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_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:12:40,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:12:40,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:12:40,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:12:40,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:12:40,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:12:40,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:12:40,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:12:40,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:12:40,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:12:40,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:12:40,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:12:40,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:12:40,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:12:40,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:12:40,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:12:40,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:12:40,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:12:40,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:12:40,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:12:40,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:12:40,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:12:40,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:12:40,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:12:40,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:12:40,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:12:40,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:12:40,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:12:40,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:12:40,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:12:40,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:12:40,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:12:40,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:12:40,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:12:40,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:12:40,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:12:40,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:12:40,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:12:40,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:12:40,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:12:40,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:12:40,733 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 23:12:40,747 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:12:40,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:12:40,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:12:40,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:12:40,749 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:12:40,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:12:40,749 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:12:40,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:12:40,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:12:40,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:12:40,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:12:40,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:12:40,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:12:40,751 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:12:40,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:12:40,751 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:12:40,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:12:40,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:12:40,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:12:40,752 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:12:40,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:12:40,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:40,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:12:40,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:12:40,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:12:40,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:12:40,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:12:40,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:12:40,754 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 23:12:41,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:12:41,062 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:12:41,065 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:12:41,067 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:12:41,067 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:12:41,068 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product22.cil.c [2019-10-13 23:12:41,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3804c42af/3a6a34d407ee424a91c302b31f20a9b2/FLAGb78e80252 [2019-10-13 23:12:41,690 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:12:41,691 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product22.cil.c [2019-10-13 23:12:41,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3804c42af/3a6a34d407ee424a91c302b31f20a9b2/FLAGb78e80252 [2019-10-13 23:12:41,964 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3804c42af/3a6a34d407ee424a91c302b31f20a9b2 [2019-10-13 23:12:41,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:12:41,974 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:12:41,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:41,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:12:41,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:12:41,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:41" (1/1) ... [2019-10-13 23:12:41,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e8ed57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:41, skipping insertion in model container [2019-10-13 23:12:41,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:41" (1/1) ... [2019-10-13 23:12:41,989 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:12:42,066 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:12:42,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:42,810 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:12:42,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:43,068 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:12:43,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:43 WrapperNode [2019-10-13 23:12:43,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:43,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:12:43,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:12:43,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:12:43,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:43" (1/1) ... [2019-10-13 23:12:43,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:43" (1/1) ... [2019-10-13 23:12:43,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:43" (1/1) ... [2019-10-13 23:12:43,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:43" (1/1) ... [2019-10-13 23:12:43,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:43" (1/1) ... [2019-10-13 23:12:43,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:43" (1/1) ... [2019-10-13 23:12:43,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:43" (1/1) ... [2019-10-13 23:12:43,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:12:43,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:12:43,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:12:43,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:12:43,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:43" (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 23:12:43,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:12:43,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:12:43,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:43,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:12:43,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:12:43,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:12:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:43,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:12:43,396 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:12:43,396 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:12:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:12:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:12:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:12:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:12:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:12:43,400 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:12:43,401 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:12:43,401 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:12:43,401 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:12:43,401 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:12:43,402 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:12:43,403 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:12:43,403 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:12:43,404 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:12:43,404 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:12:43,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:12:43,406 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:12:43,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:12:43,406 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:12:43,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:12:43,407 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:12:43,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:12:43,407 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:12:43,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:12:43,407 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:12:43,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:12:43,408 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:12:43,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:12:43,408 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:12:43,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:12:43,408 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:12:43,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:12:43,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:12:43,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:12:43,409 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:12:43,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:43,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:43,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:43,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:12:43,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:12:43,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:12:43,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:12:43,411 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:12:43,411 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:12:43,411 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:12:43,411 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:12:43,412 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:12:43,412 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:12:43,413 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-13 23:12:43,413 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:12:43,413 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:12:43,413 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:12:43,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:12:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:12:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:12:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:12:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:12:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:12:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:12:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:12:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:12:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:12:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:12:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:12:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:12:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:12:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:12:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:12:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:12:43,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:12:43,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:12:43,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:12:43,419 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:12:43,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:12:43,420 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:12:43,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:12:43,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:12:43,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:12:43,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:12:43,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:12:43,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:12:43,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:12:43,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:12:43,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:12:43,422 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:12:43,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:12:43,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:12:43,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:12:43,423 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:12:43,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:12:43,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:12:43,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:12:43,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:12:43,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:12:43,424 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:12:43,424 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:12:43,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:12:43,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:12:43,424 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:12:43,424 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:12:43,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:43,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:43,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:12:43,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:12:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:12:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:12:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:12:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:12:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:12:43,430 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:12:43,430 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:12:43,430 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:12:43,430 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:12:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:12:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:12:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:12:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:12:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:12:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:12:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:12:43,433 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:12:43,433 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:12:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:12:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:12:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:12:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:12:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:12:43,439 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:12:43,439 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:12:43,439 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:12:43,439 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:12:43,439 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:12:43,440 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:12:43,447 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:12:43,447 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:12:43,447 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:12:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:12:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:12:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:12:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:12:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:12:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:12:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:12:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:12:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:12:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:12:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:12:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:12:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:12:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:12:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:12:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:12:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:12:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:12:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:12:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:12:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:12:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:12:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:12:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:12:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:12:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:12:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:12:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:12:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:12:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:12:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:12:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:12:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:12:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:12:43,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:12:43,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:12:43,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:12:43,454 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:43,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:12:43,455 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:43,455 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:43,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:12:43,455 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:12:43,455 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:12:43,455 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:12:43,455 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:12:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:12:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:12:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:12:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:12:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:12:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:12:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:12:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:12:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:12:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:12:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:12:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:12:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:12:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:12:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:12:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:12:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:12:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:12:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:12:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-13 23:12:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:12:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:12:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:12:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:12:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:12:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:12:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:12:43,460 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:12:43,460 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:12:43,460 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:12:43,460 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:12:43,460 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:12:43,461 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:12:43,461 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:12:43,461 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:12:43,461 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:12:43,461 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:12:43,461 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:12:43,461 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:12:43,461 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:12:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:12:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:12:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:12:49,086 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:12:49,086 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:12:49,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:49 BoogieIcfgContainer [2019-10-13 23:12:49,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:12:49,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:12:49,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:12:49,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:12:49,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:12:41" (1/3) ... [2019-10-13 23:12:49,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e0b2e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:49, skipping insertion in model container [2019-10-13 23:12:49,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:43" (2/3) ... [2019-10-13 23:12:49,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e0b2e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:49, skipping insertion in model container [2019-10-13 23:12:49,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:49" (3/3) ... [2019-10-13 23:12:49,097 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product22.cil.c [2019-10-13 23:12:49,108 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:12:49,119 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:12:49,133 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:12:49,165 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:12:49,166 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:12:49,166 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:12:49,166 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:12:49,166 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:12:49,167 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:12:49,167 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:12:49,167 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:12:49,208 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states. [2019-10-13 23:12:49,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 23:12:49,240 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:49,241 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] [2019-10-13 23:12:49,245 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:49,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:49,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1071058540, now seen corresponding path program 1 times [2019-10-13 23:12:49,268 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:49,268 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140012653] [2019-10-13 23:12:49,269 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:49,269 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:49,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:50,093 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 23:12:50,093 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140012653] [2019-10-13 23:12:50,095 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:50,095 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:12:50,095 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325893302] [2019-10-13 23:12:50,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:12:50,102 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:50,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:12:50,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:50,125 INFO L87 Difference]: Start difference. First operand 375 states. Second operand 2 states. [2019-10-13 23:12:50,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:50,192 INFO L93 Difference]: Finished difference Result 551 states and 650 transitions. [2019-10-13 23:12:50,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:12:50,194 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-13 23:12:50,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:50,215 INFO L225 Difference]: With dead ends: 551 [2019-10-13 23:12:50,215 INFO L226 Difference]: Without dead ends: 354 [2019-10-13 23:12:50,221 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 23:12:50,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2019-10-13 23:12:50,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2019-10-13 23:12:50,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-10-13 23:12:50,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 417 transitions. [2019-10-13 23:12:50,304 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 417 transitions. Word has length 114 [2019-10-13 23:12:50,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:50,306 INFO L462 AbstractCegarLoop]: Abstraction has 354 states and 417 transitions. [2019-10-13 23:12:50,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:12:50,307 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 417 transitions. [2019-10-13 23:12:50,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-13 23:12:50,310 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:50,311 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] [2019-10-13 23:12:50,311 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:50,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:50,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1986530798, now seen corresponding path program 1 times [2019-10-13 23:12:50,312 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:50,312 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325240992] [2019-10-13 23:12:50,312 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:50,312 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:50,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:50,586 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 23:12:50,586 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325240992] [2019-10-13 23:12:50,586 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:50,587 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:50,587 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954093016] [2019-10-13 23:12:50,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:50,592 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:50,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:50,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:50,593 INFO L87 Difference]: Start difference. First operand 354 states and 417 transitions. Second operand 3 states. [2019-10-13 23:12:50,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:50,674 INFO L93 Difference]: Finished difference Result 536 states and 622 transitions. [2019-10-13 23:12:50,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:50,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-13 23:12:50,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:50,682 INFO L225 Difference]: With dead ends: 536 [2019-10-13 23:12:50,682 INFO L226 Difference]: Without dead ends: 356 [2019-10-13 23:12:50,687 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 23:12:50,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-10-13 23:12:50,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-10-13 23:12:50,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-10-13 23:12:50,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 419 transitions. [2019-10-13 23:12:50,744 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 419 transitions. Word has length 115 [2019-10-13 23:12:50,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:50,747 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 419 transitions. [2019-10-13 23:12:50,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 419 transitions. [2019-10-13 23:12:50,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-13 23:12:50,751 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:50,751 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] [2019-10-13 23:12:50,752 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:50,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:50,756 INFO L82 PathProgramCache]: Analyzing trace with hash 652216192, now seen corresponding path program 1 times [2019-10-13 23:12:50,757 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:50,757 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188437366] [2019-10-13 23:12:50,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:50,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:50,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:50,985 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 23:12:50,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188437366] [2019-10-13 23:12:50,986 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:50,987 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:50,987 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827300378] [2019-10-13 23:12:50,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:50,989 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:50,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:50,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:50,989 INFO L87 Difference]: Start difference. First operand 356 states and 419 transitions. Second operand 3 states. [2019-10-13 23:12:51,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:51,040 INFO L93 Difference]: Finished difference Result 696 states and 848 transitions. [2019-10-13 23:12:51,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:51,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-10-13 23:12:51,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:51,045 INFO L225 Difference]: With dead ends: 696 [2019-10-13 23:12:51,045 INFO L226 Difference]: Without dead ends: 398 [2019-10-13 23:12:51,047 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 23:12:51,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-10-13 23:12:51,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 397. [2019-10-13 23:12:51,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-10-13 23:12:51,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 490 transitions. [2019-10-13 23:12:51,085 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 490 transitions. Word has length 127 [2019-10-13 23:12:51,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:51,085 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 490 transitions. [2019-10-13 23:12:51,085 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:51,085 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 490 transitions. [2019-10-13 23:12:51,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-13 23:12:51,090 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:51,090 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] [2019-10-13 23:12:51,091 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:51,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:51,092 INFO L82 PathProgramCache]: Analyzing trace with hash -846358647, now seen corresponding path program 1 times [2019-10-13 23:12:51,093 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:51,093 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45555728] [2019-10-13 23:12:51,093 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:51,093 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:51,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:51,449 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 23:12:51,450 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45555728] [2019-10-13 23:12:51,450 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:51,451 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:51,451 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522916776] [2019-10-13 23:12:51,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:51,452 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:51,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:51,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:51,453 INFO L87 Difference]: Start difference. First operand 397 states and 490 transitions. Second operand 3 states. [2019-10-13 23:12:51,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:51,488 INFO L93 Difference]: Finished difference Result 610 states and 733 transitions. [2019-10-13 23:12:51,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:51,489 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-13 23:12:51,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:51,495 INFO L225 Difference]: With dead ends: 610 [2019-10-13 23:12:51,495 INFO L226 Difference]: Without dead ends: 431 [2019-10-13 23:12:51,496 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 23:12:51,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-10-13 23:12:51,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2019-10-13 23:12:51,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2019-10-13 23:12:51,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 522 transitions. [2019-10-13 23:12:51,533 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 522 transitions. Word has length 128 [2019-10-13 23:12:51,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:51,536 INFO L462 AbstractCegarLoop]: Abstraction has 431 states and 522 transitions. [2019-10-13 23:12:51,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:51,536 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 522 transitions. [2019-10-13 23:12:51,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-13 23:12:51,550 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:51,550 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:12:51,550 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:51,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:51,551 INFO L82 PathProgramCache]: Analyzing trace with hash -911134715, now seen corresponding path program 1 times [2019-10-13 23:12:51,551 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:51,552 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889729428] [2019-10-13 23:12:51,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:51,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:51,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:51,926 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:12:51,927 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889729428] [2019-10-13 23:12:51,927 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:51,927 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 23:12:51,928 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69738022] [2019-10-13 23:12:51,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:12:51,929 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:51,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:12:51,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:12:51,930 INFO L87 Difference]: Start difference. First operand 431 states and 522 transitions. Second operand 11 states. [2019-10-13 23:12:54,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:54,838 INFO L93 Difference]: Finished difference Result 555 states and 648 transitions. [2019-10-13 23:12:54,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:12:54,838 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 222 [2019-10-13 23:12:54,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:54,846 INFO L225 Difference]: With dead ends: 555 [2019-10-13 23:12:54,847 INFO L226 Difference]: Without dead ends: 487 [2019-10-13 23:12:54,848 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:12:54,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2019-10-13 23:12:54,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 485. [2019-10-13 23:12:54,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2019-10-13 23:12:54,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 576 transitions. [2019-10-13 23:12:54,875 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 576 transitions. Word has length 222 [2019-10-13 23:12:54,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:54,876 INFO L462 AbstractCegarLoop]: Abstraction has 485 states and 576 transitions. [2019-10-13 23:12:54,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:12:54,877 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 576 transitions. [2019-10-13 23:12:54,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-13 23:12:54,881 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:54,881 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:12:54,881 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:54,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:54,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1841568789, now seen corresponding path program 1 times [2019-10-13 23:12:54,882 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:54,883 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664574125] [2019-10-13 23:12:54,883 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,883 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:55,583 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-13 23:12:55,583 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664574125] [2019-10-13 23:12:55,584 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730549975] [2019-10-13 23:12:55,584 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 23:12:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:56,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 3027 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:12:56,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:12:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 23:12:56,438 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:12:57,208 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:12:57,209 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [217867504] [2019-10-13 23:12:57,264 INFO L162 IcfgInterpreter]: Started Sifa with 195 locations of interest [2019-10-13 23:12:57,264 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:12:57,274 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:12:57,286 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:12:57,287 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs