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_spec27_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:08:26,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:08:26,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:08:26,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:08:26,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:08:26,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:08:26,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:08:26,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:08:26,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:08:26,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:08:26,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:08:26,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:08:26,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:08:26,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:08:26,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:08:26,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:08:26,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:08:26,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:08:26,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:08:26,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:08:26,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:08:26,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:08:26,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:08:26,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:08:26,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:08:26,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:08:26,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:08:26,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:08:26,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:08:26,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:08:26,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:08:26,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:08:26,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:08:26,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:08:26,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:08:26,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:08:26,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:08:26,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:08:26,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:08:26,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:08:26,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:08:26,725 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 23:08:26,739 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:08:26,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:08:26,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:08:26,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:08:26,741 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:08:26,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:08:26,741 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:08:26,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:08:26,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:08:26,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:08:26,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:08:26,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:08:26,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:08:26,742 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:08:26,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:08:26,743 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:08:26,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:08:26,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:08:26,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:08:26,744 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:08:26,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:08:26,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:08:26,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:08:26,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:08:26,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:08:26,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:08:26,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:08:26,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:08:26,745 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 23:08:27,041 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:08:27,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:08:27,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:08:27,059 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:08:27,060 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:08:27,060 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product18.cil.c [2019-10-13 23:08:27,124 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a57befb74/c081a7ce80874cae9cd461b26f456862/FLAGedd1eb590 [2019-10-13 23:08:27,756 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:08:27,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product18.cil.c [2019-10-13 23:08:27,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a57befb74/c081a7ce80874cae9cd461b26f456862/FLAGedd1eb590 [2019-10-13 23:08:27,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a57befb74/c081a7ce80874cae9cd461b26f456862 [2019-10-13 23:08:27,993 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:08:27,995 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:08:27,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:08:27,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:08:27,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:08:28,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:08:27" (1/1) ... [2019-10-13 23:08:28,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e4ad246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:28, skipping insertion in model container [2019-10-13 23:08:28,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:08:27" (1/1) ... [2019-10-13 23:08:28,010 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:08:28,092 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:08:28,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:08:28,944 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:08:29,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:08:29,184 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:08:29,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:29 WrapperNode [2019-10-13 23:08:29,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:08:29,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:08:29,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:08:29,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:08:29,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:29" (1/1) ... [2019-10-13 23:08:29,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:29" (1/1) ... [2019-10-13 23:08:29,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:29" (1/1) ... [2019-10-13 23:08:29,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:29" (1/1) ... [2019-10-13 23:08:29,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:29" (1/1) ... [2019-10-13 23:08:29,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:29" (1/1) ... [2019-10-13 23:08:29,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:29" (1/1) ... [2019-10-13 23:08:29,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:08:29,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:08:29,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:08:29,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:08:29,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:29" (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 23:08:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:08:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:08:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:08:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:08:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:08:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:08:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:08:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:08:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:08:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:08:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:08:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:08:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:08:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:08:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:08:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:08:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:08:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:08:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:08:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:08:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:08:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:08:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:08:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:08:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:08:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:08:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:08:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:08:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:08:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:08:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:08:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:08:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:08:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:08:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:08:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:08:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:08:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:08:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:08:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:08:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:08:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:08:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:08:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:08:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:08:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:08:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:08:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:08:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:08:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:08:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:08:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:08:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:08:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:08:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:08:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:08:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:08:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:08:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 23:08:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:08:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:08:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:08:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:08:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:08:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:08:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:08:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:08:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:08:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:08:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:08:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:08:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:08:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:08:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:08:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:08:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:08:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:08:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:08:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:08:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:08:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:08:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:08:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:08:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:08:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:08:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:08:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:08:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:08:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:08:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:08:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:08:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-13 23:08:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:08:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:08:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:08:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:08:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:08:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:08:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:08:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:08:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:08:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:08:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:08:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:08:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:08:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:08:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:08:29,454 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:08:29,454 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:08:29,454 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:08:29,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:08:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:08:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:08:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:08:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:08:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:08:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:08:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:08:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:08:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:08:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:08:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:08:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:08:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:08:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:08:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:08:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:08:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:08:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:08:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:08:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:08:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:08:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:08:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:08:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:08:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:08:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:08:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:08:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:08:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:08:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:08:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:08:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:08:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:08:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:08:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:08:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:08:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:08:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:08:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:08:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:08:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:08:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:08:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:08:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:08:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:08:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:08:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:08:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:08:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:08:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:08:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:08:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:08:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:08:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:08:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:08:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:08:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:08:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:08:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:08:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:08:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:08:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:08:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:08:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:08:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:08:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:08:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:08:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:08:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:08:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:08:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:08:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:08:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:08:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:08:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:08:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:08:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:08:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:08:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:08:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:08:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:08:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:08:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:08:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:08:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:08:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:08:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:08:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:08:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:08:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:08:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:08:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:08:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 23:08:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:08:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:08:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:08:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:08:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:08:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:08:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:08:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:08:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:08:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:08:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:08:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:08:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:08:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:08:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:08:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:08:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:08:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:08:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:08:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:08:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:08:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:08:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:08:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:08:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:08:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:08:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-13 23:08:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:08:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:08:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:08:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:08:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:08:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:08:33,934 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:08:33,934 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:08:33,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:08:33 BoogieIcfgContainer [2019-10-13 23:08:33,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:08:33,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:08:33,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:08:33,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:08:33,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:08:27" (1/3) ... [2019-10-13 23:08:33,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e33a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:08:33, skipping insertion in model container [2019-10-13 23:08:33,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:29" (2/3) ... [2019-10-13 23:08:33,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e33a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:08:33, skipping insertion in model container [2019-10-13 23:08:33,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:08:33" (3/3) ... [2019-10-13 23:08:33,944 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product18.cil.c [2019-10-13 23:08:33,955 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:08:33,964 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:08:33,976 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:08:34,006 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:08:34,006 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:08:34,006 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:08:34,006 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:08:34,006 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:08:34,007 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:08:34,007 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:08:34,007 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:08:34,035 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states. [2019-10-13 23:08:34,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-13 23:08:34,053 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:34,054 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:08:34,056 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:34,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:34,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1476234630, now seen corresponding path program 1 times [2019-10-13 23:08:34,073 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:34,073 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062327521] [2019-10-13 23:08:34,073 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:34,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:34,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:34,687 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062327521] [2019-10-13 23:08:34,688 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:34,688 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:08:34,689 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167203723] [2019-10-13 23:08:34,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:08:34,694 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:34,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:08:34,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:08:34,712 INFO L87 Difference]: Start difference. First operand 352 states. Second operand 2 states. [2019-10-13 23:08:34,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:34,771 INFO L93 Difference]: Finished difference Result 484 states and 567 transitions. [2019-10-13 23:08:34,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:08:34,772 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-10-13 23:08:34,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:34,791 INFO L225 Difference]: With dead ends: 484 [2019-10-13 23:08:34,791 INFO L226 Difference]: Without dead ends: 317 [2019-10-13 23:08:34,798 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 23:08:34,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2019-10-13 23:08:34,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2019-10-13 23:08:34,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2019-10-13 23:08:34,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 370 transitions. [2019-10-13 23:08:34,892 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 370 transitions. Word has length 143 [2019-10-13 23:08:34,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:34,894 INFO L462 AbstractCegarLoop]: Abstraction has 317 states and 370 transitions. [2019-10-13 23:08:34,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:08:34,894 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 370 transitions. [2019-10-13 23:08:34,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-13 23:08:34,900 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:34,901 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:08:34,901 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:34,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:34,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1480978745, now seen corresponding path program 1 times [2019-10-13 23:08:34,902 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:34,902 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954753548] [2019-10-13 23:08:34,902 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:34,902 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:34,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:35,184 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:35,184 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954753548] [2019-10-13 23:08:35,185 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:35,185 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:35,185 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956170874] [2019-10-13 23:08:35,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:35,192 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:35,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:35,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:35,193 INFO L87 Difference]: Start difference. First operand 317 states and 370 transitions. Second operand 3 states. [2019-10-13 23:08:35,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:35,266 INFO L93 Difference]: Finished difference Result 469 states and 535 transitions. [2019-10-13 23:08:35,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:35,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-13 23:08:35,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:35,277 INFO L225 Difference]: With dead ends: 469 [2019-10-13 23:08:35,277 INFO L226 Difference]: Without dead ends: 319 [2019-10-13 23:08:35,285 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 23:08:35,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2019-10-13 23:08:35,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2019-10-13 23:08:35,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-10-13 23:08:35,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 372 transitions. [2019-10-13 23:08:35,346 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 372 transitions. Word has length 144 [2019-10-13 23:08:35,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:35,346 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 372 transitions. [2019-10-13 23:08:35,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:35,346 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 372 transitions. [2019-10-13 23:08:35,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-13 23:08:35,354 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:35,354 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, 1, 1, 1, 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 23:08:35,355 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:35,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:35,355 INFO L82 PathProgramCache]: Analyzing trace with hash -573803076, now seen corresponding path program 1 times [2019-10-13 23:08:35,356 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:35,356 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903080504] [2019-10-13 23:08:35,356 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:35,356 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:35,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:35,681 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:35,681 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903080504] [2019-10-13 23:08:35,681 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:35,682 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:35,682 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517305541] [2019-10-13 23:08:35,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:35,684 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:35,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:35,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:35,685 INFO L87 Difference]: Start difference. First operand 319 states and 372 transitions. Second operand 3 states. [2019-10-13 23:08:35,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:35,733 INFO L93 Difference]: Finished difference Result 620 states and 751 transitions. [2019-10-13 23:08:35,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:35,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-13 23:08:35,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:35,737 INFO L225 Difference]: With dead ends: 620 [2019-10-13 23:08:35,737 INFO L226 Difference]: Without dead ends: 359 [2019-10-13 23:08:35,739 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 23:08:35,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2019-10-13 23:08:35,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 358. [2019-10-13 23:08:35,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2019-10-13 23:08:35,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 440 transitions. [2019-10-13 23:08:35,767 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 440 transitions. Word has length 153 [2019-10-13 23:08:35,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:35,768 INFO L462 AbstractCegarLoop]: Abstraction has 358 states and 440 transitions. [2019-10-13 23:08:35,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:35,768 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 440 transitions. [2019-10-13 23:08:35,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 23:08:35,772 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:35,772 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, 1, 1, 1, 1, 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 23:08:35,772 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:35,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:35,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1399251957, now seen corresponding path program 1 times [2019-10-13 23:08:35,774 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:35,775 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788236550] [2019-10-13 23:08:35,775 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:35,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:35,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:35,920 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:35,920 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788236550] [2019-10-13 23:08:35,920 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:35,921 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:35,921 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296912062] [2019-10-13 23:08:35,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:35,922 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:35,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:35,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:35,925 INFO L87 Difference]: Start difference. First operand 358 states and 440 transitions. Second operand 3 states. [2019-10-13 23:08:35,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:35,960 INFO L93 Difference]: Finished difference Result 734 states and 950 transitions. [2019-10-13 23:08:35,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:35,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-13 23:08:35,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:35,965 INFO L225 Difference]: With dead ends: 734 [2019-10-13 23:08:35,965 INFO L226 Difference]: Without dead ends: 434 [2019-10-13 23:08:35,966 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 23:08:35,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-10-13 23:08:35,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 433. [2019-10-13 23:08:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-10-13 23:08:35,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 570 transitions. [2019-10-13 23:08:35,989 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 570 transitions. Word has length 154 [2019-10-13 23:08:35,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:35,990 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 570 transitions. [2019-10-13 23:08:35,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:35,990 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 570 transitions. [2019-10-13 23:08:35,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-13 23:08:35,993 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:35,994 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, 1, 1, 1, 1, 1, 1, 1, 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 23:08:35,994 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:35,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:35,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1518389017, now seen corresponding path program 1 times [2019-10-13 23:08:35,995 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:35,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186740873] [2019-10-13 23:08:35,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:35,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:35,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:36,280 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 23:08:36,281 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186740873] [2019-10-13 23:08:36,281 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:36,281 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 23:08:36,282 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451129304] [2019-10-13 23:08:36,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:08:36,283 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:36,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:08:36,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:08:36,285 INFO L87 Difference]: Start difference. First operand 433 states and 570 transitions. Second operand 8 states. [2019-10-13 23:08:36,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:36,371 INFO L93 Difference]: Finished difference Result 571 states and 722 transitions. [2019-10-13 23:08:36,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:08:36,371 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 157 [2019-10-13 23:08:36,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:36,375 INFO L225 Difference]: With dead ends: 571 [2019-10-13 23:08:36,375 INFO L226 Difference]: Without dead ends: 433 [2019-10-13 23:08:36,376 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 23:08:36,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-10-13 23:08:36,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2019-10-13 23:08:36,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-10-13 23:08:36,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 569 transitions. [2019-10-13 23:08:36,396 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 569 transitions. Word has length 157 [2019-10-13 23:08:36,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:36,397 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 569 transitions. [2019-10-13 23:08:36,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:08:36,397 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 569 transitions. [2019-10-13 23:08:36,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 23:08:36,400 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:36,401 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:08:36,401 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:36,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:36,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1346468815, now seen corresponding path program 1 times [2019-10-13 23:08:36,402 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:36,402 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945381044] [2019-10-13 23:08:36,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:36,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:36,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:37,021 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-13 23:08:37,022 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945381044] [2019-10-13 23:08:37,022 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149360629] [2019-10-13 23:08:37,022 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 23:08:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:37,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 2527 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:08:37,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:08:37,788 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:37,788 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:08:38,064 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:38,064 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1318292145] [2019-10-13 23:08:38,100 INFO L162 IcfgInterpreter]: Started Sifa with 151 locations of interest [2019-10-13 23:08:38,101 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:08:38,113 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:08:38,123 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:08:38,124 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs