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_spec8_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:12:44,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:12:44,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:12:44,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:12:44,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:12:44,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:12:44,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:12:44,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:12:44,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:12:44,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:12:44,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:12:44,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:12:44,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:12:44,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:12:44,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:12:44,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:12:44,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:12:44,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:12:44,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:12:44,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:12:44,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:12:44,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:12:44,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:12:44,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:12:44,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:12:44,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:12:44,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:12:44,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:12:44,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:12:44,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:12:44,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:12:44,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:12:44,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:12:44,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:12:44,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:12:44,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:12:44,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:12:44,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:12:44,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:12:44,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:12:44,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:12:44,500 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:12:44,520 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:12:44,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:12:44,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:12:44,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:12:44,524 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:12:44,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:12:44,524 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:12:44,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:12:44,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:12:44,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:12:44,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:12:44,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:12:44,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:12:44,527 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:12:44,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:12:44,527 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:12:44,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:12:44,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:12:44,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:12:44,528 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:12:44,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:12:44,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:44,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:12:44,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:12:44,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:12:44,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:12:44,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:12:44,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:12:44,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:12:44,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:12:44,827 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:12:44,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:12:44,834 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:12:44,835 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:12:44,835 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product31.cil.c [2019-10-13 23:12:44,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d81d3e99/49bd2514df774b62bc123833db524bfc/FLAGf54c16ec2 [2019-10-13 23:12:45,600 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:12:45,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product31.cil.c [2019-10-13 23:12:45,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d81d3e99/49bd2514df774b62bc123833db524bfc/FLAGf54c16ec2 [2019-10-13 23:12:45,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d81d3e99/49bd2514df774b62bc123833db524bfc [2019-10-13 23:12:45,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:12:45,789 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:12:45,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:45,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:12:45,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:12:45,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:45" (1/1) ... [2019-10-13 23:12:45,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2feeb304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:45, skipping insertion in model container [2019-10-13 23:12:45,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:45" (1/1) ... [2019-10-13 23:12:45,807 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:12:45,888 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:12:46,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:46,715 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:12:46,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:46,942 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:12:46,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46 WrapperNode [2019-10-13 23:12:46,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:46,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:12:46,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:12:46,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:12:46,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:47,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:47,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:47,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:47,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:12:47,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:12:47,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:12:47,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:12:47,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:12:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:12:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:12:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:12:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:12:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:12:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:12:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:12:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:12:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:12:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:12:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:12:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:12:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:12:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:12:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:12:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:12:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:12:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:12:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:12:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:12:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:12:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:12:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:12:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:12:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:12:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:12:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:12:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:12:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:12:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:12:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:12:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:12:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:12:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:12:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:12:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:12:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-13 23:12:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:12:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:12:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:12:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:12:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:12:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:12:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:12:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:12:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:12:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:12:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:12:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:12:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:12:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:12:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:12:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:12:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:12:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:12:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:12:47,276 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:12:47,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:12:47,276 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:12:47,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:12:47,276 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:12:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:12:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:12:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:12:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:12:47,277 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:12:47,278 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:12:47,278 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:12:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:12:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:12:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:12:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:12:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:12:47,281 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:12:47,281 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:12:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:12:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:12:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:12:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:12:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:12:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:12:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:12:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:12:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:12:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:12:47,284 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:12:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:12:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:12:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:12:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:12:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:12:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:12:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:12:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:12:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:12:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:12:47,286 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:12:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:12:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:12:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:12:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:12:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:12:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:12:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:12:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:12:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:12:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:12:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:47,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:12:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:12:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:12:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:12:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:12:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:12:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:12:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:12:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:12:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:12:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:12:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:12:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:12:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:12:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:12:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:12:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:12:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:12:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:12:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:12:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:12:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:12:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:12:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:12:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:12:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:12:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:12:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:12:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:12:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:12:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:12:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:12:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:12:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:12:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:12:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:12:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:12:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:12:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:12:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:12:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:12:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:12:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:12:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:12:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:12:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:12:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:12:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:12:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:12:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:12:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:12:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:12:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:12:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:12:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:12:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:12:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:12:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:12:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:12:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:12:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:12:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:12:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-13 23:12:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:12:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:12:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:12:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:12:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:12:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:12:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:12:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:12:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:12:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:12:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:12:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:12:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:12:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:12:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:12:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:12:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:12:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:12:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:12:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:12:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:12:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:12:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:12:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:12:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:12:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:12:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:12:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:12:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:12:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:12:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:12:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:12:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:12:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:12:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:12:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:12:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:12:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:12:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:12:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:12:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:12:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:12:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:12:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:12:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:12:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:12:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:12:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:12:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:12:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:12:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:12:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:12:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:12:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:12:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:12:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:12:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:12:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:12:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:12:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:12:52,203 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:12:52,204 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:12:52,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:52 BoogieIcfgContainer [2019-10-13 23:12:52,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:12:52,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:12:52,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:12:52,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:12:52,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:12:45" (1/3) ... [2019-10-13 23:12:52,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f14f4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:52, skipping insertion in model container [2019-10-13 23:12:52,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (2/3) ... [2019-10-13 23:12:52,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f14f4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:52, skipping insertion in model container [2019-10-13 23:12:52,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:52" (3/3) ... [2019-10-13 23:12:52,214 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product31.cil.c [2019-10-13 23:12:52,224 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:12:52,241 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:12:52,252 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:12:52,295 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:12:52,295 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:12:52,295 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:12:52,295 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:12:52,295 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:12:52,296 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:12:52,296 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:12:52,296 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:12:52,324 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2019-10-13 23:12:52,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-13 23:12:52,340 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:52,341 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] [2019-10-13 23:12:52,343 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:52,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:52,349 INFO L82 PathProgramCache]: Analyzing trace with hash 800009627, now seen corresponding path program 1 times [2019-10-13 23:12:52,359 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:52,359 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365611902] [2019-10-13 23:12:52,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:52,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:52,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:52,945 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:52,945 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365611902] [2019-10-13 23:12:52,946 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:52,947 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:12:52,947 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073785740] [2019-10-13 23:12:52,956 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:12:52,957 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:52,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:12:52,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:52,974 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 2 states. [2019-10-13 23:12:53,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:53,085 INFO L93 Difference]: Finished difference Result 634 states and 750 transitions. [2019-10-13 23:12:53,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:12:53,087 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-13 23:12:53,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:53,120 INFO L225 Difference]: With dead ends: 634 [2019-10-13 23:12:53,121 INFO L226 Difference]: Without dead ends: 392 [2019-10-13 23:12:53,133 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:53,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-10-13 23:12:53,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2019-10-13 23:12:53,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 392 states. [2019-10-13 23:12:53,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 463 transitions. [2019-10-13 23:12:53,246 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 463 transitions. Word has length 125 [2019-10-13 23:12:53,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:53,249 INFO L462 AbstractCegarLoop]: Abstraction has 392 states and 463 transitions. [2019-10-13 23:12:53,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:12:53,249 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 463 transitions. [2019-10-13 23:12:53,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-13 23:12:53,254 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:53,255 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] [2019-10-13 23:12:53,255 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:53,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:53,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1544480755, now seen corresponding path program 1 times [2019-10-13 23:12:53,256 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:53,256 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354124028] [2019-10-13 23:12:53,256 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,256 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:53,477 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:53,477 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354124028] [2019-10-13 23:12:53,478 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:53,478 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:53,478 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431005593] [2019-10-13 23:12:53,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:53,481 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:53,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:53,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:53,482 INFO L87 Difference]: Start difference. First operand 392 states and 463 transitions. Second operand 3 states. [2019-10-13 23:12:53,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:53,544 INFO L93 Difference]: Finished difference Result 619 states and 721 transitions. [2019-10-13 23:12:53,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:53,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-13 23:12:53,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:53,550 INFO L225 Difference]: With dead ends: 619 [2019-10-13 23:12:53,551 INFO L226 Difference]: Without dead ends: 394 [2019-10-13 23:12:53,554 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:53,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-10-13 23:12:53,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2019-10-13 23:12:53,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2019-10-13 23:12:53,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 465 transitions. [2019-10-13 23:12:53,601 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 465 transitions. Word has length 126 [2019-10-13 23:12:53,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:53,602 INFO L462 AbstractCegarLoop]: Abstraction has 394 states and 465 transitions. [2019-10-13 23:12:53,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:53,602 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 465 transitions. [2019-10-13 23:12:53,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-13 23:12:53,610 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:53,610 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] [2019-10-13 23:12:53,611 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:53,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:53,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1794060348, now seen corresponding path program 1 times [2019-10-13 23:12:53,611 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:53,612 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570275110] [2019-10-13 23:12:53,612 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,612 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:53,905 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:53,906 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570275110] [2019-10-13 23:12:53,906 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:53,906 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:53,906 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952532962] [2019-10-13 23:12:53,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:53,910 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:53,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:53,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:53,911 INFO L87 Difference]: Start difference. First operand 394 states and 465 transitions. Second operand 3 states. [2019-10-13 23:12:53,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:53,959 INFO L93 Difference]: Finished difference Result 770 states and 937 transitions. [2019-10-13 23:12:53,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:53,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-13 23:12:53,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:53,969 INFO L225 Difference]: With dead ends: 770 [2019-10-13 23:12:53,969 INFO L226 Difference]: Without dead ends: 434 [2019-10-13 23:12:53,971 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:53,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-10-13 23:12:53,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 433. [2019-10-13 23:12:53,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-10-13 23:12:54,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 533 transitions. [2019-10-13 23:12:54,003 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 533 transitions. Word has length 131 [2019-10-13 23:12:54,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:54,004 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 533 transitions. [2019-10-13 23:12:54,004 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:54,004 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 533 transitions. [2019-10-13 23:12:54,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:12:54,012 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:54,012 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] [2019-10-13 23:12:54,013 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:54,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:54,013 INFO L82 PathProgramCache]: Analyzing trace with hash 420623112, now seen corresponding path program 1 times [2019-10-13 23:12:54,013 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:54,013 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676691947] [2019-10-13 23:12:54,014 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,014 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:54,245 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:12:54,245 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676691947] [2019-10-13 23:12:54,246 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:54,246 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:54,246 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145924303] [2019-10-13 23:12:54,247 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:54,247 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:54,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:54,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:54,247 INFO L87 Difference]: Start difference. First operand 433 states and 533 transitions. Second operand 3 states. [2019-10-13 23:12:54,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:54,296 INFO L93 Difference]: Finished difference Result 708 states and 849 transitions. [2019-10-13 23:12:54,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:54,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-10-13 23:12:54,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:54,307 INFO L225 Difference]: With dead ends: 708 [2019-10-13 23:12:54,307 INFO L226 Difference]: Without dead ends: 484 [2019-10-13 23:12:54,309 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 [2019-10-13 23:12:54,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2019-10-13 23:12:54,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2019-10-13 23:12:54,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2019-10-13 23:12:54,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 583 transitions. [2019-10-13 23:12:54,354 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 583 transitions. Word has length 132 [2019-10-13 23:12:54,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:54,356 INFO L462 AbstractCegarLoop]: Abstraction has 484 states and 583 transitions. [2019-10-13 23:12:54,356 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:54,357 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 583 transitions. [2019-10-13 23:12:54,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-13 23:12:54,366 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:54,367 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] [2019-10-13 23:12:54,367 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:54,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:54,368 INFO L82 PathProgramCache]: Analyzing trace with hash -145523589, now seen corresponding path program 1 times [2019-10-13 23:12:54,368 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:54,369 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074334859] [2019-10-13 23:12:54,369 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,370 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:55,247 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:12:55,248 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074334859] [2019-10-13 23:12:55,248 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414278200] [2019-10-13 23:12:55,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:12:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:55,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 3347 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:12:55,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:12:56,118 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-13 23:12:56,118 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:12:56,881 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:12:56,882 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2128459991] [2019-10-13 23:12:56,933 INFO L162 IcfgInterpreter]: Started Sifa with 195 locations of interest [2019-10-13 23:12:56,934 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:12:56,943 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:12:56,955 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:12:56,955 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs