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_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:13:09,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:13:09,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:13:09,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:13:09,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:13:09,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:13:09,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:13:09,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:13:09,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:13:09,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:13:09,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:13:09,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:13:09,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:13:09,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:13:09,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:13:09,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:13:09,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:13:09,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:13:09,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:13:09,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:13:09,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:13:09,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:13:09,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:13:09,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:13:09,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:13:09,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:13:09,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:13:09,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:13:09,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:13:09,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:13:09,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:13:09,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:13:09,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:13:09,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:13:09,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:13:09,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:13:09,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:13:09,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:13:09,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:13:09,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:13:09,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:13:09,944 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:13:09,958 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:13:09,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:13:09,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:13:09,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:13:09,960 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:13:09,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:13:09,960 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:13:09,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:13:09,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:13:09,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:13:09,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:13:09,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:13:09,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:13:09,962 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:13:09,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:13:09,962 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:13:09,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:13:09,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:13:09,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:13:09,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:13:09,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:13:09,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:13:09,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:13:09,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:13:09,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:13:09,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:13:09,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:13:09,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:13:09,965 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 [2019-10-15 03:13:10,331 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:13:10,352 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:13:10,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:13:10,358 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:13:10,358 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:13:10,359 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product27.cil.c [2019-10-15 03:13:10,434 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa1660d81/3630aaf5632749c2bf23f50ac4df61b0/FLAGe32610748 [2019-10-15 03:13:11,094 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:13:11,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product27.cil.c [2019-10-15 03:13:11,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa1660d81/3630aaf5632749c2bf23f50ac4df61b0/FLAGe32610748 [2019-10-15 03:13:11,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa1660d81/3630aaf5632749c2bf23f50ac4df61b0 [2019-10-15 03:13:11,282 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:13:11,286 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:13:11,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:13:11,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:13:11,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:13:11,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243eae36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:11, skipping insertion in model container [2019-10-15 03:13:11,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:13:11" (1/1) ... [2019-10-15 03:13:11,303 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:13:11,390 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:13:12,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:13:12,153 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:13:12,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:13:12,491 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:13:12,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:12 WrapperNode [2019-10-15 03:13:12,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:13:12,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:13:12,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:13:12,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:13:12,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:12" (1/1) ... [2019-10-15 03:13:12,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:12" (1/1) ... [2019-10-15 03:13:12,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:12" (1/1) ... [2019-10-15 03:13:12,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:12" (1/1) ... [2019-10-15 03:13:12,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:12" (1/1) ... [2019-10-15 03:13:12,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:12" (1/1) ... [2019-10-15 03:13:12,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:12" (1/1) ... [2019-10-15 03:13:12,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:13:12,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:13:12,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:13:12,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:13:12,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:13:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:13:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:13:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:13:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 03:13:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:13:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:13:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:13:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:13:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:13:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:13:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:13:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:13:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:13:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:13:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:13:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:13:12,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:13:12,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:13:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:13:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:13:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:13:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:13:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:13:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:13:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:13:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:13:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:13:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:13:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:13:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:13:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:13:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:13:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:13:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:13:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:13:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:13:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:13:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:13:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:13:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:13:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:13:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:13:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:13:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:13:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:13:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:13:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:13:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:13:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:13:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:13:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:13:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:13:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:13:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:13:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:13:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:13:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:13:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:13:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:13:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:13:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:13:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:13:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:13:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:13:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:13:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:13:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:13:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:13:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:13:12,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:13:12,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:13:12,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:13:12,773 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:13:12,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:13:12,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:13:12,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:13:12,775 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:13:12,775 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:13:12,775 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:13:12,776 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:13:12,776 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:13:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:13:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:13:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:13:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:13:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:13:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:13:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:13:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:13:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:13:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:13:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:13:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:13:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-15 03:13:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:13:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:13:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:13:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 03:13:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:13:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:13:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-15 03:13:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:13:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:13:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:13:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:13:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:13:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:13:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:13:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:13:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:13:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:13:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:13:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:13:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:13:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:13:12,783 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:13:12,783 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:13:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:13:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:13:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:13:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:13:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:13:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:13:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:13:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:13:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:13:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:13:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:13:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:13:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:13:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:13:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:13:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 03:13:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:13:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:13:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:13:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:13:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:13:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:13:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:13:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:13:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:13:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:13:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:13:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:13:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:13:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:13:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:13:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:13:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:13:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:13:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:13:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:13:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:13:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:13:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:13:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:13:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:13:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:13:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:13:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:13:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:13:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:13:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:13:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:13:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:13:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:13:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:13:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:13:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:13:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:13:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:13:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:13:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:13:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:13:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:13:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:13:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:13:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:13:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:13:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:13:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:13:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:13:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:13:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:13:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:13:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:13:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:13:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:13:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:13:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:13:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:13:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:13:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:13:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:13:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:13:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:13:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:13:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:13:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:13:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:13:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:13:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:13:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:13:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:13:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:13:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:13:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:13:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:13:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:13:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:13:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:13:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:13:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:13:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:13:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:13:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:13:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:13:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:13:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:13:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:13:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:13:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:13:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:13:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:13:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:13:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:13:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:13:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-15 03:13:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:13:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:13:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:13:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:13:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:13:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:13:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:13:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:13:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:13:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:13:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:13:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:13:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:13:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 03:13:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-15 03:13:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:13:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:13:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:13:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:13:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:13:17,606 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:13:17,607 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:13:17,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:13:17 BoogieIcfgContainer [2019-10-15 03:13:17,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:13:17,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:13:17,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:13:17,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:13:17,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:13:11" (1/3) ... [2019-10-15 03:13:17,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a516ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:13:17, skipping insertion in model container [2019-10-15 03:13:17,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:13:12" (2/3) ... [2019-10-15 03:13:17,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a516ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:13:17, skipping insertion in model container [2019-10-15 03:13:17,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:13:17" (3/3) ... [2019-10-15 03:13:17,618 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product27.cil.c [2019-10-15 03:13:17,628 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:13:17,637 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:13:17,648 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:13:17,678 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:13:17,678 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:13:17,678 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:13:17,678 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:13:17,678 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:13:17,678 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:13:17,679 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:13:17,679 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:13:17,710 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states. [2019-10-15 03:13:17,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-15 03:13:17,730 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:17,732 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:17,734 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:17,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:17,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1584816031, now seen corresponding path program 1 times [2019-10-15 03:13:17,752 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:17,752 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946875925] [2019-10-15 03:13:17,753 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:17,753 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:17,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:18,486 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:13:18,487 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946875925] [2019-10-15 03:13:18,487 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:18,488 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:13:18,488 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810195641] [2019-10-15 03:13:18,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:13:18,494 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:18,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:13:18,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:13:18,511 INFO L87 Difference]: Start difference. First operand 430 states. Second operand 2 states. [2019-10-15 03:13:18,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:18,583 INFO L93 Difference]: Finished difference Result 635 states and 755 transitions. [2019-10-15 03:13:18,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:13:18,585 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-10-15 03:13:18,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:18,617 INFO L225 Difference]: With dead ends: 635 [2019-10-15 03:13:18,617 INFO L226 Difference]: Without dead ends: 403 [2019-10-15 03:13:18,626 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:13:18,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-10-15 03:13:18,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2019-10-15 03:13:18,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-10-15 03:13:18,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 473 transitions. [2019-10-15 03:13:18,718 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 473 transitions. Word has length 152 [2019-10-15 03:13:18,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:18,720 INFO L462 AbstractCegarLoop]: Abstraction has 403 states and 473 transitions. [2019-10-15 03:13:18,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:13:18,721 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 473 transitions. [2019-10-15 03:13:18,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-15 03:13:18,727 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:18,727 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:18,727 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:18,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:18,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1654117739, now seen corresponding path program 1 times [2019-10-15 03:13:18,728 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:18,728 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571852415] [2019-10-15 03:13:18,729 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:18,729 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:18,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:18,953 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:13:18,953 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571852415] [2019-10-15 03:13:18,954 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:18,954 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:13:18,954 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743194926] [2019-10-15 03:13:18,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:13:18,958 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:18,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:13:18,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:18,959 INFO L87 Difference]: Start difference. First operand 403 states and 473 transitions. Second operand 3 states. [2019-10-15 03:13:19,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:19,049 INFO L93 Difference]: Finished difference Result 620 states and 719 transitions. [2019-10-15 03:13:19,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:13:19,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-15 03:13:19,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:19,061 INFO L225 Difference]: With dead ends: 620 [2019-10-15 03:13:19,062 INFO L226 Difference]: Without dead ends: 405 [2019-10-15 03:13:19,067 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:19,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2019-10-15 03:13:19,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2019-10-15 03:13:19,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-15 03:13:19,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 475 transitions. [2019-10-15 03:13:19,129 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 475 transitions. Word has length 153 [2019-10-15 03:13:19,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:19,130 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 475 transitions. [2019-10-15 03:13:19,130 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:13:19,130 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 475 transitions. [2019-10-15 03:13:19,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 03:13:19,134 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:19,135 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, 1, 1, 1] [2019-10-15 03:13:19,135 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:19,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:19,135 INFO L82 PathProgramCache]: Analyzing trace with hash 251537091, now seen corresponding path program 1 times [2019-10-15 03:13:19,135 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:19,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508749964] [2019-10-15 03:13:19,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:19,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:19,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:19,387 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:13:19,387 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508749964] [2019-10-15 03:13:19,388 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:19,388 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:13:19,388 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421666821] [2019-10-15 03:13:19,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:13:19,389 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:19,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:13:19,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:19,390 INFO L87 Difference]: Start difference. First operand 405 states and 475 transitions. Second operand 3 states. [2019-10-15 03:13:19,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:19,431 INFO L93 Difference]: Finished difference Result 796 states and 963 transitions. [2019-10-15 03:13:19,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:13:19,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-15 03:13:19,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:19,436 INFO L225 Difference]: With dead ends: 796 [2019-10-15 03:13:19,436 INFO L226 Difference]: Without dead ends: 449 [2019-10-15 03:13:19,438 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:13:19,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2019-10-15 03:13:19,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 448. [2019-10-15 03:13:19,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2019-10-15 03:13:19,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 549 transitions. [2019-10-15 03:13:19,463 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 549 transitions. Word has length 165 [2019-10-15 03:13:19,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:19,463 INFO L462 AbstractCegarLoop]: Abstraction has 448 states and 549 transitions. [2019-10-15 03:13:19,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:13:19,464 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 549 transitions. [2019-10-15 03:13:19,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-15 03:13:19,467 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:19,467 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, 1, 1, 1, 1] [2019-10-15 03:13:19,468 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:19,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:19,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1749715759, now seen corresponding path program 1 times [2019-10-15 03:13:19,468 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:19,469 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438033521] [2019-10-15 03:13:19,469 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:19,469 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:19,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:19,710 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:13:19,711 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438033521] [2019-10-15 03:13:19,711 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:19,711 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 03:13:19,711 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894888376] [2019-10-15 03:13:19,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:13:19,712 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:19,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:13:19,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:13:19,713 INFO L87 Difference]: Start difference. First operand 448 states and 549 transitions. Second operand 8 states. [2019-10-15 03:13:19,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:19,812 INFO L93 Difference]: Finished difference Result 651 states and 785 transitions. [2019-10-15 03:13:19,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:13:19,813 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2019-10-15 03:13:19,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:19,823 INFO L225 Difference]: With dead ends: 651 [2019-10-15 03:13:19,823 INFO L226 Difference]: Without dead ends: 448 [2019-10-15 03:13:19,825 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 [2019-10-15 03:13:19,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2019-10-15 03:13:19,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2019-10-15 03:13:19,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2019-10-15 03:13:19,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 548 transitions. [2019-10-15 03:13:19,866 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 548 transitions. Word has length 166 [2019-10-15 03:13:19,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:19,867 INFO L462 AbstractCegarLoop]: Abstraction has 448 states and 548 transitions. [2019-10-15 03:13:19,867 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:13:19,867 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 548 transitions. [2019-10-15 03:13:19,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-15 03:13:19,870 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:19,870 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:19,871 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:19,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:19,871 INFO L82 PathProgramCache]: Analyzing trace with hash -578621378, now seen corresponding path program 1 times [2019-10-15 03:13:19,871 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:19,872 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561936604] [2019-10-15 03:13:19,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:19,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:19,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:21,013 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:13:21,013 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561936604] [2019-10-15 03:13:21,014 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:21,014 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-10-15 03:13:21,014 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633973322] [2019-10-15 03:13:21,015 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-15 03:13:21,016 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:21,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-15 03:13:21,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=849, Unknown=0, NotChecked=0, Total=930 [2019-10-15 03:13:21,018 INFO L87 Difference]: Start difference. First operand 448 states and 548 transitions. Second operand 31 states. [2019-10-15 03:13:34,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:34,278 INFO L93 Difference]: Finished difference Result 947 states and 1152 transitions. [2019-10-15 03:13:34,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-15 03:13:34,279 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 171 [2019-10-15 03:13:34,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:34,284 INFO L225 Difference]: With dead ends: 947 [2019-10-15 03:13:34,285 INFO L226 Difference]: Without dead ends: 736 [2019-10-15 03:13:34,287 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=295, Invalid=3487, Unknown=0, NotChecked=0, Total=3782 [2019-10-15 03:13:34,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2019-10-15 03:13:34,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 727. [2019-10-15 03:13:34,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2019-10-15 03:13:34,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 887 transitions. [2019-10-15 03:13:34,330 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 887 transitions. Word has length 171 [2019-10-15 03:13:34,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:34,331 INFO L462 AbstractCegarLoop]: Abstraction has 727 states and 887 transitions. [2019-10-15 03:13:34,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-15 03:13:34,332 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 887 transitions. [2019-10-15 03:13:34,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 03:13:34,335 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:34,335 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:13:34,335 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:34,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:34,336 INFO L82 PathProgramCache]: Analyzing trace with hash 529093007, now seen corresponding path program 1 times [2019-10-15 03:13:34,336 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:34,336 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35033756] [2019-10-15 03:13:34,336 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:34,337 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:34,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:34,867 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:13:34,868 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35033756] [2019-10-15 03:13:34,869 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:13:34,870 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-15 03:13:34,870 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252478693] [2019-10-15 03:13:34,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-15 03:13:34,871 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:13:34,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-15 03:13:34,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2019-10-15 03:13:34,872 INFO L87 Difference]: Start difference. First operand 727 states and 887 transitions. Second operand 23 states. [2019-10-15 03:13:46,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:13:46,224 INFO L93 Difference]: Finished difference Result 1627 states and 1945 transitions. [2019-10-15 03:13:46,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-15 03:13:46,225 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 192 [2019-10-15 03:13:46,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:13:46,235 INFO L225 Difference]: With dead ends: 1627 [2019-10-15 03:13:46,235 INFO L226 Difference]: Without dead ends: 1153 [2019-10-15 03:13:46,239 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=233, Invalid=2023, Unknown=0, NotChecked=0, Total=2256 [2019-10-15 03:13:46,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2019-10-15 03:13:46,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1138. [2019-10-15 03:13:46,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1138 states. [2019-10-15 03:13:46,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1366 transitions. [2019-10-15 03:13:46,315 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1366 transitions. Word has length 192 [2019-10-15 03:13:46,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:13:46,316 INFO L462 AbstractCegarLoop]: Abstraction has 1138 states and 1366 transitions. [2019-10-15 03:13:46,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-15 03:13:46,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1366 transitions. [2019-10-15 03:13:46,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 03:13:46,321 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:13:46,321 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:13:46,321 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:13:46,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:13:46,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1084575375, now seen corresponding path program 1 times [2019-10-15 03:13:46,323 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:13:46,323 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183860867] [2019-10-15 03:13:46,324 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:46,324 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:13:46,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:13:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:47,452 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 03:13:47,453 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183860867] [2019-10-15 03:13:47,453 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835861010] [2019-10-15 03:13:47,453 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 [2019-10-15 03:13:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:13:48,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 2970 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:13:48,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:13:48,272 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:13:48,272 INFO L321 TraceCheckSpWp]: Computing backward predicates...