java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:16:31,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:16:31,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:16:31,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:16:31,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:16:31,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:16:31,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:16:31,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:16:31,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:16:31,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:16:31,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:16:31,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:16:31,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:16:31,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:16:31,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:16:31,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:16:31,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:16:31,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:16:31,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:16:31,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:16:31,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:16:31,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:16:31,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:16:31,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:16:31,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:16:31,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:16:31,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:16:31,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:16:31,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:16:31,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:16:31,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:16:31,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:16:31,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:16:31,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:16:31,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:16:31,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:16:31,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:16:31,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:16:31,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:16:31,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:16:31,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:16:31,440 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:16:31,460 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:16:31,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:16:31,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:16:31,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:16:31,464 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:16:31,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:16:31,465 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:16:31,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:16:31,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:16:31,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:16:31,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:16:31,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:16:31,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:16:31,467 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:16:31,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:16:31,468 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:16:31,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:16:31,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:16:31,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:16:31,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:16:31,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:16:31,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:16:31,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:16:31,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:16:31,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:16:31,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:16:31,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:16:31,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:16:31,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:16:31,766 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:16:31,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:16:31,782 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:16:31,783 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:16:31,783 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:16:31,784 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product29.cil.c [2019-10-13 21:16:31,841 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/363b4cae7/16c4eb954d7241a4a0a8c471877b12dd/FLAG55e899d8e [2019-10-13 21:16:32,457 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:16:32,458 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product29.cil.c [2019-10-13 21:16:32,490 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/363b4cae7/16c4eb954d7241a4a0a8c471877b12dd/FLAG55e899d8e [2019-10-13 21:16:32,693 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/363b4cae7/16c4eb954d7241a4a0a8c471877b12dd [2019-10-13 21:16:32,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:16:32,706 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:16:32,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:16:32,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:16:32,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:16:32,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:16:32" (1/1) ... [2019-10-13 21:16:32,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2feeb304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:32, skipping insertion in model container [2019-10-13 21:16:32,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:16:32" (1/1) ... [2019-10-13 21:16:32,721 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:16:32,785 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:16:33,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:16:33,494 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:16:33,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:16:33,738 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:16:33,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:33 WrapperNode [2019-10-13 21:16:33,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:16:33,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:16:33,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:16:33,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:16:33,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:33" (1/1) ... [2019-10-13 21:16:33,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:33" (1/1) ... [2019-10-13 21:16:33,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:33" (1/1) ... [2019-10-13 21:16:33,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:33" (1/1) ... [2019-10-13 21:16:33,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:33" (1/1) ... [2019-10-13 21:16:33,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:33" (1/1) ... [2019-10-13 21:16:33,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:33" (1/1) ... [2019-10-13 21:16:33,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:16:33,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:16:33,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:16:33,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:16:33,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:16:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:16:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:16:33,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:16:33,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:16:33,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:16:33,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:16:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:16:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:16:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:16:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:16:33,979 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:16:33,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:16:33,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:16:33,979 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:16:33,979 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:16:33,980 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:16:33,980 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:16:33,980 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:16:33,980 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:16:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:16:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:16:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:16:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:16:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:16:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:16:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:16:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:16:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:16:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:16:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:16:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:16:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 