operand 503 states and 682 transitions. Second operand 11 states. [2019-10-13 21:17:16,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:16,507 INFO L93 Difference]: Finished difference Result 2270 states and 3005 transitions. [2019-10-13 21:17:16,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-13 21:17:16,510 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 184 [2019-10-13 21:17:16,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:16,523 INFO L225 Difference]: With dead ends: 2270 [2019-10-13 21:17:16,523 INFO L226 Difference]: Without dead ends: 1788 [2019-10-13 21:17:16,526 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-10-13 21:17:16,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2019-10-13 21:17:16,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1773. [2019-10-13 21:17:16,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1773 states. [2019-10-13 21:17:16,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2323 transitions. [2019-10-13 21:17:16,629 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2323 transitions. Word has length 184 [2019-10-13 21:17:16,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:16,630 INFO L462 AbstractCegarLoop]: Abstraction has 1773 states and 2323 transitions. [2019-10-13 21:17:16,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:16,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2323 transitions. [2019-10-13 21:17:16,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-13 21:17:16,635 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:16,635 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] [2019-10-13 21:17:16,636 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:16,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:16,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1260234417, now seen corresponding path program 1 times [2019-10-13 21:17:16,637 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:16,637 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61426509] [2019-10-13 21:17:16,637 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:16,637 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:16,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:16,995 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:16,996 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61426509] [2019-10-13 21:17:16,997 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:16,997 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 21:17:16,997 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232126837] [2019-10-13 21:17:16,998 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 21:17:16,998 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:16,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 21:17:17,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:17:17,000 INFO L87 Difference]: Start difference. First operand 1773 states and 2323 transitions. Second operand 16 states. [2019-10-13 21:17:17,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:17,595 INFO L93 Difference]: Finished difference Result 3058 states and 3982 transitions. [2019-10-13 21:17:17,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 21:17:17,595 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 185 [2019-10-13 21:17:17,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:17,607 INFO L225 Difference]: With dead ends: 3058 [2019-10-13 21:17:17,607 INFO L226 Difference]: Without dead ends: 1440 [2019-10-13 21:17:17,617 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-13 21:17:17,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2019-10-13 21:17:17,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1393. [2019-10-13 21:17:17,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1393 states. [2019-10-13 21:17:17,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1820 transitions. [2019-10-13 21:17:17,690 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1820 transitions. Word has length 185 [2019-10-13 21:17:17,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:17,693 INFO L462 AbstractCegarLoop]: Abstraction has 1393 states and 1820 transitions. [2019-10-13 21:17:17,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 21:17:17,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1820 transitions. [2019-10-13 21:17:17,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-13 21:17:17,699 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:17,699 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] [2019-10-13 21:17:17,699 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:17,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:17,700 INFO L82 PathProgramCache]: Analyzing trace with hash 2110369116, now seen corresponding path program 1 times [2019-10-13 21:17:17,700 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:17,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209257047] [2019-10-13 21:17:17,701 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:17,701 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:17,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:17,898 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:17,898 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209257047] [2019-10-13 21:17:17,899 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:17,900 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:17:17,900 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153586670] [2019-10-13 21:17:17,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:17:17,901 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:17,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:17:17,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:17:17,901 INFO L87 Difference]: Start difference. First operand 1393 states and 1820 transitions. Second operand 6 states. [2019-10-13 21:17:18,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:18,480 INFO L93 Difference]: Finished difference Result 3855 states and 5015 transitions. [2019-10-13 21:17:18,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:17:18,481 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 194 [2019-10-13 21:17:18,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:18,503 INFO L225 Difference]: With dead ends: 3855 [2019-10-13 21:17:18,503 INFO L226 Difference]: Without dead ends: 2777 [2019-10-13 21:17:18,509 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 [2019-10-13 21:17:18,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2019-10-13 21:17:18,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 2706. [2019-10-13 21:17:18,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2706 states. [2019-10-13 21:17:18,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 3557 transitions. [2019-10-13 21:17:18,741 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 3557 transitions. Word has length 194 [2019-10-13 21:17:18,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:18,742 INFO L462 AbstractCegarLoop]: Abstraction has 2706 states and 3557 transitions. [2019-10-13 21:17:18,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:17:18,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 3557 transitions. [2019-10-13 21:17:18,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-13 21:17:18,751 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:18,752 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] [2019-10-13 21:17:18,752 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:18,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:18,753 INFO L82 PathProgramCache]: Analyzing trace with hash 589326950, now seen corresponding path program 1 times [2019-10-13 21:17:18,753 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:18,753 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882766108] [2019-10-13 21:17:18,754 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:18,754 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:18,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:18,989 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:18,990 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882766108] [2019-10-13 21:17:18,990 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:18,990 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:17:18,994 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091866822] [2019-10-13 21:17:18,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:17:18,995 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:18,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:17:18,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:17:18,996 INFO L87 Difference]: Start difference. First operand 2706 states and 3557 transitions. Second operand 5 states. [2019-10-13 21:17:20,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:20,282 INFO L93 Difference]: Finished difference Result 9715 states and 12616 transitions. [2019-10-13 21:17:20,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:17:20,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 195 [2019-10-13 21:17:20,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:20,345 INFO L225 Difference]: With dead ends: 9715 [2019-10-13 21:17:20,346 INFO L226 Difference]: Without dead ends: 7570 [2019-10-13 21:17:20,362 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 [2019-10-13 21:17:20,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7570 states. [2019-10-13 21:17:20,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7570 to 7434. [2019-10-13 21:17:20,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7434 states. [2019-10-13 21:17:20,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7434 states to 7434 states and 9721 transitions. [2019-10-13 21:17:20,836 INFO L78 Accepts]: Start accepts. Automaton has 7434 states and 9721 transitions. Word has length 195 [2019-10-13 21:17:20,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:20,837 INFO L462 AbstractCegarLoop]: Abstraction has 7434 states and 9721 transitions. [2019-10-13 21:17:20,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:17:20,837 INFO L276 IsEmpty]: Start isEmpty. Operand 7434 states and 9721 transitions. [2019-10-13 21:17:20,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-13 21:17:20,846 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:20,847 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] [2019-10-13 21:17:20,847 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:20,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:20,848 INFO L82 PathProgramCache]: Analyzing trace with hash 2550831, now seen corresponding path program 1 times [2019-10-13 21:17:20,848 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:20,848 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518673634] [2019-10-13 21:17:20,848 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:20,848 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:20,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:21,087 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:21,088 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518673634] [2019-10-13 21:17:21,088 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:21,088 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:17:21,088 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732664325] [2019-10-13 21:17:21,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:17:21,090 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:21,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:17:21,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:17:21,091 INFO L87 Difference]: Start difference. First operand 7434 states and 9721 transitions. Second operand 9 states. [2019-10-13 21:17:21,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:21,581 INFO L93 Difference]: Finished difference Result 12593 states and 16204 transitions. [2019-10-13 21:17:21,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:17:21,582 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2019-10-13 21:17:21,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:21,624 INFO L225 Difference]: With dead ends: 12593 [2019-10-13 21:17:21,624 INFO L226 Difference]: Without dead ends: 6302 [2019-10-13 21:17:21,647 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:17:21,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6302 states. [2019-10-13 21:17:22,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6302 to 6112. [2019-10-13 21:17:22,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6112 states. [2019-10-13 21:17:22,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6112 states to 6112 states and 8005 transitions. [2019-10-13 21:17:22,110 INFO L78 Accepts]: Start accepts. Automaton has 6112 states and 8005 transitions. Word has length 195 [2019-10-13 21:17:22,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:22,111 INFO L462 AbstractCegarLoop]: Abstraction has 6112 states and 8005 transitions. [2019-10-13 21:17:22,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:17:22,111 INFO L276 IsEmpty]: Start isEmpty. Operand 6112 states and 8005 transitions. [2019-10-13 21:17:22,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-13 21:17:22,129 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:22,129 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] [2019-10-13 21:17:22,130 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:22,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:22,130 INFO L82 PathProgramCache]: Analyzing trace with hash -2087107406, now seen corresponding path program 1 times [2019-10-13 21:17:22,131 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:22,131 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650086725] [2019-10-13 21:17:22,131 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:22,132 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:22,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:22,307 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:22,308 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650086725] [2019-10-13 21:17:22,308 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:22,309 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:22,310 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024558521] [2019-10-13 21:17:22,311 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:22,311 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:22,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:22,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:22,312 INFO L87 Difference]: Start difference. First operand 6112 states and 8005 transitions. Second operand 3 states. [2019-10-13 21:17:22,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:22,533 INFO L93 Difference]: Finished difference Result 12487 states and 16546 transitions. [2019-10-13 21:17:22,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:22,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2019-10-13 21:17:22,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:22,587 INFO L225 Difference]: With dead ends: 12487 [2019-10-13 21:17:22,587 INFO L226 Difference]: Without dead ends: 6440 [2019-10-13 21:17:22,608 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:22,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6440 states. [2019-10-13 21:17:23,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6440 to 6436. [2019-10-13 21:17:23,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6436 states. [2019-10-13 21:17:23,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6436 states to 6436 states and 8602 transitions. [2019-10-13 21:17:23,220 INFO L78 Accepts]: Start accepts. Automaton has 6436 states and 8602 transitions. Word has length 224 [2019-10-13 21:17:23,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:23,221 INFO L462 AbstractCegarLoop]: Abstraction has 6436 states and 8602 transitions. [2019-10-13 21:17:23,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:23,221 INFO L276 IsEmpty]: Start isEmpty. Operand 6436 states and 8602 transitions. [2019-10-13 21:17:23,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-13 21:17:23,243 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:23,243 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] [2019-10-13 21:17:23,244 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:23,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:23,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1404923970, now seen corresponding path program 1 times [2019-10-13 21:17:23,245 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:23,245 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792737192] [2019-10-13 21:17:23,246 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:23,246 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:23,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:23,458 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:23,458 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792737192] [2019-10-13 21:17:23,459 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:23,459 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:23,459 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691342075] [2019-10-13 21:17:23,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:23,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:23,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:23,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:23,462 INFO L87 Difference]: Start difference. First operand 6436 states and 8602 transitions. Second operand 3 states. [2019-10-13 21:17:23,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:23,699 INFO L93 Difference]: Finished difference Result 13419 states and 18273 transitions. [2019-10-13 21:17:23,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:23,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2019-10-13 21:17:23,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:23,736 INFO L225 Difference]: With dead ends: 13419 [2019-10-13 21:17:23,736 INFO L226 Difference]: Without dead ends: 7048 [2019-10-13 21:17:23,762 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:23,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7048 states. [2019-10-13 21:17:24,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7048 to 7044. [2019-10-13 21:17:24,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7044 states. [2019-10-13 21:17:24,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 9724 transitions. [2019-10-13 21:17:24,202 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 9724 transitions. Word has length 225 [2019-10-13 21:17:24,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:24,203 INFO L462 AbstractCegarLoop]: Abstraction has 7044 states and 9724 transitions. [2019-10-13 21:17:24,203 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:24,203 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 9724 transitions. [2019-10-13 21:17:24,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-13 21:17:24,228 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:24,229 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] [2019-10-13 21:17:24,229 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:24,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:24,230 INFO L82 PathProgramCache]: Analyzing trace with hash 671591012, now seen corresponding path program 1 times [2019-10-13 21:17:24,230 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:24,230 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128862196] [2019-10-13 21:17:24,230 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:24,231 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:24,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:24,592 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:24,593 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128862196] [2019-10-13 21:17:24,593 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:24,594 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:24,594 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151954917] [2019-10-13 21:17:24,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:24,595 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:24,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:24,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:24,596 INFO L87 Difference]: Start difference. First operand 7044 states and 9724 transitions. Second operand 8 states. [2019-10-13 21:17:29,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:29,674 INFO L93 Difference]: Finished difference Result 21498 states and 31162 transitions. [2019-10-13 21:17:29,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 21:17:29,675 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 232 [2019-10-13 21:17:29,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:29,769 INFO L225 Difference]: With dead ends: 21498 [2019-10-13 21:17:29,769 INFO L226 Difference]: Without dead ends: 14519 [2019-10-13 21:17:29,800 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 [2019-10-13 21:17:29,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14519 states. [2019-10-13 21:17:30,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14519 to 9228. [2019-10-13 21:17:30,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9228 states. [2019-10-13 21:17:30,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9228 states to 9228 states and 14128 transitions. [2019-10-13 21:17:30,396 INFO L78 Accepts]: Start accepts. Automaton has 9228 states and 14128 transitions. Word has length 232 [2019-10-13 21:17:30,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:30,398 INFO L462 AbstractCegarLoop]: Abstraction has 9228 states and 14128 transitions. [2019-10-13 21:17:30,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:17:30,398 INFO L276 IsEmpty]: Start isEmpty. Operand 9228 states and 14128 transitions. [2019-10-13 21:17:30,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-13 21:17:30,441 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:30,442 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] [2019-10-13 21:17:30,443 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:30,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:30,443 INFO L82 PathProgramCache]: Analyzing trace with hash -567939663, now seen corresponding path program 1 times [2019-10-13 21:17:30,443 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:30,444 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850804008] [2019-10-13 21:17:30,444 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:30,444 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:30,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:30,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850804008] [2019-10-13 21:17:30,793 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:30,793 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:30,793 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739582916] [2019-10-13 21:17:30,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:30,794 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:30,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:30,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:30,795 INFO L87 Difference]: Start difference. First operand 9228 states and 14128 transitions. Second operand 8 states.