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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:10:31,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:10:31,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:10:31,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:10:31,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:10:31,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:10:31,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:10:31,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:10:31,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:10:31,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:10:31,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:10:31,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:10:31,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:10:31,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:10:31,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:10:31,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:10:31,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:10:31,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:10:31,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:10:31,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:10:31,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:10:31,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:10:31,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:10:31,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:10:31,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:10:31,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:10:31,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:10:31,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:10:31,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:10:31,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:10:31,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:10:31,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:10:31,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:10:31,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:10:31,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:10:31,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:10:31,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:10:31,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:10:31,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:10:31,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:10:31,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:10:31,800 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 23:10:31,829 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:10:31,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:10:31,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:10:31,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:10:31,831 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:10:31,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:10:31,832 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:10:31,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:10:31,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:10:31,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:10:31,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:10:31,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:10:31,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:10:31,834 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:10:31,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:10:31,835 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:10:31,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:10:31,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:10:31,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:10:31,835 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:10:31,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:10:31,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:10:31,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:10:31,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:10:31,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:10:31,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:10:31,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:10:31,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:10:31,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:10:32,109 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:10:32,128 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:10:32,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:10:32,133 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:10:32,133 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:10:32,134 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product27.cil.c [2019-10-13 23:10:32,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0045647d/77edddf2c3d94761a34661b81faad4fe/FLAGb58967c3c [2019-10-13 23:10:32,776 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:10:32,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product27.cil.c [2019-10-13 23:10:32,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0045647d/77edddf2c3d94761a34661b81faad4fe/FLAGb58967c3c [2019-10-13 23:10:33,039 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0045647d/77edddf2c3d94761a34661b81faad4fe [2019-10-13 23:10:33,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:10:33,050 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:10:33,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:10:33,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:10:33,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:10:33,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:10:33" (1/1) ... [2019-10-13 23:10:33,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605515df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:33, skipping insertion in model container [2019-10-13 23:10:33,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:10:33" (1/1) ... [2019-10-13 23:10:33,067 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:10:33,156 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:10:33,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:10:33,992 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:10:34,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:10:34,290 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:10:34,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:34 WrapperNode [2019-10-13 23:10:34,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:10:34,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:10:34,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:10:34,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:10:34,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:34" (1/1) ... [2019-10-13 23:10:34,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:34" (1/1) ... [2019-10-13 23:10:34,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:34" (1/1) ... [2019-10-13 23:10:34,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:34" (1/1) ... [2019-10-13 23:10:34,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:34" (1/1) ... [2019-10-13 23:10:34,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:34" (1/1) ... [2019-10-13 23:10:34,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:34" (1/1) ... [2019-10-13 23:10:34,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:10:34,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:10:34,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:10:34,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:10:34,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:34" (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 23:10:34,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:10:34,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:10:34,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:10:34,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:10:34,692 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:10:34,694 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:10:34,695 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:10:34,696 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:10:34,696 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:10:34,696 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:10:34,697 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:10:34,699 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:10:34,699 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:10:34,699 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:10:34,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:10:34,700 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:10:34,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:10:34,706 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:10:34,706 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:10:34,707 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:10:34,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:10:34,708 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:10:34,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:10:34,709 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:10:34,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:10:34,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:10:34,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:10:34,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:10:34,711 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:10:34,711 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:10:34,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:10:34,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:10:34,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:10:34,714 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:10:34,716 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:10:34,716 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:10:34,716 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:10:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:10:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:10:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:10:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:10:34,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:10:34,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:10:34,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:10:34,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:10:34,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:10:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:10:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:10:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:10:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:10:34,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:10:34,720 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:10:34,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:10:34,720 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:10:34,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:10:34,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:10:34,721 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:10:34,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:10:34,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:10:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:10:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:10:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:10:34,724 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:10:34,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:10:34,724 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:10:34,724 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:10:34,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:10:34,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:10:34,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:10:34,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:10:34,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:10:34,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:10:34,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:10:34,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:10:34,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:10:34,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:10:34,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:10:34,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:10:34,729 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:10:34,729 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:10:34,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:10:34,731 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:10:34,731 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:10:34,731 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:10:34,731 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:10:34,732 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:10:34,732 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:10:34,733 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:10:34,733 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:10:34,733 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:10:34,733 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:10:34,733 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:10:34,733 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:10:34,733 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:10:34,734 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:10:34,734 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:10:34,734 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:10:34,734 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:10:34,734 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:10:34,734 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-13 23:10:34,735 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:10:34,735 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:10:34,735 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:10:34,735 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:10:34,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:10:34,735 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:10:34,735 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:10:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:10:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:10:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:10:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:10:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:10:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:10:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:10:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:10:34,737 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:10:34,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-13 23:10:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:10:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:10:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:10:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:10:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:10:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:10:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:10:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:10:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:10:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:10:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:10:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:10:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:10:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:10:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:10:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:10:34,745 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:10:34,748 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:10:34,749 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:10:34,749 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:10:34,749 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:10:34,750 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:10:34,750 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:10:34,751 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:10:34,751 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:10:34,751 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:10:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:10:34,760 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:10:34,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:10:34,760 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:10:34,760 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:10:34,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:10:34,761 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:10:34,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:10:34,761 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:10:34,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:10:34,761 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:10:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:10:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:10:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:10:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:10:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:10:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:10:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:10:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:10:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:10:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:10:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:10:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:10:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:10:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:10:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:10:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:10:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:10:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:10:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:10:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:10:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:10:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:10:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:10:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:10:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:10:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:10:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:10:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:10:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:10:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:10:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:10:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:10:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:10:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:10:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:10:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:10:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:10:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:10:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:10:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:10:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:10:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:10:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:10:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:10:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:10:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:10:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:10:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:10:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:10:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:10:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:10:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:10:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:10:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:10:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:10:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:10:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:10:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:10:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:10:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:10:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:10:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:10:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:10:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:10:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:10:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:10:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:10:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:10:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:10:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:10:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:10:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:10:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:10:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:10:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:10:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:10:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:10:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:10:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:10:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:10:34,781 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:10:34,781 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:10:34,781 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:10:34,781 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:10:34,782 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:10:34,782 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:10:34,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-13 23:10:34,782 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:10:34,783 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:10:34,783 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-13 23:10:34,783 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:10:34,784 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:10:34,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:10:34,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:10:34,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:10:39,846 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:10:39,847 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:10:39,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:10:39 BoogieIcfgContainer [2019-10-13 23:10:39,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:10:39,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:10:39,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:10:39,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:10:39,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:10:33" (1/3) ... [2019-10-13 23:10:39,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ab30c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:10:39, skipping insertion in model container [2019-10-13 23:10:39,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:34" (2/3) ... [2019-10-13 23:10:39,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ab30c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:10:39, skipping insertion in model container [2019-10-13 23:10:39,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:10:39" (3/3) ... [2019-10-13 23:10:39,858 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product27.cil.c [2019-10-13 23:10:39,868 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:10:39,879 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:10:39,892 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:10:39,924 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:10:39,924 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:10:39,924 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:10:39,924 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:10:39,924 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:10:39,924 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:10:39,925 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:10:39,925 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:10:40,005 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states. [2019-10-13 23:10:40,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-13 23:10:40,023 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:40,025 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:10:40,028 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:40,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:40,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1316750710, now seen corresponding path program 1 times [2019-10-13 23:10:40,050 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:40,051 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808371984] [2019-10-13 23:10:40,051 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:40,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:40,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:40,718 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:10:40,719 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808371984] [2019-10-13 23:10:40,720 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:40,721 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:10:40,721 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437637877] [2019-10-13 23:10:40,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:10:40,730 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:40,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:10:40,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:10:40,748 INFO L87 Difference]: Start difference. First operand 428 states. Second operand 2 states. [2019-10-13 23:10:40,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:40,836 INFO L93 Difference]: Finished difference Result 631 states and 744 transitions. [2019-10-13 23:10:40,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:10:40,838 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-13 23:10:40,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:40,858 INFO L225 Difference]: With dead ends: 631 [2019-10-13 23:10:40,858 INFO L226 Difference]: Without dead ends: 401 [2019-10-13 23:10:40,865 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 23:10:40,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-10-13 23:10:40,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2019-10-13 23:10:40,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-10-13 23:10:40,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 470 transitions. [2019-10-13 23:10:40,960 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 470 transitions. Word has length 125 [2019-10-13 23:10:40,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:40,963 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 470 transitions. [2019-10-13 23:10:40,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:10:40,963 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 470 transitions. [2019-10-13 23:10:40,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-13 23:10:40,973 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:40,974 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:10:40,974 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:40,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:40,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1915856598, now seen corresponding path program 1 times [2019-10-13 23:10:40,977 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:40,978 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312265141] [2019-10-13 23:10:40,978 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:40,978 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:40,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:41,240 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:10:41,241 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312265141] [2019-10-13 23:10:41,241 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:41,241 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:10:41,241 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906106108] [2019-10-13 23:10:41,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:10:41,244 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:41,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:10:41,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:41,244 INFO L87 Difference]: Start difference. First operand 401 states and 470 transitions. Second operand 3 states. [2019-10-13 23:10:41,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:41,292 INFO L93 Difference]: Finished difference Result 616 states and 713 transitions. [2019-10-13 23:10:41,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:10:41,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-13 23:10:41,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:41,299 INFO L225 Difference]: With dead ends: 616 [2019-10-13 23:10:41,299 INFO L226 Difference]: Without dead ends: 403 [2019-10-13 23:10:41,302 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 23:10:41,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-10-13 23:10:41,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2019-10-13 23:10:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-10-13 23:10:41,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 472 transitions. [2019-10-13 23:10:41,348 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 472 transitions. Word has length 126 [2019-10-13 23:10:41,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:41,349 INFO L462 AbstractCegarLoop]: Abstraction has 403 states and 472 transitions. [2019-10-13 23:10:41,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:10:41,349 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 472 transitions. [2019-10-13 23:10:41,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-13 23:10:41,357 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:41,358 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:10:41,358 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:41,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:41,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1631421489, now seen corresponding path program 1 times [2019-10-13 23:10:41,358 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:41,359 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480325432] [2019-10-13 23:10:41,359 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:41,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:41,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:41,816 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:10:41,817 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480325432] [2019-10-13 23:10:41,817 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:41,817 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:10:41,817 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745676800] [2019-10-13 23:10:41,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:10:41,819 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:41,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:10:41,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:41,820 INFO L87 Difference]: Start difference. First operand 403 states and 472 transitions. Second operand 3 states. [2019-10-13 23:10:41,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:41,890 INFO L93 Difference]: Finished difference Result 792 states and 957 transitions. [2019-10-13 23:10:41,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:10:41,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-13 23:10:41,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:41,900 INFO L225 Difference]: With dead ends: 792 [2019-10-13 23:10:41,901 INFO L226 Difference]: Without dead ends: 447 [2019-10-13 23:10:41,906 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 23:10:41,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-10-13 23:10:41,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2019-10-13 23:10:41,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2019-10-13 23:10:41,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 546 transitions. [2019-10-13 23:10:41,955 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 546 transitions. Word has length 138 [2019-10-13 23:10:41,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:41,959 INFO L462 AbstractCegarLoop]: Abstraction has 446 states and 546 transitions. [2019-10-13 23:10:41,959 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:10:41,959 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 546 transitions. [2019-10-13 23:10:41,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-13 23:10:41,967 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:41,968 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:10:41,968 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:41,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:41,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1482362282, now seen corresponding path program 1 times [2019-10-13 23:10:41,969 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:41,969 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689464780] [2019-10-13 23:10:41,969 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:41,971 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:41,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:42,561 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:10:42,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689464780] [2019-10-13 23:10:42,562 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:42,563 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-13 23:10:42,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367667370] [2019-10-13 23:10:42,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-13 23:10:42,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:42,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-13 23:10:42,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2019-10-13 23:10:42,565 INFO L87 Difference]: Start difference. First operand 446 states and 546 transitions. Second operand 21 states. [2019-10-13 23:10:51,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:51,984 INFO L93 Difference]: Finished difference Result 898 states and 1073 transitions. [2019-10-13 23:10:51,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-13 23:10:51,985 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 139 [2019-10-13 23:10:51,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:51,997 INFO L225 Difference]: With dead ends: 898 [2019-10-13 23:10:51,998 INFO L226 Difference]: Without dead ends: 691 [2019-10-13 23:10:52,000 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2019-10-13 23:10:52,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2019-10-13 23:10:52,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 682. [2019-10-13 23:10:52,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 682 states. [2019-10-13 23:10:52,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 824 transitions. [2019-10-13 23:10:52,056 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 824 transitions. Word has length 139 [2019-10-13 23:10:52,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:52,059 INFO L462 AbstractCegarLoop]: Abstraction has 682 states and 824 transitions. [2019-10-13 23:10:52,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-13 23:10:52,059 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 824 transitions. [2019-10-13 23:10:52,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-13 23:10:52,065 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:52,065 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:10:52,065 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:52,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:52,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1753159880, now seen corresponding path program 1 times [2019-10-13 23:10:52,066 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:52,067 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282967991] [2019-10-13 23:10:52,067 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:52,067 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:52,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:52,634 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:10:52,634 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282967991] [2019-10-13 23:10:52,635 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:52,635 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-13 23:10:52,635 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756601303] [2019-10-13 23:10:52,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-13 23:10:52,636 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:52,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-13 23:10:52,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-10-13 23:10:52,637 INFO L87 Difference]: Start difference. First operand 682 states and 824 transitions. Second operand 23 states. [2019-10-13 23:10:54,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:54,642 INFO L93 Difference]: Finished difference Result 760 states and 910 transitions. [2019-10-13 23:10:54,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-13 23:10:54,643 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 145 [2019-10-13 23:10:54,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:54,649 INFO L225 Difference]: With dead ends: 760 [2019-10-13 23:10:54,649 INFO L226 Difference]: Without dead ends: 753 [2019-10-13 23:10:54,651 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 23:10:54,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2019-10-13 23:10:54,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 746. [2019-10-13 23:10:54,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2019-10-13 23:10:54,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 895 transitions. [2019-10-13 23:10:54,709 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 895 transitions. Word has length 145 [2019-10-13 23:10:54,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:54,710 INFO L462 AbstractCegarLoop]: Abstraction has 746 states and 895 transitions. [2019-10-13 23:10:54,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-13 23:10:54,711 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 895 transitions. [2019-10-13 23:10:54,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-13 23:10:54,716 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:54,716 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:54,716 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:54,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:54,717 INFO L82 PathProgramCache]: Analyzing trace with hash 483975670, now seen corresponding path program 1 times [2019-10-13 23:10:54,717 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:54,717 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802689634] [2019-10-13 23:10:54,718 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:54,718 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:54,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:55,019 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 23:10:55,020 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802689634] [2019-10-13 23:10:55,021 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:55,021 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 23:10:55,021 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711639562] [2019-10-13 23:10:55,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:10:55,023 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:55,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:10:55,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:10:55,024 INFO L87 Difference]: Start difference. First operand 746 states and 895 transitions. Second operand 8 states. [2019-10-13 23:10:55,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:55,112 INFO L93 Difference]: Finished difference Result 1213 states and 1439 transitions. [2019-10-13 23:10:55,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:10:55,112 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 243 [2019-10-13 23:10:55,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:55,123 INFO L225 Difference]: With dead ends: 1213 [2019-10-13 23:10:55,123 INFO L226 Difference]: Without dead ends: 746 [2019-10-13 23:10:55,126 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:10:55,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2019-10-13 23:10:55,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2019-10-13 23:10:55,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2019-10-13 23:10:55,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 893 transitions. [2019-10-13 23:10:55,188 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 893 transitions. Word has length 243 [2019-10-13 23:10:55,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:55,190 INFO L462 AbstractCegarLoop]: Abstraction has 746 states and 893 transitions. [2019-10-13 23:10:55,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:10:55,191 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 893 transitions. [2019-10-13 23:10:55,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-13 23:10:55,200 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:55,201 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:55,201 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:55,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:55,207 INFO L82 PathProgramCache]: Analyzing trace with hash 131809285, now seen corresponding path program 1 times [2019-10-13 23:10:55,208 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:55,208 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038194757] [2019-10-13 23:10:55,208 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:55,209 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:55,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:55,686 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 23:10:55,686 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038194757] [2019-10-13 23:10:55,686 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:55,687 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 23:10:55,687 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843710827] [2019-10-13 23:10:55,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:10:55,688 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:55,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:10:55,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:10:55,689 INFO L87 Difference]: Start difference. First operand 746 states and 893 transitions. Second operand 11 states. [2019-10-13 23:10:59,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:59,056 INFO L93 Difference]: Finished difference Result 1492 states and 1744 transitions. [2019-10-13 23:10:59,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:10:59,056 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 248 [2019-10-13 23:10:59,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:59,063 INFO L225 Difference]: With dead ends: 1492 [2019-10-13 23:10:59,063 INFO L226 Difference]: Without dead ends: 1097 [2019-10-13 23:10:59,066 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:10:59,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2019-10-13 23:10:59,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1069. [2019-10-13 23:10:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1069 states. [2019-10-13 23:10:59,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1259 transitions. [2019-10-13 23:10:59,160 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1259 transitions. Word has length 248 [2019-10-13 23:10:59,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:59,161 INFO L462 AbstractCegarLoop]: Abstraction has 1069 states and 1259 transitions. [2019-10-13 23:10:59,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:10:59,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1259 transitions. [2019-10-13 23:10:59,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2019-10-13 23:10:59,171 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:59,171 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:59,172 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:59,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:59,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1267936086, now seen corresponding path program 1 times [2019-10-13 23:10:59,173 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:59,173 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607781444] [2019-10-13 23:10:59,173 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:59,174 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:59,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:00,880 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 23:11:00,880 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607781444] [2019-10-13 23:11:00,881 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290953512] [2019-10-13 23:11:00,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 23:11:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:01,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 3324 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:11:01,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:11:01,863 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2019-10-13 23:11:01,863 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:11:02,769 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 23:11:02,770 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [714670071] [2019-10-13 23:11:02,812 INFO L162 IcfgInterpreter]: Started Sifa with 210 locations of interest [2019-10-13 23:11:02,812 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:11:02,823 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:11:02,831 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:11:02,832 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs