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_spec4_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:15:41,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:15:41,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:15:41,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:15:41,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:15:41,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:15:41,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:15:41,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:15:41,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:15:41,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:15:41,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:15:41,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:15:41,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:15:41,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:15:41,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:15:41,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:15:41,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:15:41,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:15:41,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:15:41,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:15:41,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:15:41,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:15:41,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:15:41,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:15:41,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:15:41,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:15:41,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:15:41,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:15:41,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:15:41,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:15:41,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:15:41,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:15:41,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:15:41,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:15:41,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:15:41,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:15:41,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:15:41,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:15:41,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:15:41,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:15:41,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:15:41,155 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:15:41,179 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:15:41,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:15:41,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:15:41,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:15:41,181 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:15:41,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:15:41,182 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:15:41,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:15:41,183 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:15:41,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:15:41,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:15:41,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:15:41,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:15:41,184 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:15:41,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:15:41,185 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:15:41,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:15:41,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:15:41,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:15:41,186 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:15:41,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:15:41,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:41,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:15:41,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:15:41,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:15:41,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:15:41,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:15:41,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:15:41,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:15:41,529 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:15:41,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:15:41,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:15:41,554 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:15:41,554 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:15:41,555 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product35.cil.c [2019-10-15 01:15:41,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd1129cfe/a1921e674a28481e9052e2aae88f60f2/FLAGe91613239 [2019-10-15 01:15:42,285 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:15:42,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product35.cil.c [2019-10-15 01:15:42,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd1129cfe/a1921e674a28481e9052e2aae88f60f2/FLAGe91613239 [2019-10-15 01:15:42,469 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd1129cfe/a1921e674a28481e9052e2aae88f60f2 [2019-10-15 01:15:42,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:15:42,481 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:15:42,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:42,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:15:42,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:15:42,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:42" (1/1) ... [2019-10-15 01:15:42,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3272c0db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:42, skipping insertion in model container [2019-10-15 01:15:42,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:42" (1/1) ... [2019-10-15 01:15:42,501 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:15:42,568 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:15:43,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:43,418 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:15:43,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:43,705 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:15:43,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43 WrapperNode [2019-10-15 01:15:43,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:43,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:15:43,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:15:43,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:15:43,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... [2019-10-15 01:15:43,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... [2019-10-15 01:15:43,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... [2019-10-15 01:15:43,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... [2019-10-15 01:15:43,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... [2019-10-15 01:15:43,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... [2019-10-15 01:15:43,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... [2019-10-15 01:15:43,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:15:43,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:15:43,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:15:43,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:15:43,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:44,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:15:44,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:15:44,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:44,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:15:44,049 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:15:44,050 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:15:44,050 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:15:44,051 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:15:44,051 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:15:44,052 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:15:44,052 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:15:44,053 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:15:44,053 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:15:44,054 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:15:44,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:15:44,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:15:44,058 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:15:44,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:15:44,059 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:15:44,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:15:44,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:15:44,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:15:44,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:15:44,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:15:44,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:15:44,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:15:44,062 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:15:44,062 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:15:44,063 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:15:44,063 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:15:44,063 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:15:44,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:15:44,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:15:44,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:15:44,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:15:44,065 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:15:44,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:15:44,066 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:15:44,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:15:44,066 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:15:44,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:15:44,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:15:44,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:15:44,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:15:44,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:15:44,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:15:44,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:15:44,069 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:15:44,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:15:44,069 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:15:44,070 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:15:44,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:15:44,070 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:15:44,070 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:15:44,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:15:44,071 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:15:44,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:15:44,072 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:15:44,072 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:15:44,072 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:15:44,072 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:15:44,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:15:44,074 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:15:44,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:15:44,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:15:44,075 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:15:44,075 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:15:44,075 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:15:44,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:44,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:44,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:44,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:15:44,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:15:44,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:15:44,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:15:44,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:15:44,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:44,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:15:44,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:44,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:15:44,079 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:15:44,079 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:15:44,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:15:44,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:15:44,080 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:15:44,081 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:15:44,081 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:15:44,082 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:15:44,082 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:15:44,083 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:15:44,083 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:15:44,084 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:15:44,084 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:15:44,084 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:15:44,085 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:15:44,085 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:15:44,085 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:15:44,086 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:15:44,086 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:15:44,089 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:15:44,090 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:15:44,091 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:15:44,091 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:15:44,093 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:15:44,096 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:15:44,097 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:15:44,097 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:15:44,097 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:15:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:15:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:15:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:15:44,099 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:15:44,099 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:15:44,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:15:44,100 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:15:44,102 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:15:44,102 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:15:44,103 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:15:44,103 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:15:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:15:44,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-15 01:15:44,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:15:44,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:15:44,108 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:15:44,110 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:15:44,110 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:15:44,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:15:44,111 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:15:44,111 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:15:44,111 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:15:44,112 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:15:44,113 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:15:44,113 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:15:44,113 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:15:44,114 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:15:44,114 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:15:44,116 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:15:44,120 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:15:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:15:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:15:44,122 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:15:44,123 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:15:44,123 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:15:44,124 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:15:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:15:44,135 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:15:44,135 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:15:44,136 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:15:44,136 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:15:44,136 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:15:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:15:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:15:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:15:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:15:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:15:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:15:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:15:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:15:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:15:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:15:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:15:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:15:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:15:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:15:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:15:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:15:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:15:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:15:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:15:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:15:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:15:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:15:44,144 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:15:44,144 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:15:44,144 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:15:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:15:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:15:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:15:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:15:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:15:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:15:44,147 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:15:44,147 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:15:44,147 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:15:44,148 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:15:44,148 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:15:44,148 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:15:44,149 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:15:44,149 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:15:44,149 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:15:44,149 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:15:44,149 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:15:44,150 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:15:44,150 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:15:44,150 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:15:44,150 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:15:44,150 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:15:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:15:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:15:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:15:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:15:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:15:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:15:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:15:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:15:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:15:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:15:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:15:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:15:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:15:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:15:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:15:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:15:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:15:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:15:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:15:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:15:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:15:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:15:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:15:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:15:44,157 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:15:44,157 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:15:44,157 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:15:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:15:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:15:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:15:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:15:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:15:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:15:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:15:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:15:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:15:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:15:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:15:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:15:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:15:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:15:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:15:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:15:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-15 01:15:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:15:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:15:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:15:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:15:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:15:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:15:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:15:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:15:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:15:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:15:47,022 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:15:47,023 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:15:47,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:47 BoogieIcfgContainer [2019-10-15 01:15:47,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:15:47,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:15:47,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:15:47,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:15:47,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:15:42" (1/3) ... [2019-10-15 01:15:47,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52bb4f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:47, skipping insertion in model container [2019-10-15 01:15:47,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (2/3) ... [2019-10-15 01:15:47,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52bb4f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:47, skipping insertion in model container [2019-10-15 01:15:47,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:47" (3/3) ... [2019-10-15 01:15:47,042 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product35.cil.c [2019-10-15 01:15:47,053 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:15:47,065 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:15:47,081 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:15:47,123 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:15:47,123 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:15:47,123 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:15:47,124 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:15:47,124 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:15:47,124 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:15:47,124 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:15:47,124 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:15:47,171 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states. [2019-10-15 01:15:47,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-15 01:15:47,198 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:47,199 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] [2019-10-15 01:15:47,202 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:47,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:47,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1526735927, now seen corresponding path program 1 times [2019-10-15 01:15:47,218 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:47,219 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665385440] [2019-10-15 01:15:47,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:47,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:47,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:48,000 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:48,001 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665385440] [2019-10-15 01:15:48,002 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:48,002 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:15:48,003 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659569929] [2019-10-15 01:15:48,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:15:48,010 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:48,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:15:48,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:48,029 INFO L87 Difference]: Start difference. First operand 683 states. Second operand 2 states. [2019-10-15 01:15:48,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:48,139 INFO L93 Difference]: Finished difference Result 1041 states and 1401 transitions. [2019-10-15 01:15:48,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:15:48,141 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 173 [2019-10-15 01:15:48,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:48,182 INFO L225 Difference]: With dead ends: 1041 [2019-10-15 01:15:48,182 INFO L226 Difference]: Without dead ends: 654 [2019-10-15 01:15:48,194 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:48,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2019-10-15 01:15:48,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2019-10-15 01:15:48,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2019-10-15 01:15:48,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 886 transitions. [2019-10-15 01:15:48,337 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 886 transitions. Word has length 173 [2019-10-15 01:15:48,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:48,339 INFO L462 AbstractCegarLoop]: Abstraction has 654 states and 886 transitions. [2019-10-15 01:15:48,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:15:48,340 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 886 transitions. [2019-10-15 01:15:48,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-15 01:15:48,346 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:48,347 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] [2019-10-15 01:15:48,347 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:48,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:48,347 INFO L82 PathProgramCache]: Analyzing trace with hash 2124318920, now seen corresponding path program 1 times [2019-10-15 01:15:48,348 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:48,348 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355210125] [2019-10-15 01:15:48,348 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:48,348 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:48,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:48,601 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:48,602 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355210125] [2019-10-15 01:15:48,602 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:48,602 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:48,602 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433437084] [2019-10-15 01:15:48,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:48,605 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:48,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:48,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:48,605 INFO L87 Difference]: Start difference. First operand 654 states and 886 transitions. Second operand 3 states. [2019-10-15 01:15:48,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:48,712 INFO L93 Difference]: Finished difference Result 1024 states and 1366 transitions. [2019-10-15 01:15:48,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:48,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-15 01:15:48,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:48,718 INFO L225 Difference]: With dead ends: 1024 [2019-10-15 01:15:48,719 INFO L226 Difference]: Without dead ends: 657 [2019-10-15 01:15:48,721 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:48,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2019-10-15 01:15:48,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 656. [2019-10-15 01:15:48,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 656 states. [2019-10-15 01:15:48,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 888 transitions. [2019-10-15 01:15:48,774 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 888 transitions. Word has length 174 [2019-10-15 01:15:48,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:48,777 INFO L462 AbstractCegarLoop]: Abstraction has 656 states and 888 transitions. [2019-10-15 01:15:48,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:48,777 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 888 transitions. [2019-10-15 01:15:48,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-15 01:15:48,781 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:48,781 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:48,782 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:48,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:48,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1990518153, now seen corresponding path program 1 times [2019-10-15 01:15:48,782 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:48,783 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037714521] [2019-10-15 01:15:48,783 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:48,783 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:48,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:48,966 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:48,967 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037714521] [2019-10-15 01:15:48,967 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:48,967 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:48,967 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247285884] [2019-10-15 01:15:48,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:48,969 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:48,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:48,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:48,970 INFO L87 Difference]: Start difference. First operand 656 states and 888 transitions. Second operand 3 states. [2019-10-15 01:15:49,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:49,046 INFO L93 Difference]: Finished difference Result 1292 states and 1780 transitions. [2019-10-15 01:15:49,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:49,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-15 01:15:49,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:49,059 INFO L225 Difference]: With dead ends: 1292 [2019-10-15 01:15:49,060 INFO L226 Difference]: Without dead ends: 701 [2019-10-15 01:15:49,064 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:49,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2019-10-15 01:15:49,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 700. [2019-10-15 01:15:49,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2019-10-15 01:15:49,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 963 transitions. [2019-10-15 01:15:49,133 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 963 transitions. Word has length 186 [2019-10-15 01:15:49,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:49,134 INFO L462 AbstractCegarLoop]: Abstraction has 700 states and 963 transitions. [2019-10-15 01:15:49,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:49,135 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 963 transitions. [2019-10-15 01:15:49,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-15 01:15:49,145 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:49,145 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:49,146 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:49,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:49,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1349951716, now seen corresponding path program 1 times [2019-10-15 01:15:49,147 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:49,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756961284] [2019-10-15 01:15:49,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:49,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:49,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:49,443 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:49,443 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756961284] [2019-10-15 01:15:49,444 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:49,444 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:49,444 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124587571] [2019-10-15 01:15:49,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:49,446 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:49,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:49,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:49,448 INFO L87 Difference]: Start difference. First operand 700 states and 963 transitions. Second operand 3 states. [2019-10-15 01:15:49,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:49,504 INFO L93 Difference]: Finished difference Result 1421 states and 2000 transitions. [2019-10-15 01:15:49,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:49,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-10-15 01:15:49,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:49,516 INFO L225 Difference]: With dead ends: 1421 [2019-10-15 01:15:49,516 INFO L226 Difference]: Without dead ends: 786 [2019-10-15 01:15:49,520 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:49,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2019-10-15 01:15:49,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 785. [2019-10-15 01:15:49,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2019-10-15 01:15:49,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1107 transitions. [2019-10-15 01:15:49,623 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1107 transitions. Word has length 187 [2019-10-15 01:15:49,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:49,623 INFO L462 AbstractCegarLoop]: Abstraction has 785 states and 1107 transitions. [2019-10-15 01:15:49,624 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:49,624 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1107 transitions. [2019-10-15 01:15:49,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 01:15:49,629 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:49,629 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] [2019-10-15 01:15:49,629 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:49,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:49,630 INFO L82 PathProgramCache]: Analyzing trace with hash 406416016, now seen corresponding path program 1 times [2019-10-15 01:15:49,630 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:49,631 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954142776] [2019-10-15 01:15:49,631 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:49,631 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:49,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:49,910 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:49,910 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954142776] [2019-10-15 01:15:49,911 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:49,911 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:15:49,911 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037901705] [2019-10-15 01:15:49,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:15:49,912 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:49,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:15:49,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:15:49,913 INFO L87 Difference]: Start difference. First operand 785 states and 1107 transitions. Second operand 7 states. [2019-10-15 01:15:54,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:54,681 INFO L93 Difference]: Finished difference Result 1511 states and 2062 transitions. [2019-10-15 01:15:54,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:15:54,690 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2019-10-15 01:15:54,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:54,697 INFO L225 Difference]: With dead ends: 1511 [2019-10-15 01:15:54,697 INFO L226 Difference]: Without dead ends: 1155 [2019-10-15 01:15:54,699 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:15:54,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2019-10-15 01:15:54,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1146. [2019-10-15 01:15:54,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1146 states. [2019-10-15 01:15:54,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1581 transitions. [2019-10-15 01:15:54,752 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1581 transitions. Word has length 190 [2019-10-15 01:15:54,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:54,753 INFO L462 AbstractCegarLoop]: Abstraction has 1146 states and 1581 transitions. [2019-10-15 01:15:54,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:15:54,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1581 transitions. [2019-10-15 01:15:54,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:15:54,758 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:54,758 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] [2019-10-15 01:15:54,759 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:54,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:54,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1235262333, now seen corresponding path program 1 times [2019-10-15 01:15:54,759 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:54,759 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989542395] [2019-10-15 01:15:54,760 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:54,760 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:54,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:55,350 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:55,351 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989542395] [2019-10-15 01:15:55,352 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:55,352 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-15 01:15:55,352 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911605290] [2019-10-15 01:15:55,354 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-15 01:15:55,354 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:55,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-15 01:15:55,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:15:55,356 INFO L87 Difference]: Start difference. First operand 1146 states and 1581 transitions. Second operand 20 states. [2019-10-15 01:15:56,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:56,063 INFO L93 Difference]: Finished difference Result 1979 states and 2698 transitions. [2019-10-15 01:15:56,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-15 01:15:56,063 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 191 [2019-10-15 01:15:56,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:56,079 INFO L225 Difference]: With dead ends: 1979 [2019-10-15 01:15:56,079 INFO L226 Difference]: Without dead ends: 1256 [2019-10-15 01:15:56,085 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:15:56,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2019-10-15 01:15:56,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1254. [2019-10-15 01:15:56,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1254 states. [2019-10-15 01:15:56,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1734 transitions. [2019-10-15 01:15:56,159 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1734 transitions. Word has length 191 [2019-10-15 01:15:56,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:56,163 INFO L462 AbstractCegarLoop]: Abstraction has 1254 states and 1734 transitions. [2019-10-15 01:15:56,163 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-15 01:15:56,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1734 transitions. [2019-10-15 01:15:56,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:15:56,169 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:56,169 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] [2019-10-15 01:15:56,170 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:56,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:56,170 INFO L82 PathProgramCache]: Analyzing trace with hash -528553574, now seen corresponding path program 1 times [2019-10-15 01:15:56,170 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:56,170 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535154608] [2019-10-15 01:15:56,171 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:56,171 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:56,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:56,467 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:56,468 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535154608] [2019-10-15 01:15:56,468 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:56,468 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:15:56,468 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907085733] [2019-10-15 01:15:56,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:15:56,469 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:56,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:15:56,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:15:56,470 INFO L87 Difference]: Start difference. First operand 1254 states and 1734 transitions. Second operand 8 states. [2019-10-15 01:15:58,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:58,137 INFO L93 Difference]: Finished difference Result 2755 states and 3735 transitions. [2019-10-15 01:15:58,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:15:58,138 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2019-10-15 01:15:58,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:58,159 INFO L225 Difference]: With dead ends: 2755 [2019-10-15 01:15:58,159 INFO L226 Difference]: Without dead ends: 2124 [2019-10-15 01:15:58,162 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:15:58,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2019-10-15 01:15:58,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 2105. [2019-10-15 01:15:58,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2105 states. [2019-10-15 01:15:58,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2105 states to 2105 states and 2875 transitions. [2019-10-15 01:15:58,286 INFO L78 Accepts]: Start accepts. Automaton has 2105 states and 2875 transitions. Word has length 200 [2019-10-15 01:15:58,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:58,287 INFO L462 AbstractCegarLoop]: Abstraction has 2105 states and 2875 transitions. [2019-10-15 01:15:58,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:15:58,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2105 states and 2875 transitions. [2019-10-15 01:15:58,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:15:58,293 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:58,294 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:58,294 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:58,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:58,294 INFO L82 PathProgramCache]: Analyzing trace with hash -398855595, now seen corresponding path program 1 times [2019-10-15 01:15:58,295 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:58,295 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509812029] [2019-10-15 01:15:58,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:58,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:58,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:58,741 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:58,741 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509812029] [2019-10-15 01:15:58,741 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:58,741 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:15:58,742 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383999179] [2019-10-15 01:15:58,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:15:58,742 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:58,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:15:58,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:15:58,743 INFO L87 Difference]: Start difference. First operand 2105 states and 2875 transitions. Second operand 19 states. [2019-10-15 01:16:00,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:00,046 INFO L93 Difference]: Finished difference Result 2920 states and 3961 transitions. [2019-10-15 01:16:00,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-15 01:16:00,046 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 201 [2019-10-15 01:16:00,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:00,062 INFO L225 Difference]: With dead ends: 2920 [2019-10-15 01:16:00,063 INFO L226 Difference]: Without dead ends: 2104 [2019-10-15 01:16:00,068 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:16:00,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2019-10-15 01:16:00,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 2103. [2019-10-15 01:16:00,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2103 states. [2019-10-15 01:16:00,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2103 states to 2103 states and 2870 transitions. [2019-10-15 01:16:00,239 INFO L78 Accepts]: Start accepts. Automaton has 2103 states and 2870 transitions. Word has length 201 [2019-10-15 01:16:00,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:00,241 INFO L462 AbstractCegarLoop]: Abstraction has 2103 states and 2870 transitions. [2019-10-15 01:16:00,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:16:00,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2103 states and 2870 transitions. [2019-10-15 01:16:00,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:16:00,251 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:00,252 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:00,252 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:00,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:00,253 INFO L82 PathProgramCache]: Analyzing trace with hash -942439337, now seen corresponding path program 2 times [2019-10-15 01:16:00,253 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:00,253 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147053761] [2019-10-15 01:16:00,254 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:00,254 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:00,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:00,622 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:16:00,622 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147053761] [2019-10-15 01:16:00,625 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742088928] [2019-10-15 01:16:00,625 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:01,268 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-15 01:16:01,268 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:16:01,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 2266 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-15 01:16:01,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:16:01,622 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 01:16:01,622 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:16:02,279 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 01:16:02,281 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:16:02,281 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-10-15 01:16:02,281 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282848425] [2019-10-15 01:16:02,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:16:02,283 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:02,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:16:02,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:16:02,284 INFO L87 Difference]: Start difference. First operand 2103 states and 2870 transitions. Second operand 14 states. [2019-10-15 01:16:05,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:05,395 INFO L93 Difference]: Finished difference Result 6281 states and 8621 transitions. [2019-10-15 01:16:05,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-15 01:16:05,395 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 201 [2019-10-15 01:16:05,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:05,439 INFO L225 Difference]: With dead ends: 6281 [2019-10-15 01:16:05,440 INFO L226 Difference]: Without dead ends: 6278 [2019-10-15 01:16:05,457 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 396 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=178, Invalid=1228, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 01:16:05,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6278 states. [2019-10-15 01:16:05,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6278 to 4561. [2019-10-15 01:16:05,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4561 states. [2019-10-15 01:16:05,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4561 states to 4561 states and 6344 transitions. [2019-10-15 01:16:05,836 INFO L78 Accepts]: Start accepts. Automaton has 4561 states and 6344 transitions. Word has length 201 [2019-10-15 01:16:05,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:05,839 INFO L462 AbstractCegarLoop]: Abstraction has 4561 states and 6344 transitions. [2019-10-15 01:16:05,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 01:16:05,839 INFO L276 IsEmpty]: Start isEmpty. Operand 4561 states and 6344 transitions. [2019-10-15 01:16:05,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:16:05,855 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:05,855 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:06,073 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:06,073 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:06,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:06,074 INFO L82 PathProgramCache]: Analyzing trace with hash 522610599, now seen corresponding path program 1 times [2019-10-15 01:16:06,074 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:06,077 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564514538] [2019-10-15 01:16:06,077 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:06,078 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:06,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:06,467 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-15 01:16:06,468 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564514538] [2019-10-15 01:16:06,468 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226201599] [2019-10-15 01:16:06,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:07,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 3046 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:16:07,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:16:07,732 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:16:07,732 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:16:08,138 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:16:08,230 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:08,317 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:08,441 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-15 01:16:08,442 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:16:08,442 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 9] total 24 [2019-10-15 01:16:08,442 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698132017] [2019-10-15 01:16:08,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:16:08,443 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:08,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:16:08,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2019-10-15 01:16:08,444 INFO L87 Difference]: Start difference. First operand 4561 states and 6344 transitions. Second operand 9 states. [2019-10-15 01:16:11,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:11,619 INFO L93 Difference]: Finished difference Result 9096 states and 12662 transitions. [2019-10-15 01:16:11,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:16:11,621 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 203 [2019-10-15 01:16:11,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:11,650 INFO L225 Difference]: With dead ends: 9096 [2019-10-15 01:16:11,650 INFO L226 Difference]: Without dead ends: 4579 [2019-10-15 01:16:11,666 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 390 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2019-10-15 01:16:11,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4579 states. [2019-10-15 01:16:11,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4579 to 4579. [2019-10-15 01:16:11,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4579 states. [2019-10-15 01:16:11,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4579 states to 4579 states and 6365 transitions. [2019-10-15 01:16:11,915 INFO L78 Accepts]: Start accepts. Automaton has 4579 states and 6365 transitions. Word has length 203 [2019-10-15 01:16:11,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:11,916 INFO L462 AbstractCegarLoop]: Abstraction has 4579 states and 6365 transitions. [2019-10-15 01:16:11,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:16:11,916 INFO L276 IsEmpty]: Start isEmpty. Operand 4579 states and 6365 transitions. [2019-10-15 01:16:11,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:16:11,928 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:11,928 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:12,133 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:12,134 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:12,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:12,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1287740052, now seen corresponding path program 1 times [2019-10-15 01:16:12,135 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:12,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207460284] [2019-10-15 01:16:12,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:12,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:12,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:12,416 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-15 01:16:12,417 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207460284] [2019-10-15 01:16:12,417 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221631710] [2019-10-15 01:16:12,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true