21:16:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:16:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:16:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:16:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:16:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:16:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:16:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:16:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:16:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:16:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:16:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:16:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:16:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:16:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:16:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:16:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:16:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:16:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:16:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:16:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:16:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:16:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:16:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:16:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:16:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:16:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:16:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:16:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:16:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:16:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:16:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:16:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:16:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:16:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:16:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:16:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:16:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:16:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:16:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:16:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:16:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:16:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:16:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:16:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:16:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:16:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:16:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:16:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:16:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:16:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:16:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:16:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:16:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:16:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:16:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:16:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:16:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:16:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:16:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:16:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:16:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:16:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:16:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-13 21:16:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:16:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:16:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:16:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:16:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:16:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:16:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:16:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:16:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:16:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:16:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:16:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:16:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:16:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:16:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:16:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:16:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:16:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:16:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:16:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:16:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:16:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:16:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:16:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:16:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:16:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:16:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:16:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:16:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:16:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:16:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:16:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:16:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:16:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:16:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:16:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:16:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:16:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:16:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:16:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:16:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:16:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:16:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:16:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:16:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:16:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:16:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:16:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:16:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:16:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:16:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:16:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:16:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:16:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:16:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:16:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:16:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:16:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:16:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:16:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:16:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:16:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:16:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:16:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:16:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:16:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:16:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:16:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:16:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:16:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:16:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:16:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:16:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:16:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:16:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:16:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:16:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:16:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:16:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:16:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:16:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:16:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:16:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:16:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:16:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:16:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:16:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:16:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:16:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:16:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:16:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:16:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:16:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:16:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:16:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:16:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:16:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:16:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 21:16:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:16:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:16:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:16:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:16:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:16:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:16:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:16:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:16:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:16:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:16:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:16:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:16:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:16:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:16:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:16:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:16:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:16:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:16:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:16:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:16:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:16:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:16:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:16:34,011 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:16:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:16:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:16:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:16:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:16:34,012 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:16:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:16:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:16:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:16:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:16:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:16:34,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-13 21:16:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:16:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:16:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:16:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:16:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:16:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:16:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:16:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:16:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:16:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:16:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:16:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:16:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:16:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:16:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:16:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:16:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:16:36,123 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:16:36,123 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:16:36,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:16:36 BoogieIcfgContainer [2019-10-13 21:16:36,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:16:36,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:16:36,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:16:36,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:16:36,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:16:32" (1/3) ... [2019-10-13 21:16:36,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa0df20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:16:36, skipping insertion in model container [2019-10-13 21:16:36,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:33" (2/3) ... [2019-10-13 21:16:36,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa0df20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:16:36, skipping insertion in model container [2019-10-13 21:16:36,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:16:36" (3/3) ... [2019-10-13 21:16:36,134 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product29.cil.c [2019-10-13 21:16:36,144 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:16:36,160 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:16:36,171 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:16:36,221 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:16:36,221 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:16:36,222 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:16:36,223 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:16:36,226 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:16:36,226 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:16:36,226 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:16:36,227 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:16:36,266 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states. [2019-10-13 21:16:36,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-13 21:16:36,303 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:36,309 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:36,312 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:36,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:36,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1933710850, now seen corresponding path program 1 times [2019-10-13 21:16:36,329 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:36,330 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072384705] [2019-10-13 21:16:36,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:36,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:36,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:37,081 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:16:37,082 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072384705] [2019-10-13 21:16:37,082 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:37,083 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:16:37,083 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616263291] [2019-10-13 21:16:37,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:16:37,092 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:37,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:16:37,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:16:37,110 INFO L87 Difference]: Start difference. First operand 602 states. Second operand 2 states. [2019-10-13 21:16:37,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:37,216 INFO L93 Difference]: Finished difference Result 845 states and 1153 transitions. [2019-10-13 21:16:37,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:16:37,221 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 173 [2019-10-13 21:16:37,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:37,255 INFO L225 Difference]: With dead ends: 845 [2019-10-13 21:16:37,256 INFO L226 Difference]: Without dead ends: 545 [2019-10-13 21:16:37,264 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:16:37,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2019-10-13 21:16:37,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2019-10-13 21:16:37,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2019-10-13 21:16:37,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 748 transitions. [2019-10-13 21:16:37,384 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 748 transitions. Word has length 173 [2019-10-13 21:16:37,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:37,387 INFO L462 AbstractCegarLoop]: Abstraction has 545 states and 748 transitions. [2019-10-13 21:16:37,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:16:37,387 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 748 transitions. [2019-10-13 21:16:37,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 21:16:37,392 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:37,392 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:37,393 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:37,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:37,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1848846547, now seen corresponding path program 1 times [2019-10-13 21:16:37,393 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:37,394 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292898350] [2019-10-13 21:16:37,394 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:37,394 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:37,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:37,773 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:16:37,774 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292898350] [2019-10-13 21:16:37,774 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:37,775 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:16:37,775 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736941554] [2019-10-13 21:16:37,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:16:37,784 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:37,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:16:37,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:16:37,785 INFO L87 Difference]: Start difference. First operand 545 states and 748 transitions. Second operand 3 states. [2019-10-13 21:16:37,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:37,907 INFO L93 Difference]: Finished difference Result 828 states and 1118 transitions. [2019-10-13 21:16:37,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:16:37,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-13 21:16:37,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:37,918 INFO L225 Difference]: With dead ends: 828 [2019-10-13 21:16:37,918 INFO L226 Difference]: Without dead ends: 548 [2019-10-13 21:16:37,927 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:16:37,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2019-10-13 21:16:37,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 547. [2019-10-13 21:16:37,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2019-10-13 21:16:37,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 750 transitions. [2019-10-13 21:16:37,998 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 750 transitions. Word has length 174 [2019-10-13 21:16:38,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:38,000 INFO L462 AbstractCegarLoop]: Abstraction has 547 states and 750 transitions. [2019-10-13 21:16:38,001 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:16:38,001 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 750 transitions. [2019-10-13 21:16:38,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-13 21:16:38,014 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:38,015 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:38,015 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:38,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:38,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1241537791, now seen corresponding path program 1 times [2019-10-13 21:16:38,016 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:38,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81286204] [2019-10-13 21:16:38,017 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:38,017 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:38,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:38,317 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:16:38,317 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81286204] [2019-10-13 21:16:38,318 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:38,318 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:16:38,318 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064696272] [2019-10-13 21:16:38,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:16:38,323 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:38,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:16:38,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:16:38,324 INFO L87 Difference]: Start difference. First operand 547 states and 750 transitions. Second operand 3 states. [2019-10-13 21:16:38,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:38,384 INFO L93 Difference]: Finished difference Result 1070 states and 1498 transitions. [2019-10-13 21:16:38,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:16:38,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-13 21:16:38,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:38,394 INFO L225 Difference]: With dead ends: 1070 [2019-10-13 21:16:38,395 INFO L226 Difference]: Without dead ends: 588 [2019-10-13 21:16:38,397 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:16:38,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2019-10-13 21:16:38,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 587. [2019-10-13 21:16:38,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2019-10-13 21:16:38,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 819 transitions. [2019-10-13 21:16:38,437 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 819 transitions. Word has length 180 [2019-10-13 21:16:38,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:38,439 INFO L462 AbstractCegarLoop]: Abstraction has 587 states and 819 transitions. [2019-10-13 21:16:38,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:16:38,439 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 819 transitions. [2019-10-13 21:16:38,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-13 21:16:38,447 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:38,447 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] [2019-10-13 21:16:38,447 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:38,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:38,452 INFO L82 PathProgramCache]: Analyzing trace with hash -2124332308, now seen corresponding path program 1 times [2019-10-13 21:16:38,453 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:38,453 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175649366] [2019-10-13 21:16:38,453 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:38,453 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:38,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:38,756 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:16:38,758 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175649366] [2019-10-13 21:16:38,760 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:38,760 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:16:38,760 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411379939] [2019-10-13 21:16:38,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:16:38,761 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:38,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:16:38,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:16:38,762 INFO L87 Difference]: Start difference. First operand 587 states and 819 transitions. Second operand 7 states. [2019-10-13 21:16:42,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:42,046 INFO L93 Difference]: Finished difference Result 1139 states and 1552 transitions. [2019-10-13 21:16:42,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:16:42,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2019-10-13 21:16:42,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:42,053 INFO L225 Difference]: With dead ends: 1139 [2019-10-13 21:16:42,054 INFO L226 Difference]: Without dead ends: 870 [2019-10-13 21:16:42,055 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:16:42,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-10-13 21:16:42,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 861. [2019-10-13 21:16:42,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2019-10-13 21:16:42,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1182 transitions. [2019-10-13 21:16:42,100 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1182 transitions. Word has length 181 [2019-10-13 21:16:42,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:42,101 INFO L462 AbstractCegarLoop]: Abstraction has 861 states and 1182 transitions. [2019-10-13 21:16:42,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:16:42,101 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1182 transitions. [2019-10-13 21:16:42,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-13 21:16:42,105 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:42,105 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] [2019-10-13 21:16:42,105 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:42,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:42,106 INFO L82 PathProgramCache]: Analyzing trace with hash 176199948, now seen corresponding path program 1 times [2019-10-13 21:16:42,106 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:42,106 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457403914] [2019-10-13 21:16:42,107 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:42,107 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:42,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:42,570 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:16:42,571 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457403914] [2019-10-13 21:16:42,571 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:42,571 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-13 21:16:42,572 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39533061] [2019-10-13 21:16:42,572 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-13 21:16:42,572 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:42,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-13 21:16:42,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-13 21:16:42,574 INFO L87 Difference]: Start difference. First operand 861 states and 1182 transitions. Second operand 20 states. [2019-10-13 21:16:43,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:43,164 INFO L93 Difference]: Finished difference Result 1520 states and 2076 transitions. [2019-10-13 21:16:43,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-13 21:16:43,165 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 182 [2019-10-13 21:16:43,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:43,172 INFO L225 Difference]: With dead ends: 1520 [2019-10-13 21:16:43,173 INFO L226 Difference]: Without dead ends: 971 [2019-10-13 21:16:43,175 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-13 21:16:43,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2019-10-13 21:16:43,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 969. [2019-10-13 21:16:43,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 969 states. [2019-10-13 21:16:43,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1333 transitions. [2019-10-13 21:16:43,232 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1333 transitions. Word has length 182 [2019-10-13 21:16:43,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:43,234 INFO L462 AbstractCegarLoop]: Abstraction has 969 states and 1333 transitions. [2019-10-13 21:16:43,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-13 21:16:43,235 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1333 transitions. [2019-10-13 21:16:43,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-13 21:16:43,238 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:43,239 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:43,239 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:43,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:43,239 INFO L82 PathProgramCache]: Analyzing trace with hash -427472189, now seen corresponding path program 1 times [2019-10-13 21:16:43,240 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:43,240 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800265821] [2019-10-13 21:16:43,240 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:43,240 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:43,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:16:43,513 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800265821] [2019-10-13 21:16:43,515 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:43,515 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:16:43,515 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89131000] [2019-10-13 21:16:43,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:16:43,516 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:43,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:16:43,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:16:43,517 INFO L87 Difference]: Start difference. First operand 969 states and 1333 transitions. Second operand 8 states. [2019-10-13 21:16:44,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:44,403 INFO L93 Difference]: Finished difference Result 2122 states and 2888 transitions. [2019-10-13 21:16:44,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 21:16:44,404 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2019-10-13 21:16:44,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:44,418 INFO L225 Difference]: With dead ends: 2122 [2019-10-13 21:16:44,418 INFO L226 Difference]: Without dead ends: 1665 [2019-10-13 21:16:44,424 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:16:44,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2019-10-13 21:16:44,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1646. [2019-10-13 21:16:44,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2019-10-13 21:16:44,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2251 transitions. [2019-10-13 21:16:44,524 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2251 transitions. Word has length 191 [2019-10-13 21:16:44,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:44,525 INFO L462 AbstractCegarLoop]: Abstraction has 1646 states and 2251 transitions. [2019-10-13 21:16:44,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:16:44,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2251 transitions. [2019-10-13 21:16:44,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 21:16:44,530 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:44,530 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] [2019-10-13 21:16:44,531 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:44,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:44,531 INFO L82 PathProgramCache]: Analyzing trace with hash 304313995, now seen corresponding path program 1 times [2019-10-13 21:16:44,531 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:44,531 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765435928] [2019-10-13 21:16:44,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:44,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:44,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:44,990 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-13 21:16:44,990 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765435928] [2019-10-13 21:16:44,990 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:44,991 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:16:44,991 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57039114] [2019-10-13 21:16:44,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:16:44,992 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:44,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:16:44,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:16:44,993 INFO L87 Difference]: Start difference. First operand 1646 states and 2251 transitions. Second operand 19 states. [2019-10-13 21:16:46,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:46,084 INFO L93 Difference]: Finished difference Result 2287 states and 3115 transitions. [2019-10-13 21:16:46,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-13 21:16:46,085 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 192 [2019-10-13 21:16:46,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:46,101 INFO L225 Difference]: With dead ends: 2287 [2019-10-13 21:16:46,101 INFO L226 Difference]: Without dead ends: 1645 [2019-10-13 21:16:46,105 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 21:16:46,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2019-10-13 21:16:46,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1644. [2019-10-13 21:16:46,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1644 states. [2019-10-13 21:16:46,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2246 transitions. [2019-10-13 21:16:46,197 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2246 transitions. Word has length 192 [2019-10-13 21:16:46,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:46,198 INFO L462 AbstractCegarLoop]: Abstraction has 1644 states and 2246 transitions. [2019-10-13 21:16:46,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:16:46,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2246 transitions. [2019-10-13 21:16:46,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 21:16:46,202 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:46,203 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] [2019-10-13 21:16:46,203 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:46,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:46,203 INFO L82 PathProgramCache]: Analyzing trace with hash 383856407, now seen corresponding path program 2 times [2019-10-13 21:16:46,204 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:46,204 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355564378] [2019-10-13 21:16:46,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:46,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:46,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:46,491 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-13 21:16:46,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355564378] [2019-10-13 21:16:46,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657091044] [2019-10-13 21:16:46,492 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:16:46,982 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-13 21:16:46,982 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 21:16:46,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 2125 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-13 21:16:47,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:16:47,269 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 21:16:47,270 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:16:47,839 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 21:16:47,840 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:16:47,840 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-10-13 21:16:47,840 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765082785] [2019-10-13 21:16:47,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 21:16:47,842 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:47,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 21:16:47,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-10-13 21:16:47,843 INFO L87 Difference]: Start difference. First operand 1644 states and 2246 transitions. Second operand 14 states. [2019-10-13 21:16:50,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:50,156 INFO L93 Difference]: Finished difference Result 4904 states and 6737 transitions. [2019-10-13 21:16:50,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-13 21:16:50,157 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 192 [2019-10-13 21:16:50,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:50,197 INFO L225 Difference]: With dead ends: 4904 [2019-10-13 21:16:50,197 INFO L226 Difference]: Without dead ends: 4901 [2019-10-13 21:16:50,203 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 378 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=178, Invalid=1228, Unknown=0, NotChecked=0, Total=1406 [2019-10-13 21:16:50,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4901 states. [2019-10-13 21:16:50,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4901 to 3532. [2019-10-13 21:16:50,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3532 states. [2019-10-13 21:16:50,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 4906 transitions. [2019-10-13 21:16:50,608 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 4906 transitions. Word has length 192 [2019-10-13 21:16:50,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:50,610 INFO L462 AbstractCegarLoop]: Abstraction has 3532 states and 4906 transitions. [2019-10-13 21:16:50,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 21:16:50,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 4906 transitions. [2019-10-13 21:16:50,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-13 21:16:50,624 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:50,625 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-13 21:16:50,832 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:16:50,832 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:50,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:50,833 INFO L82 PathProgramCache]: Analyzing trace with hash 2023623784, now seen corresponding path program 1 times [2019-10-13 21:16:50,833 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:50,833 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319954277] [2019-10-13 21:16:50,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:50,834 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:50,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:51,013 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-13 21:16:51,013 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319954277] [2019-10-13 21:16:51,014 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594562634] [2019-10-13 21:16:51,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:16:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:51,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 2795 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:16:51,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:16:51,938 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 21:16:51,938 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:16:52,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:16:52,335 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:16:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-13 21:16:52,381 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:16:52,381 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 16 [2019-10-13 21:16:52,382 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347812801] [2019-10-13 21:16:52,382 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:16:52,383 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:52,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:16:52,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:16:52,384 INFO L87 Difference]: Start difference. First operand 3532 states and 4906 transitions. Second operand 7 states. [2019-10-13 21:16:54,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:54,080 INFO L93 Difference]: Finished difference Result 7037 states and 9783 transitions. [2019-10-13 21:16:54,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:16:54,081 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2019-10-13 21:16:54,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:54,107 INFO L225 Difference]: With dead ends: 7037 [2019-10-13 21:16:54,107 INFO L226 Difference]: Without dead ends: 3544 [2019-10-13 21:16:54,123 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 379 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:16:54,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3544 states. [2019-10-13 21:16:54,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3544 to 3534. [2019-10-13 21:16:54,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3534 states. [2019-10-13 21:16:54,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3534 states to 3534 states and 4909 transitions. [2019-10-13 21:16:54,385 INFO L78 Accepts]: Start accepts. Automaton has 3534 states and 4909 transitions. Word has length 195 [2019-10-13 21:16:54,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:54,386 INFO L462 AbstractCegarLoop]: Abstraction has 3534 states and 4909 transitions. [2019-10-13 21:16:54,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:16:54,386 INFO L276 IsEmpty]: Start isEmpty. Operand 3534 states and 4909 transitions. [2019-10-13 21:16:54,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 21:16:54,404 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:54,405 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] [2019-10-13 21:16:54,615 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:16:54,616 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:54,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:54,616 INFO L82 PathProgramCache]: Analyzing trace with hash 340956968, now seen corresponding path program 1 times [2019-10-13 21:16:54,616 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:54,617 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103421429] [2019-10-13 21:16:54,617 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:54,618 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:54,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:54,758 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-13 21:16:54,762 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103421429] [2019-10-13 21:16:54,763 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998366392] [2019-10-13 21:16:54,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:16:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:55,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 2793 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:16:55,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:16:55,503 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 21:16:55,504 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:16:55,828 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:16:55,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:16:55,959 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:16:56,046 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-13 21:16:56,047 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:16:56,047 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 20 [2019-10-13 21:16:56,047 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678506781] [2019-10-13 21:16:56,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:16:56,048 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:56,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:16:56,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2019-10-13 21:16:56,049 INFO L87 Difference]: Start difference. First operand 3534 states and 4909 transitions. Second operand 9 states. [2019-10-13 21:16:58,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:58,001 INFO L93 Difference]: Finished difference Result 7044 states and 9793 transitions. [2019-10-13 21:16:58,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:16:58,002 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 196 [2019-10-13 21:16:58,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:58,034 INFO L225 Difference]: With dead ends: 7044 [2019-10-13 21:16:58,034 INFO L226 Difference]: Without dead ends: 3552 [2019-10-13 21:16:58,052 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 376 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2019-10-13 21:16:58,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2019-10-13 21:16:58,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3550. [2019-10-13 21:16:58,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3550 states. [2019-10-13 21:16:58,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 4925 transitions. [2019-10-13 21:16:58,294 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 4925 transitions. Word has length 196 [2019-10-13 21:16:58,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:58,295 INFO L462 AbstractCegarLoop]: Abstraction has 3550 states and 4925 transitions. [2019-10-13 21:16:58,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:16:58,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 4925 transitions. [2019-10-13 21:16:58,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-13 21:16:58,306 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:58,307 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-13 21:16:58,522 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:16:58,523 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:58,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:58,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1355981044, now seen corresponding path program 1 times [2019-10-13 21:16:58,524 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:58,525 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403643836] [2019-10-13 21:16:58,525 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:58,525 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:58,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-13 21:16:58,697 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403643836] [2019-10-13 21:16:58,697 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159134151] [2019-10-13 21:16:58,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:16:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:59,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 2794 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:16:59,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:16:59,408 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 21:16:59,408 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:16:59,773 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:16:59,853 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:16:59,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:17:00,024 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-13 21:17:00,025 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:17:00,025 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [7] total 21 [2019-10-13 21:17:00,025 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109041247] [2019-10-13 21:17:00,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 21:17:00,026 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:00,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 21:17:00,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2019-10-13 21:17:00,027 INFO L87 Difference]: Start difference. First operand 3550 states and 4925 transitions. Second operand 16 states. [2019-10-13 21:17:01,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:01,821 INFO L93 Difference]: Finished difference Result 7036 states and 9774 transitions. [2019-10-13 21:17:01,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 21:17:01,821 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 197 [2019-10-13 21:17:01,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:01,846 INFO L225 Difference]: With dead ends: 7036 [2019-10-13 21:17:01,846 INFO L226 Difference]: Without dead ends: 3574 [2019-10-13 21:17:01,859 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 378 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:17:01,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2019-10-13 21:17:02,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3572. [2019-10-13 21:17:02,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3572 states. [2019-10-13 21:17:02,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3572 states to 3572 states and 4950 transitions. [2019-10-13 21:17:02,069 INFO L78 Accepts]: Start accepts. Automaton has 3572 states and 4950 transitions. Word has length 197 [2019-10-13 21:17:02,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:02,070 INFO L462 AbstractCegarLoop]: Abstraction has 3572 states and 4950 transitions. [2019-10-13 21:17:02,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 21:17:02,070 INFO L276 IsEmpty]: Start isEmpty. Operand 3572 states and 4950 transitions. [2019-10-13 21:17:02,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:17:02,083 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:02,084 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-13 21:17:02,293 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:17:02,294 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:02,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:02,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1911228752, now seen corresponding path program 2 times [2019-10-13 21:17:02,295 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:02,295 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494376910] [2019-10-13 21:17:02,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:02,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:02,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:02,511 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:17:02,512 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494376910] [2019-10-13 21:17:02,512 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275373576] [2019-10-13 21:17:02,512 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:17:03,338 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-13 21:17:03,338 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat