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_spec9_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:18:11,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:18:11,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:18:11,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:18:11,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:18:11,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:18:11,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:18:11,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:18:11,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:18:11,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:18:11,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:18:11,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:18:11,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:18:11,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:18:11,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:18:11,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:18:11,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:18:11,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:18:11,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:18:11,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:18:11,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:18:11,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:18:11,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:18:11,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:18:11,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:18:11,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:18:11,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:18:11,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:18:11,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:18:11,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:18:11,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:18:11,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:18:11,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:18:11,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:18:11,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:18:11,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:18:11,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:18:11,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:18:11,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:18:11,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:18:11,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:18:11,152 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 03:18:11,186 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:18:11,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:18:11,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:18:11,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:18:11,189 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:18:11,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:18:11,189 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:18:11,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:18:11,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:18:11,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:18:11,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:18:11,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:18:11,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:18:11,194 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:18:11,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:18:11,195 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:18:11,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:18:11,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:18:11,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:18:11,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:18:11,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:18:11,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:18:11,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:18:11,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:18:11,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:18:11,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:18:11,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:18:11,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:18:11,197 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 03:18:11,530 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:18:11,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:18:11,559 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:18:11,560 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:18:11,561 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:18:11,562 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product31.cil.c [2019-10-15 03:18:11,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/675b37437/f01e30a4f4d844c4a4c95f64eb0bba09/FLAG0594279d1 [2019-10-15 03:18:12,334 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:18:12,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product31.cil.c [2019-10-15 03:18:12,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/675b37437/f01e30a4f4d844c4a4c95f64eb0bba09/FLAG0594279d1 [2019-10-15 03:18:12,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/675b37437/f01e30a4f4d844c4a4c95f64eb0bba09 [2019-10-15 03:18:12,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:18:12,488 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:18:12,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:18:12,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:18:12,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:18:12,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:18:12" (1/1) ... [2019-10-15 03:18:12,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e2e9cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:12, skipping insertion in model container [2019-10-15 03:18:12,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:18:12" (1/1) ... [2019-10-15 03:18:12,510 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:18:12,600 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:18:13,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:18:13,427 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:18:13,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:18:13,636 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:18:13,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13 WrapperNode [2019-10-15 03:18:13,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:18:13,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:18:13,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:18:13,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:18:13,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (1/1) ... [2019-10-15 03:18:13,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (1/1) ... [2019-10-15 03:18:13,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (1/1) ... [2019-10-15 03:18:13,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (1/1) ... [2019-10-15 03:18:13,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (1/1) ... [2019-10-15 03:18:13,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (1/1) ... [2019-10-15 03:18:13,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (1/1) ... [2019-10-15 03:18:13,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:18:13,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:18:13,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:18:13,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:18:13,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (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 03:18:13,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:18:13,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:18:13,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:18:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:18:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:18:13,941 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:18:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:18:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:18:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:18:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:18:13,944 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:18:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:18:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:18:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:18:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:18:13,946 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:18:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:18:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:18:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:18:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:18:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:18:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:18:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:18:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:18:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:18:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:18:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:18:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:18:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:18:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:18:13,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:18:13,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:18:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:18:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:18:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:18:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:18:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:18:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:18:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:18:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:18:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:18:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:18:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:18:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:18:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:18:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:18:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:18:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:18:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:18:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:18:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:18:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:18:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:18:13,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:18:13,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:18:13,956 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:18:13,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:18:13,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:18:13,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:18:13,957 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:18:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:18:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:18:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:18:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:18:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:18:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:18:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:18:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 03:18:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:18:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:18:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:18:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:18:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:18:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:18:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:18:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:18:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:18:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:18:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:18:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:18:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:18:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:18:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:18:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:18:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:18:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:18:13,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:18:13,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:18:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:18:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:18:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:18:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:18:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:18:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:18:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:18:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:18:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:18:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:18:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:18:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:18:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:18:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:18:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:18:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:18:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:18:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:18:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 03:18:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 03:18:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:18:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-15 03:18:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:18:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:18:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:18:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:18:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:18:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:18:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:18:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:18:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:18:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:18:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:18:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:18:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:18:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:18:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:18:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:18:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:18:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:18:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:18:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:18:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:18:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:18:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:18:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:18:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:18:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:18:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:18:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:18:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:18:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:18:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:18:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:18:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:18:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:18:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:18:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:18:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:18:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:18:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:18:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:18:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:18:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:18:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:18:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:18:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:18:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:18:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:18:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:18:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:18:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:18:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:18:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:18:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:18:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:18:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:18:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:18:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:18:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:18:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:18:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:18:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:18:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:18:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:18:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:18:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:18:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:18:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:18:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:18:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:18:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:18:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:18:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:18:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:18:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:18:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:18:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:18:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:18:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:18:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:18:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:18:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:18:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:18:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:18:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:18:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:18:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:18:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:18:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:18:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:18:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:18:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:18:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:18:13,998 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:18:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:18:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:18:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:18:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:18:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:18:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:18:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:18:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:18:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:18:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:18:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:18:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:18:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:18:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:18:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:18:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:18:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:18:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 03:18:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:18:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 03:18:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:18:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:18:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:18:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 03:18:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:18:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:18:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:18:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:18:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:18:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:18:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:18:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:18:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:18:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:18:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:18:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:18:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:18:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:18:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-15 03:18:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:18:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:18:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:18:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:18:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:18:19,256 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:18:19,257 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:18:19,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:18:19 BoogieIcfgContainer [2019-10-15 03:18:19,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:18:19,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:18:19,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:18:19,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:18:19,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:18:12" (1/3) ... [2019-10-15 03:18:19,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd63124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:18:19, skipping insertion in model container [2019-10-15 03:18:19,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:13" (2/3) ... [2019-10-15 03:18:19,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd63124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:18:19, skipping insertion in model container [2019-10-15 03:18:19,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:18:19" (3/3) ... [2019-10-15 03:18:19,267 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product31.cil.c [2019-10-15 03:18:19,277 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:18:19,287 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:18:19,301 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:18:19,340 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:18:19,341 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:18:19,341 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:18:19,341 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:18:19,341 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:18:19,341 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:18:19,341 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:18:19,341 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:18:19,377 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2019-10-15 03:18:19,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-15 03:18:19,393 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:19,394 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] [2019-10-15 03:18:19,397 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:19,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:19,402 INFO L82 PathProgramCache]: Analyzing trace with hash -453097892, now seen corresponding path program 1 times [2019-10-15 03:18:19,412 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:19,412 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37164020] [2019-10-15 03:18:19,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:19,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:19,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:20,101 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 03:18:20,102 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37164020] [2019-10-15 03:18:20,103 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:20,103 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:18:20,104 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922916008] [2019-10-15 03:18:20,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:18:20,110 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:20,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:18:20,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:18:20,126 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 2 states. [2019-10-15 03:18:20,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:20,218 INFO L93 Difference]: Finished difference Result 634 states and 750 transitions. [2019-10-15 03:18:20,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:18:20,220 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-15 03:18:20,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:20,262 INFO L225 Difference]: With dead ends: 634 [2019-10-15 03:18:20,263 INFO L226 Difference]: Without dead ends: 392 [2019-10-15 03:18:20,277 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 03:18:20,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-10-15 03:18:20,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2019-10-15 03:18:20,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 392 states. [2019-10-15 03:18:20,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 463 transitions. [2019-10-15 03:18:20,379 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 463 transitions. Word has length 125 [2019-10-15 03:18:20,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:20,383 INFO L462 AbstractCegarLoop]: Abstraction has 392 states and 463 transitions. [2019-10-15 03:18:20,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:18:20,383 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 463 transitions. [2019-10-15 03:18:20,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-15 03:18:20,393 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:20,393 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] [2019-10-15 03:18:20,394 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:20,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:20,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1884440193, now seen corresponding path program 1 times [2019-10-15 03:18:20,398 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:20,399 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553430918] [2019-10-15 03:18:20,399 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:20,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:20,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:20,762 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 03:18:20,762 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553430918] [2019-10-15 03:18:20,763 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:20,763 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:20,763 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137777956] [2019-10-15 03:18:20,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:20,766 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:20,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:20,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:20,767 INFO L87 Difference]: Start difference. First operand 392 states and 463 transitions. Second operand 3 states. [2019-10-15 03:18:20,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:20,846 INFO L93 Difference]: Finished difference Result 619 states and 721 transitions. [2019-10-15 03:18:20,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:20,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-15 03:18:20,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:20,854 INFO L225 Difference]: With dead ends: 619 [2019-10-15 03:18:20,854 INFO L226 Difference]: Without dead ends: 394 [2019-10-15 03:18:20,857 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 03:18:20,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-10-15 03:18:20,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2019-10-15 03:18:20,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2019-10-15 03:18:20,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 465 transitions. [2019-10-15 03:18:20,924 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 465 transitions. Word has length 126 [2019-10-15 03:18:20,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:20,925 INFO L462 AbstractCegarLoop]: Abstraction has 394 states and 465 transitions. [2019-10-15 03:18:20,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:20,926 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 465 transitions. [2019-10-15 03:18:20,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-15 03:18:20,928 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:20,929 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] [2019-10-15 03:18:20,929 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:20,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:20,929 INFO L82 PathProgramCache]: Analyzing trace with hash 2088132550, now seen corresponding path program 1 times [2019-10-15 03:18:20,930 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:20,930 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869445497] [2019-10-15 03:18:20,930 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:20,930 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:20,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:21,222 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 03:18:21,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869445497] [2019-10-15 03:18:21,223 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:21,223 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:21,223 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987270124] [2019-10-15 03:18:21,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:21,224 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:21,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:21,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:21,225 INFO L87 Difference]: Start difference. First operand 394 states and 465 transitions. Second operand 3 states. [2019-10-15 03:18:21,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:21,264 INFO L93 Difference]: Finished difference Result 770 states and 937 transitions. [2019-10-15 03:18:21,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:21,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-15 03:18:21,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:21,269 INFO L225 Difference]: With dead ends: 770 [2019-10-15 03:18:21,269 INFO L226 Difference]: Without dead ends: 434 [2019-10-15 03:18:21,271 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 03:18:21,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-10-15 03:18:21,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 433. [2019-10-15 03:18:21,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-10-15 03:18:21,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 533 transitions. [2019-10-15 03:18:21,293 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 533 transitions. Word has length 131 [2019-10-15 03:18:21,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:21,294 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 533 transitions. [2019-10-15 03:18:21,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:21,294 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 533 transitions. [2019-10-15 03:18:21,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-15 03:18:21,297 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:21,298 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] [2019-10-15 03:18:21,298 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:21,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:21,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1271324716, now seen corresponding path program 1 times [2019-10-15 03:18:21,299 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:21,299 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248067612] [2019-10-15 03:18:21,299 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:21,299 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:21,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:21,558 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 03:18:21,558 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248067612] [2019-10-15 03:18:21,559 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:21,559 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:21,559 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930298108] [2019-10-15 03:18:21,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:21,560 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:21,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:21,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:21,561 INFO L87 Difference]: Start difference. First operand 433 states and 533 transitions. Second operand 3 states. [2019-10-15 03:18:21,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:21,614 INFO L93 Difference]: Finished difference Result 708 states and 849 transitions. [2019-10-15 03:18:21,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:21,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-10-15 03:18:21,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:21,621 INFO L225 Difference]: With dead ends: 708 [2019-10-15 03:18:21,621 INFO L226 Difference]: Without dead ends: 484 [2019-10-15 03:18:21,622 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 03:18:21,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2019-10-15 03:18:21,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2019-10-15 03:18:21,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2019-10-15 03:18:21,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 583 transitions. [2019-10-15 03:18:21,657 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 583 transitions. Word has length 132 [2019-10-15 03:18:21,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:21,658 INFO L462 AbstractCegarLoop]: Abstraction has 484 states and 583 transitions. [2019-10-15 03:18:21,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:21,658 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 583 transitions. [2019-10-15 03:18:21,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-15 03:18:21,663 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:21,664 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:21,664 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:21,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:21,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1038853163, now seen corresponding path program 1 times [2019-10-15 03:18:21,665 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:21,665 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622443082] [2019-10-15 03:18:21,666 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:21,666 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:21,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:22,681 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:22,682 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622443082] [2019-10-15 03:18:22,682 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298519347] [2019-10-15 03:18:22,683 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 03:18:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:23,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 3347 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:18:23,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:18:23,613 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-15 03:18:23,614 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:18:24,333 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:24,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [206416571] [2019-10-15 03:18:24,378 INFO L162 IcfgInterpreter]: Started Sifa with 195 locations of interest [2019-10-15 03:18:24,378 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:18:24,385 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:18:24,394 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:18:24,395 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs