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_spec1_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:07:34,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:07:34,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:07:34,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:07:34,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:07:34,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:07:34,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:07:34,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:07:34,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:07:34,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:07:34,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:07:34,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:07:34,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:07:34,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:07:34,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:07:34,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:07:34,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:07:34,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:07:34,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:07:34,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:07:34,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:07:34,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:07:34,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:07:34,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:07:34,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:07:34,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:07:34,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:07:34,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:07:34,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:07:34,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:07:34,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:07:34,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:07:34,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:07:34,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:07:34,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:07:34,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:07:34,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:07:34,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:07:34,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:07:34,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:07:34,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:07:34,325 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 23:07:34,346 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:07:34,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:07:34,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:07:34,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:07:34,350 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:07:34,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:07:34,350 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:07:34,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:07:34,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:07:34,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:07:34,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:07:34,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:07:34,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:07:34,353 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:07:34,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:07:34,353 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:07:34,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:07:34,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:07:34,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:07:34,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:07:34,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:07:34,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:07:34,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:07:34,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:07:34,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:07:34,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:07:34,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:07:34,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:07:34,356 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 23:07:34,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:07:34,686 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:07:34,690 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:07:34,691 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:07:34,692 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:07:34,692 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product15.cil.c [2019-10-13 23:07:34,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0b13d859/718d7f80d6c74336940227782c4fd439/FLAG75053ef8b [2019-10-13 23:07:35,350 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:07:35,351 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product15.cil.c [2019-10-13 23:07:35,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0b13d859/718d7f80d6c74336940227782c4fd439/FLAG75053ef8b [2019-10-13 23:07:35,543 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0b13d859/718d7f80d6c74336940227782c4fd439 [2019-10-13 23:07:35,554 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:07:35,557 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:07:35,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:07:35,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:07:35,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:07:35,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:07:35" (1/1) ... [2019-10-13 23:07:35,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ce804d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:35, skipping insertion in model container [2019-10-13 23:07:35,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:07:35" (1/1) ... [2019-10-13 23:07:35,579 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:07:35,662 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:07:36,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:07:36,515 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:07:36,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:07:36,728 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:07:36,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:36 WrapperNode [2019-10-13 23:07:36,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:07:36,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:07:36,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:07:36,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:07:36,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:36" (1/1) ... [2019-10-13 23:07:36,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:36" (1/1) ... [2019-10-13 23:07:36,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:36" (1/1) ... [2019-10-13 23:07:36,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:36" (1/1) ... [2019-10-13 23:07:36,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:36" (1/1) ... [2019-10-13 23:07:36,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:36" (1/1) ... [2019-10-13 23:07:36,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:36" (1/1) ... [2019-10-13 23:07:36,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:07:36,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:07:36,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:07:36,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:07:36,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:36" (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 23:07:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:07:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:07:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:07:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:07:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:07:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:07:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:07:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:07:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:07:37,054 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:07:37,054 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:07:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:07:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:07:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:07:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:07:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:07:37,058 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:07:37,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:07:37,059 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:07:37,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:07:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:07:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:07:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:07:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:07:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:07:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:07:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:07:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:07:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:07:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:07:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:07:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:07:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:07:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:07:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:07:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:07:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:07:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:07:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:07:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:07:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:07:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:07:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:07:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:07:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:07:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:07:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:07:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:07:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:07:37,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:07:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:07:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:07:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:07:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:07:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:07:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:07:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:07:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:07:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:07:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:07:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:07:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:07:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:07:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:07:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:07:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:07:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:07:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:07:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:07:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:07:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:07:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:07:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:07:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:07:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:07:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:07:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:07:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:07:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:07:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:07:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:07:37,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:07:37,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:07:37,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:07:37,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:07:37,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:07:37,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:07:37,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 23:07:37,076 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:07:37,076 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:07:37,077 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:07:37,077 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:07:37,077 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:07:37,077 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-13 23:07:37,077 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:07:37,077 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:07:37,078 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:07:37,078 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:07:37,078 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:07:37,078 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:07:37,078 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:07:37,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:07:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:07:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:07:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:07:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:07:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:07:37,080 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:07:37,080 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:07:37,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:07:37,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:07:37,080 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:07:37,081 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:07:37,081 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:07:37,081 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:07:37,081 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:07:37,081 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:07:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:07:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:07:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:07:37,083 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:07:37,083 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:07:37,083 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:07:37,083 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:07:37,085 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:07:37,085 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:07:37,085 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:07:37,085 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:07:37,085 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:07:37,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:07:37,086 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:07:37,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:07:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:07:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:07:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:07:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:07:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:07:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:07:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:07:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:07:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:07:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:07:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:07:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:07:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:07:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:07:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:07:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:07:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:07:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:07:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:07:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:07:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:07:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:07:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:07:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:07:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:07:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:07:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:07:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:07:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:07:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:07:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:07:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:07:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:07:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:07:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:07:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:07:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:07:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:07:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:07:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:07:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:07:37,109 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:07:37,109 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:07:37,109 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:07:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:07:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:07:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:07:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:07:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:07:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:07:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:07:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:07:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:07:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:07:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:07:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:07:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:07:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:07:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:07:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:07:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:07:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:07:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:07:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:07:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:07:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:07:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:07:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:07:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:07:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:07:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:07:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:07:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:07:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:07:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:07:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:07:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:07:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:07:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:07:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:07:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:07:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:07:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:07:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:07:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:07:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 23:07:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:07:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:07:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:07:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:07:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:07:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:07:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:07:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:07:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:07:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-13 23:07:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:07:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:07:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:07:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:07:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:07:41,808 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:07:41,808 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:07:41,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:07:41 BoogieIcfgContainer [2019-10-13 23:07:41,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:07:41,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:07:41,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:07:41,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:07:41,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:07:35" (1/3) ... [2019-10-13 23:07:41,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3616f746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:07:41, skipping insertion in model container [2019-10-13 23:07:41,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:36" (2/3) ... [2019-10-13 23:07:41,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3616f746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:07:41, skipping insertion in model container [2019-10-13 23:07:41,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:07:41" (3/3) ... [2019-10-13 23:07:41,818 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product15.cil.c [2019-10-13 23:07:41,828 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:07:41,837 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:07:41,849 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:07:41,878 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:07:41,878 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:07:41,878 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:07:41,878 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:07:41,878 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:07:41,879 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:07:41,879 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:07:41,879 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:07:41,904 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2019-10-13 23:07:41,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 23:07:41,919 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:41,920 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 23:07:41,922 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:41,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:41,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1300469455, now seen corresponding path program 1 times [2019-10-13 23:07:41,939 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:41,939 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931312704] [2019-10-13 23:07:41,940 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:41,940 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:41,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:42,510 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 23:07:42,510 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931312704] [2019-10-13 23:07:42,511 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:42,512 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:07:42,512 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131811704] [2019-10-13 23:07:42,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:07:42,518 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:42,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:07:42,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:07:42,536 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 2 states. [2019-10-13 23:07:42,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:42,613 INFO L93 Difference]: Finished difference Result 448 states and 529 transitions. [2019-10-13 23:07:42,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:07:42,615 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-13 23:07:42,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:42,635 INFO L225 Difference]: With dead ends: 448 [2019-10-13 23:07:42,635 INFO L226 Difference]: Without dead ends: 299 [2019-10-13 23:07:42,644 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 23:07:42,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2019-10-13 23:07:42,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2019-10-13 23:07:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2019-10-13 23:07:42,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 353 transitions. [2019-10-13 23:07:42,740 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 353 transitions. Word has length 114 [2019-10-13 23:07:42,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:42,742 INFO L462 AbstractCegarLoop]: Abstraction has 299 states and 353 transitions. [2019-10-13 23:07:42,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:07:42,742 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 353 transitions. [2019-10-13 23:07:42,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-13 23:07:42,748 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:42,750 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 23:07:42,751 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:42,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:42,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1904843713, now seen corresponding path program 1 times [2019-10-13 23:07:42,751 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:42,752 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636775736] [2019-10-13 23:07:42,752 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:42,752 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:42,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:43,086 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 23:07:43,087 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636775736] [2019-10-13 23:07:43,087 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:43,087 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:07:43,088 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541147709] [2019-10-13 23:07:43,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:07:43,091 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:43,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:07:43,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:43,092 INFO L87 Difference]: Start difference. First operand 299 states and 353 transitions. Second operand 3 states. [2019-10-13 23:07:43,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:43,176 INFO L93 Difference]: Finished difference Result 433 states and 501 transitions. [2019-10-13 23:07:43,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:07:43,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-13 23:07:43,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:43,184 INFO L225 Difference]: With dead ends: 433 [2019-10-13 23:07:43,184 INFO L226 Difference]: Without dead ends: 301 [2019-10-13 23:07:43,192 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 23:07:43,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2019-10-13 23:07:43,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2019-10-13 23:07:43,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2019-10-13 23:07:43,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 355 transitions. [2019-10-13 23:07:43,222 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 355 transitions. Word has length 115 [2019-10-13 23:07:43,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:43,223 INFO L462 AbstractCegarLoop]: Abstraction has 301 states and 355 transitions. [2019-10-13 23:07:43,223 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:07:43,223 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 355 transitions. [2019-10-13 23:07:43,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-13 23:07:43,226 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:43,227 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] [2019-10-13 23:07:43,227 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:43,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:43,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1785290814, now seen corresponding path program 1 times [2019-10-13 23:07:43,228 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:43,228 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279045486] [2019-10-13 23:07:43,228 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:43,228 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:43,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:43,376 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 23:07:43,376 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279045486] [2019-10-13 23:07:43,377 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:43,377 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:07:43,377 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491234280] [2019-10-13 23:07:43,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:07:43,378 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:43,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:07:43,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:43,379 INFO L87 Difference]: Start difference. First operand 301 states and 355 transitions. Second operand 3 states. [2019-10-13 23:07:43,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:43,414 INFO L93 Difference]: Finished difference Result 584 states and 717 transitions. [2019-10-13 23:07:43,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:07:43,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2019-10-13 23:07:43,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:43,420 INFO L225 Difference]: With dead ends: 584 [2019-10-13 23:07:43,421 INFO L226 Difference]: Without dead ends: 341 [2019-10-13 23:07:43,428 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 23:07:43,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-10-13 23:07:43,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 340. [2019-10-13 23:07:43,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-10-13 23:07:43,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 423 transitions. [2019-10-13 23:07:43,475 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 423 transitions. Word has length 124 [2019-10-13 23:07:43,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:43,476 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 423 transitions. [2019-10-13 23:07:43,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:07:43,476 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 423 transitions. [2019-10-13 23:07:43,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-13 23:07:43,480 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:43,480 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] [2019-10-13 23:07:43,481 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:43,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:43,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1032980240, now seen corresponding path program 1 times [2019-10-13 23:07:43,481 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:43,481 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966989705] [2019-10-13 23:07:43,482 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:43,482 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:43,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:43,625 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 23:07:43,626 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966989705] [2019-10-13 23:07:43,626 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:43,626 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:07:43,626 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767153706] [2019-10-13 23:07:43,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:07:43,627 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:43,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:07:43,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:43,628 INFO L87 Difference]: Start difference. First operand 340 states and 423 transitions. Second operand 3 states. [2019-10-13 23:07:43,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:43,662 INFO L93 Difference]: Finished difference Result 698 states and 916 transitions. [2019-10-13 23:07:43,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:07:43,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2019-10-13 23:07:43,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:43,667 INFO L225 Difference]: With dead ends: 698 [2019-10-13 23:07:43,667 INFO L226 Difference]: Without dead ends: 416 [2019-10-13 23:07:43,669 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 23:07:43,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-10-13 23:07:43,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 415. [2019-10-13 23:07:43,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2019-10-13 23:07:43,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 553 transitions. [2019-10-13 23:07:43,695 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 553 transitions. Word has length 125 [2019-10-13 23:07:43,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:43,695 INFO L462 AbstractCegarLoop]: Abstraction has 415 states and 553 transitions. [2019-10-13 23:07:43,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:07:43,696 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 553 transitions. [2019-10-13 23:07:43,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-13 23:07:43,699 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:43,699 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 23:07:43,699 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:43,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:43,700 INFO L82 PathProgramCache]: Analyzing trace with hash 2092358711, now seen corresponding path program 1 times [2019-10-13 23:07:43,700 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:43,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269924550] [2019-10-13 23:07:43,701 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:43,701 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:43,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:43,945 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:07:43,946 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269924550] [2019-10-13 23:07:43,946 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073953182] [2019-10-13 23:07:43,946 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 23:07:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:44,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 2336 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:07:44,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:07:44,581 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:07:44,581 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:07:44,790 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:07:44,790 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [306167863] [2019-10-13 23:07:44,828 INFO L162 IcfgInterpreter]: Started Sifa with 117 locations of interest [2019-10-13 23:07:44,828 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:07:44,841 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:07:44,850 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:07:44,851 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:08:15,418 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-13 23:08:18,693 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 254 DAG size of output: 207