java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:11,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:11,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:11,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:11,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:11,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:11,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:11,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:11,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:11,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:11,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:11,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:11,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:11,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:11,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:11,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:11,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:11,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:11,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:11,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:11,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:11,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:11,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:11,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:11,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:11,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:11,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:11,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:11,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:11,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:11,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:11,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:11,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:11,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:11,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:11,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:11,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:11,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:11,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:11,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:11,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:11,916 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:16:11,937 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:11,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:11,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:11,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:11,940 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:11,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:11,940 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:11,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:11,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:11,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:11,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:11,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:11,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:11,943 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:11,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:11,943 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:11,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:11,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:11,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:11,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:11,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:11,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:11,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:11,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:11,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:11,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:11,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:11,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:11,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:16:12,248 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:12,265 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:12,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:12,271 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:12,271 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:12,272 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2019-10-15 01:16:12,346 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ebc3cfa8/9f3be99b66fa4c55b1d95b364a189b5f/FLAG282f6e666 [2019-10-15 01:16:12,992 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:12,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2019-10-15 01:16:13,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ebc3cfa8/9f3be99b66fa4c55b1d95b364a189b5f/FLAG282f6e666 [2019-10-15 01:16:13,200 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ebc3cfa8/9f3be99b66fa4c55b1d95b364a189b5f [2019-10-15 01:16:13,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:13,214 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:13,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:13,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:13,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:13,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:13" (1/1) ... [2019-10-15 01:16:13,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@489c2918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:13, skipping insertion in model container [2019-10-15 01:16:13,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:13" (1/1) ... [2019-10-15 01:16:13,230 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:13,310 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:14,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:14,110 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:14,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:14,431 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:14,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:14 WrapperNode [2019-10-15 01:16:14,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:14,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:14,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:14,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:14,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:14" (1/1) ... [2019-10-15 01:16:14,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:14" (1/1) ... [2019-10-15 01:16:14,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:14" (1/1) ... [2019-10-15 01:16:14,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:14" (1/1) ... [2019-10-15 01:16:14,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:14" (1/1) ... [2019-10-15 01:16:14,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:14" (1/1) ... [2019-10-15 01:16:14,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:14" (1/1) ... [2019-10-15 01:16:14,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:14,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:14,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:14,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:14,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:14,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:14,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:14,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:14,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:14,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:14,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:14,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:14,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:14,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:14,716 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:14,716 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:14,717 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:14,717 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:14,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:14,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:14,718 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:14,721 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:14,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:14,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:16:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:16:14,728 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:16:14,728 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:14,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:14,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:14,729 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:14,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:14,734 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:14,734 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:14,734 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:14,735 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:14,735 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:14,735 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:14,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:14,737 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:14,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:14,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:14,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:14,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:14,739 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:16:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 01:16:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:16:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:16:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:16:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:16:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:14,746 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:14,746 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:14,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:14,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:14,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:14,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:14,747 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:14,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:14,747 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:14,747 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:14,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:14,747 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:14,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:14,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:14,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:14,748 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:14,748 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:14,748 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:14,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:14,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:14,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:14,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:14,749 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:14,749 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:16:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:16:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:16:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:16:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:16:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:16:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:16:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 01:16:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:16:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:16,825 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:16,825 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:16,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:16 BoogieIcfgContainer [2019-10-15 01:16:16,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:16,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:16,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:16,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:16,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:13" (1/3) ... [2019-10-15 01:16:16,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25846862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:16, skipping insertion in model container [2019-10-15 01:16:16,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:14" (2/3) ... [2019-10-15 01:16:16,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25846862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:16, skipping insertion in model container [2019-10-15 01:16:16,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:16" (3/3) ... [2019-10-15 01:16:16,838 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product26.cil.c [2019-10-15 01:16:16,848 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:16,861 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:16,873 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:16,916 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:16,916 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:16,919 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:16,920 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:16,920 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:16,920 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:16,921 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:16,921 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:16,961 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states. [2019-10-15 01:16:17,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-15 01:16:17,011 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:17,012 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:17,016 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:17,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:17,022 INFO L82 PathProgramCache]: Analyzing trace with hash 430115854, now seen corresponding path program 1 times [2019-10-15 01:16:17,032 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:17,032 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516820695] [2019-10-15 01:16:17,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:17,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:17,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:17,758 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:17,759 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516820695] [2019-10-15 01:16:17,761 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:17,761 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:16:17,762 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148901294] [2019-10-15 01:16:17,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:16:17,770 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:17,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:16:17,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:17,794 INFO L87 Difference]: Start difference. First operand 609 states. Second operand 2 states. [2019-10-15 01:16:17,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:17,880 INFO L93 Difference]: Finished difference Result 893 states and 1209 transitions. [2019-10-15 01:16:17,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:16:17,882 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 185 [2019-10-15 01:16:17,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:17,922 INFO L225 Difference]: With dead ends: 893 [2019-10-15 01:16:17,922 INFO L226 Difference]: Without dead ends: 580 [2019-10-15 01:16:17,937 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:17,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2019-10-15 01:16:18,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2019-10-15 01:16:18,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-10-15 01:16:18,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 790 transitions. [2019-10-15 01:16:18,094 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 790 transitions. Word has length 185 [2019-10-15 01:16:18,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:18,098 INFO L462 AbstractCegarLoop]: Abstraction has 580 states and 790 transitions. [2019-10-15 01:16:18,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:16:18,099 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 790 transitions. [2019-10-15 01:16:18,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-15 01:16:18,107 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:18,108 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:18,108 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:18,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:18,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1045148671, now seen corresponding path program 1 times [2019-10-15 01:16:18,109 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:18,109 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279594684] [2019-10-15 01:16:18,109 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,109 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:18,537 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279594684] [2019-10-15 01:16:18,537 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:18,537 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:18,537 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136669442] [2019-10-15 01:16:18,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:18,540 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:18,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:18,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:18,540 INFO L87 Difference]: Start difference. First operand 580 states and 790 transitions. Second operand 3 states. [2019-10-15 01:16:18,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:18,604 INFO L93 Difference]: Finished difference Result 876 states and 1174 transitions. [2019-10-15 01:16:18,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:18,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-15 01:16:18,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:18,609 INFO L225 Difference]: With dead ends: 876 [2019-10-15 01:16:18,610 INFO L226 Difference]: Without dead ends: 583 [2019-10-15 01:16:18,612 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:18,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-10-15 01:16:18,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 582. [2019-10-15 01:16:18,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2019-10-15 01:16:18,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 792 transitions. [2019-10-15 01:16:18,643 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 792 transitions. Word has length 186 [2019-10-15 01:16:18,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:18,644 INFO L462 AbstractCegarLoop]: Abstraction has 582 states and 792 transitions. [2019-10-15 01:16:18,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 792 transitions. [2019-10-15 01:16:18,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:16:18,651 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:18,651 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] [2019-10-15 01:16:18,651 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:18,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:18,652 INFO L82 PathProgramCache]: Analyzing trace with hash -637450832, now seen corresponding path program 1 times [2019-10-15 01:16:18,652 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:18,652 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627234545] [2019-10-15 01:16:18,652 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:18,851 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:18,851 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627234545] [2019-10-15 01:16:18,851 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:18,852 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:18,852 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514130717] [2019-10-15 01:16:18,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:18,853 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:18,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:18,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:18,854 INFO L87 Difference]: Start difference. First operand 582 states and 792 transitions. Second operand 3 states. [2019-10-15 01:16:18,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:18,891 INFO L93 Difference]: Finished difference Result 1144 states and 1588 transitions. [2019-10-15 01:16:18,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:18,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2019-10-15 01:16:18,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:18,896 INFO L225 Difference]: With dead ends: 1144 [2019-10-15 01:16:18,896 INFO L226 Difference]: Without dead ends: 627 [2019-10-15 01:16:18,898 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:18,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2019-10-15 01:16:18,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 626. [2019-10-15 01:16:18,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 626 states. [2019-10-15 01:16:18,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 867 transitions. [2019-10-15 01:16:18,925 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 867 transitions. Word has length 198 [2019-10-15 01:16:18,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:18,926 INFO L462 AbstractCegarLoop]: Abstraction has 626 states and 867 transitions. [2019-10-15 01:16:18,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:18,926 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 867 transitions. [2019-10-15 01:16:18,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-15 01:16:18,931 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:18,932 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] [2019-10-15 01:16:18,932 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:18,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:18,933 INFO L82 PathProgramCache]: Analyzing trace with hash 785310459, now seen corresponding path program 1 times [2019-10-15 01:16:18,933 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:18,933 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864701546] [2019-10-15 01:16:18,934 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,934 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:19,160 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:19,160 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864701546] [2019-10-15 01:16:19,160 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:19,160 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:19,161 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378912780] [2019-10-15 01:16:19,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:19,162 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:19,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:19,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:19,163 INFO L87 Difference]: Start difference. First operand 626 states and 867 transitions. Second operand 3 states. [2019-10-15 01:16:19,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:19,203 INFO L93 Difference]: Finished difference Result 1273 states and 1808 transitions. [2019-10-15 01:16:19,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:19,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-15 01:16:19,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:19,211 INFO L225 Difference]: With dead ends: 1273 [2019-10-15 01:16:19,211 INFO L226 Difference]: Without dead ends: 712 [2019-10-15 01:16:19,213 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:19,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2019-10-15 01:16:19,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 711. [2019-10-15 01:16:19,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 711 states. [2019-10-15 01:16:19,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 1011 transitions. [2019-10-15 01:16:19,244 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 1011 transitions. Word has length 199 [2019-10-15 01:16:19,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:19,245 INFO L462 AbstractCegarLoop]: Abstraction has 711 states and 1011 transitions. [2019-10-15 01:16:19,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:19,245 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 1011 transitions. [2019-10-15 01:16:19,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 01:16:19,250 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:19,250 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:19,251 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:19,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:19,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1620732756, now seen corresponding path program 1 times [2019-10-15 01:16:19,251 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:19,251 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448852137] [2019-10-15 01:16:19,252 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:19,252 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:19,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:19,597 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:19,598 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448852137] [2019-10-15 01:16:19,599 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:19,599 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:19,599 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20285481] [2019-10-15 01:16:19,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:19,601 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:19,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:19,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:19,604 INFO L87 Difference]: Start difference. First operand 711 states and 1011 transitions. Second operand 11 states. [2019-10-15 01:16:25,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:25,803 INFO L93 Difference]: Finished difference Result 3178 states and 4511 transitions. [2019-10-15 01:16:25,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 01:16:25,804 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 202 [2019-10-15 01:16:25,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:25,823 INFO L225 Difference]: With dead ends: 3178 [2019-10-15 01:16:25,823 INFO L226 Difference]: Without dead ends: 2898 [2019-10-15 01:16:25,827 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-15 01:16:25,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2019-10-15 01:16:26,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 2877. [2019-10-15 01:16:26,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2877 states. [2019-10-15 01:16:26,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 4036 transitions. [2019-10-15 01:16:26,025 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 4036 transitions. Word has length 202 [2019-10-15 01:16:26,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:26,027 INFO L462 AbstractCegarLoop]: Abstraction has 2877 states and 4036 transitions. [2019-10-15 01:16:26,027 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:26,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 4036 transitions. [2019-10-15 01:16:26,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:16:26,033 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:26,033 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:26,034 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:26,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:26,034 INFO L82 PathProgramCache]: Analyzing trace with hash 246930665, now seen corresponding path program 1 times [2019-10-15 01:16:26,035 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:26,035 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796431568] [2019-10-15 01:16:26,035 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:26,035 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:26,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:26,370 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:26,370 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796431568] [2019-10-15 01:16:26,370 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:26,371 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:16:26,371 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802617476] [2019-10-15 01:16:26,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:16:26,372 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:26,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:16:26,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:16:26,372 INFO L87 Difference]: Start difference. First operand 2877 states and 4036 transitions. Second operand 18 states. [2019-10-15 01:16:27,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:27,015 INFO L93 Difference]: Finished difference Result 5358 states and 7607 transitions. [2019-10-15 01:16:27,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:16:27,016 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 203 [2019-10-15 01:16:27,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:27,035 INFO L225 Difference]: With dead ends: 5358 [2019-10-15 01:16:27,036 INFO L226 Difference]: Without dead ends: 2894 [2019-10-15 01:16:27,045 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:16:27,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2019-10-15 01:16:27,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 2892. [2019-10-15 01:16:27,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2892 states. [2019-10-15 01:16:27,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 4041 transitions. [2019-10-15 01:16:27,202 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 4041 transitions. Word has length 203 [2019-10-15 01:16:27,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:27,204 INFO L462 AbstractCegarLoop]: Abstraction has 2892 states and 4041 transitions. [2019-10-15 01:16:27,205 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:16:27,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 4041 transitions. [2019-10-15 01:16:27,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-15 01:16:27,210 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:27,210 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:27,210 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:27,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:27,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1013825460, now seen corresponding path program 1 times [2019-10-15 01:16:27,211 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:27,211 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382694879] [2019-10-15 01:16:27,211 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:27,212 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:27,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:27,482 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:27,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382694879] [2019-10-15 01:16:27,483 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:27,484 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:16:27,484 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558479010] [2019-10-15 01:16:27,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:16:27,486 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:27,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:16:27,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:16:27,487 INFO L87 Difference]: Start difference. First operand 2892 states and 4041 transitions. Second operand 6 states. [2019-10-15 01:16:28,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:28,366 INFO L93 Difference]: Finished difference Result 8304 states and 11749 transitions. [2019-10-15 01:16:28,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:16:28,367 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 212 [2019-10-15 01:16:28,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:28,421 INFO L225 Difference]: With dead ends: 8304 [2019-10-15 01:16:28,421 INFO L226 Difference]: Without dead ends: 5871 [2019-10-15 01:16:28,441 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:16:28,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5871 states. [2019-10-15 01:16:28,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5871 to 5800. [2019-10-15 01:16:28,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5800 states. [2019-10-15 01:16:28,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5800 states to 5800 states and 8205 transitions. [2019-10-15 01:16:28,854 INFO L78 Accepts]: Start accepts. Automaton has 5800 states and 8205 transitions. Word has length 212 [2019-10-15 01:16:28,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:28,857 INFO L462 AbstractCegarLoop]: Abstraction has 5800 states and 8205 transitions. [2019-10-15 01:16:28,857 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:16:28,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5800 states and 8205 transitions. [2019-10-15 01:16:28,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 01:16:28,866 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:28,866 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:28,867 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:28,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:28,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1460198811, now seen corresponding path program 1 times [2019-10-15 01:16:28,867 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:28,868 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801361444] [2019-10-15 01:16:28,868 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:28,868 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:28,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:29,053 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:29,054 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801361444] [2019-10-15 01:16:29,054 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:29,054 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:16:29,054 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147149104] [2019-10-15 01:16:29,056 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:16:29,056 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:29,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:16:29,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:16:29,057 INFO L87 Difference]: Start difference. First operand 5800 states and 8205 transitions. Second operand 5 states. [2019-10-15 01:16:30,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:30,804 INFO L93 Difference]: Finished difference Result 21559 states and 30658 transitions. [2019-10-15 01:16:30,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:30,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 213 [2019-10-15 01:16:30,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:30,924 INFO L225 Difference]: With dead ends: 21559 [2019-10-15 01:16:30,924 INFO L226 Difference]: Without dead ends: 16610 [2019-10-15 01:16:30,955 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:16:30,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16610 states. [2019-10-15 01:16:31,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16610 to 16514. [2019-10-15 01:16:31,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16514 states. [2019-10-15 01:16:32,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16514 states to 16514 states and 23470 transitions. [2019-10-15 01:16:32,826 INFO L78 Accepts]: Start accepts. Automaton has 16514 states and 23470 transitions. Word has length 213 [2019-10-15 01:16:32,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:32,827 INFO L462 AbstractCegarLoop]: Abstraction has 16514 states and 23470 transitions. [2019-10-15 01:16:32,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:16:32,827 INFO L276 IsEmpty]: Start isEmpty. Operand 16514 states and 23470 transitions. [2019-10-15 01:16:32,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 01:16:32,840 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:32,840 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:32,840 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:32,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:32,841 INFO L82 PathProgramCache]: Analyzing trace with hash -2046974930, now seen corresponding path program 1 times [2019-10-15 01:16:32,841 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:32,841 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377045995] [2019-10-15 01:16:32,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:32,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:32,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:33,070 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:33,070 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377045995] [2019-10-15 01:16:33,070 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:33,071 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:33,071 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476316822] [2019-10-15 01:16:33,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:33,072 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:33,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:33,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:33,072 INFO L87 Difference]: Start difference. First operand 16514 states and 23470 transitions. Second operand 11 states. [2019-10-15 01:16:34,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:34,075 INFO L93 Difference]: Finished difference Result 31215 states and 43918 transitions. [2019-10-15 01:16:34,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:16:34,075 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 213 [2019-10-15 01:16:34,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:34,167 INFO L225 Difference]: With dead ends: 31215 [2019-10-15 01:16:34,167 INFO L226 Difference]: Without dead ends: 16438 [2019-10-15 01:16:34,225 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:16:34,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16438 states. [2019-10-15 01:16:34,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16438 to 16386. [2019-10-15 01:16:34,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16386 states. [2019-10-15 01:16:35,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16386 states to 16386 states and 23087 transitions. [2019-10-15 01:16:35,064 INFO L78 Accepts]: Start accepts. Automaton has 16386 states and 23087 transitions. Word has length 213 [2019-10-15 01:16:35,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:35,065 INFO L462 AbstractCegarLoop]: Abstraction has 16386 states and 23087 transitions. [2019-10-15 01:16:35,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:35,065 INFO L276 IsEmpty]: Start isEmpty. Operand 16386 states and 23087 transitions. [2019-10-15 01:16:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-15 01:16:35,080 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:35,080 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:35,080 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:35,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:35,081 INFO L82 PathProgramCache]: Analyzing trace with hash 975255081, now seen corresponding path program 1 times [2019-10-15 01:16:35,081 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:35,081 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133600705] [2019-10-15 01:16:35,082 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:35,082 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:35,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:35,248 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:35,248 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133600705] [2019-10-15 01:16:35,251 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:35,251 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:35,251 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236983358] [2019-10-15 01:16:35,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:35,253 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:35,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:35,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:35,253 INFO L87 Difference]: Start difference. First operand 16386 states and 23087 transitions. Second operand 3 states. [2019-10-15 01:16:35,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:35,820 INFO L93 Difference]: Finished difference Result 33367 states and 47315 transitions. [2019-10-15 01:16:35,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:35,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2019-10-15 01:16:35,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:35,890 INFO L225 Difference]: With dead ends: 33367 [2019-10-15 01:16:35,890 INFO L226 Difference]: Without dead ends: 17046 [2019-10-15 01:16:35,933 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:35,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17046 states. [2019-10-15 01:16:36,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17046 to 17042. [2019-10-15 01:16:36,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17042 states. [2019-10-15 01:16:36,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17042 states to 17042 states and 24281 transitions. [2019-10-15 01:16:36,611 INFO L78 Accepts]: Start accepts. Automaton has 17042 states and 24281 transitions. Word has length 249 [2019-10-15 01:16:36,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:36,613 INFO L462 AbstractCegarLoop]: Abstraction has 17042 states and 24281 transitions. [2019-10-15 01:16:36,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:36,613 INFO L276 IsEmpty]: Start isEmpty. Operand 17042 states and 24281 transitions. [2019-10-15 01:16:36,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-10-15 01:16:36,632 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:36,632 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:36,633 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:36,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:36,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1474259572, now seen corresponding path program 1 times [2019-10-15 01:16:36,633 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:36,634 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524527706] [2019-10-15 01:16:36,634 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:36,634 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:36,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:36,854 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:36,854 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524527706] [2019-10-15 01:16:36,854 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:36,855 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:36,855 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339390690] [2019-10-15 01:16:36,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:36,856 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:36,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:36,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:36,856 INFO L87 Difference]: Start difference. First operand 17042 states and 24281 transitions. Second operand 8 states. [2019-10-15 01:16:42,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:42,468 INFO L93 Difference]: Finished difference Result 51492 states and 74833 transitions. [2019-10-15 01:16:42,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:42,469 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 235 [2019-10-15 01:16:42,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:42,631 INFO L225 Difference]: With dead ends: 51492 [2019-10-15 01:16:42,631 INFO L226 Difference]: Without dead ends: 34515 [2019-10-15 01:16:42,685 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:42,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34515 states.