/usr/bin/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_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:26:46,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:26:46,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:26:46,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:26:46,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:26:46,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:26:46,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:26:46,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:26:46,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:26:46,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:26:46,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:26:46,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:26:46,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:26:46,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:26:46,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:26:46,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:26:46,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:26:46,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:26:46,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:26:46,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:26:46,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:26:46,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:26:46,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:26:46,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:26:46,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:26:46,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:26:46,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:26:46,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:26:46,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:26:46,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:26:46,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:26:46,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:26:46,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:26:46,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:26:46,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:26:46,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:26:46,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:26:46,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:26:46,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:26:46,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:26:46,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:26:46,336 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 [2019-11-07 04:26:46,351 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:26:46,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:26:46,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:26:46,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:26:46,352 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:26:46,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:26:46,353 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:26:46,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:26:46,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:26:46,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:26:46,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:26:46,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:26:46,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:26:46,354 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:26:46,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:26:46,354 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:26:46,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:26:46,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:26:46,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:26:46,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:26:46,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:26:46,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:26:46,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:26:46,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:26:46,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:26:46,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:26:46,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:26:46,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:26:46,357 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 [2019-11-07 04:26:46,650 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:26:46,664 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:26:46,667 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:26:46,669 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:26:46,669 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:26:46,670 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_productSimulator.cil.c [2019-11-07 04:26:46,745 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f19e97c0f/f4efe509d44b44cd8407e43d0ddacd92/FLAGd7c94b8ff [2019-11-07 04:26:47,342 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:26:47,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_productSimulator.cil.c [2019-11-07 04:26:47,377 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f19e97c0f/f4efe509d44b44cd8407e43d0ddacd92/FLAGd7c94b8ff [2019-11-07 04:26:47,564 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f19e97c0f/f4efe509d44b44cd8407e43d0ddacd92 [2019-11-07 04:26:47,574 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:26:47,575 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:26:47,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:26:47,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:26:47,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:26:47,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:26:47" (1/1) ... [2019-11-07 04:26:47,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2924b2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:47, skipping insertion in model container [2019-11-07 04:26:47,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:26:47" (1/1) ... [2019-11-07 04:26:47,592 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:26:47,677 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:26:48,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:26:48,559 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:26:48,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:26:48,898 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:26:48,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:48 WrapperNode [2019-11-07 04:26:48,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:26:48,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:26:48,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:26:48,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:26:48,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:48" (1/1) ... [2019-11-07 04:26:48,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:48" (1/1) ... [2019-11-07 04:26:48,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:48" (1/1) ... [2019-11-07 04:26:48,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:48" (1/1) ... [2019-11-07 04:26:49,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:48" (1/1) ... [2019-11-07 04:26:49,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:48" (1/1) ... [2019-11-07 04:26:49,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:48" (1/1) ... [2019-11-07 04:26:49,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:26:49,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:26:49,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:26:49,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:26:49,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:48" (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 [2019-11-07 04:26:49,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:26:49,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:26:49,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:26:49,242 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:26:49,242 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:26:49,242 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:26:49,242 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:26:49,242 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:26:49,243 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:26:49,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:26:49,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:26:49,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:26:49,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:26:49,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:26:49,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:26:49,244 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:26:49,244 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:26:49,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:26:49,244 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:26:49,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:26:49,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:26:49,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:26:49,245 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:26:49,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:26:49,246 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:26:49,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:26:49,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:26:49,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:26:49,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:26:49,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:26:49,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:26:49,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:26:49,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:26:49,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:26:49,247 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:26:49,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:26:49,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:26:49,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:26:49,248 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:26:49,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:26:49,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:26:49,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:26:49,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:26:49,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:26:49,249 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:26:49,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:26:49,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:26:49,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:26:49,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:26:49,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:26:49,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:26:49,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:26:49,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:26:49,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:26:49,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:26:49,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:26:49,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:26:49,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:26:49,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:26:49,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:26:49,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:26:49,252 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:26:49,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:26:49,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:26:49,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:26:49,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-11-07 04:26:49,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-11-07 04:26:49,252 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-11-07 04:26:49,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-11-07 04:26:49,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-11-07 04:26:49,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-11-07 04:26:49,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-11-07 04:26:49,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-11-07 04:26:49,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:26:49,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-11-07 04:26:49,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-11-07 04:26:49,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:26:49,254 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:26:49,254 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:26:49,254 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:26:49,254 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-11-07 04:26:49,255 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-11-07 04:26:49,255 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-11-07 04:26:49,255 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-11-07 04:26:49,255 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-11-07 04:26:49,255 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-11-07 04:26:49,255 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:26:49,255 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:26:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-11-07 04:26:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-11-07 04:26:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-11-07 04:26:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-11-07 04:26:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-11-07 04:26:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-11-07 04:26:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-11-07 04:26:49,257 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-11-07 04:26:49,257 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:26:49,257 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:26:49,257 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:26:49,257 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:26:49,257 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:26:49,258 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:26:49,258 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:26:49,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:26:49,258 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:26:49,258 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:26:49,258 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:26:49,258 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:26:49,259 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:26:49,259 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:26:49,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-11-07 04:26:49,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-11-07 04:26:49,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:26:49,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-11-07 04:26:49,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-11-07 04:26:49,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:26:49,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-11-07 04:26:49,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-11-07 04:26:49,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:26:49,260 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:26:49,260 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:26:49,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:26:49,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:26:49,261 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:26:49,261 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:26:49,261 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:26:49,261 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:26:49,261 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:26:49,262 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:26:49,262 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:26:49,262 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:26:49,262 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:26:49,265 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:26:49,265 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:26:49,265 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:26:49,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:26:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:26:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:26:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:26:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:26:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:26:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:26:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:26:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:26:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:26:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:26:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:26:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:26:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:26:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:26:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:26:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:26:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:26:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:26:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:26:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:26:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:26:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:26:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:26:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:26:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:26:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:26:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:26:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:26:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:26:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:26:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:26:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:26:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:26:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:26:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:26:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:26:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:26:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:26:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:26:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:26:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:26:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:26:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:26:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:26:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:26:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:26:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:26:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:26:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:26:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:26:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:26:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:26:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:26:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:26:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:26:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:26:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:26:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:26:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:26:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:26:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:26:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:26:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:26:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:26:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:26:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:26:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:26:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:26:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:26:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:26:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:26:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:26:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:26:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:26:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:26:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:26:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:26:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:26:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:26:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:26:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:26:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:26:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:26:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:26:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:26:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:26:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:26:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:26:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:26:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-11-07 04:26:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-11-07 04:26:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:26:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:26:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:26:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:26:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-11-07 04:26:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-11-07 04:26:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-11-07 04:26:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-11-07 04:26:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-11-07 04:26:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-11-07 04:26:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-11-07 04:26:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-11-07 04:26:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:26:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:26:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:26:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:26:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:26:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:26:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:26:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:26:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:26:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:26:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:26:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:26:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:26:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:26:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:26:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:26:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:26:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-11-07 04:26:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-11-07 04:26:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-11-07 04:26:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-11-07 04:26:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-11-07 04:26:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-11-07 04:26:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-11-07 04:26:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-11-07 04:26:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-11-07 04:26:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-11-07 04:26:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-11-07 04:26:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-11-07 04:26:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-11-07 04:26:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-11-07 04:26:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:26:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:26:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:26:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:26:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:26:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:26:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:26:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:26:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-11-07 04:26:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-11-07 04:26:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-11-07 04:26:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-11-07 04:26:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-11-07 04:26:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-11-07 04:26:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:26:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:26:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:26:54,428 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:26:54,428 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:26:54,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:26:54 BoogieIcfgContainer [2019-11-07 04:26:54,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:26:54,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:26:54,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:26:54,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:26:54,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:26:47" (1/3) ... [2019-11-07 04:26:54,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6702c828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:26:54, skipping insertion in model container [2019-11-07 04:26:54,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:48" (2/3) ... [2019-11-07 04:26:54,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6702c828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:26:54, skipping insertion in model container [2019-11-07 04:26:54,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:26:54" (3/3) ... [2019-11-07 04:26:54,440 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_productSimulator.cil.c [2019-11-07 04:26:54,451 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:26:54,461 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:26:54,473 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:26:54,516 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:26:54,516 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:26:54,517 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:26:54,517 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:26:54,517 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:26:54,517 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:26:54,517 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:26:54,517 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:26:54,557 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states. [2019-11-07 04:26:54,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-11-07 04:26:54,576 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:54,577 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:54,579 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:54,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:54,585 INFO L82 PathProgramCache]: Analyzing trace with hash 304259202, now seen corresponding path program 1 times [2019-11-07 04:26:54,596 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:54,596 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143997880] [2019-11-07 04:26:54,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:55,346 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-11-07 04:26:55,346 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143997880] [2019-11-07 04:26:55,347 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:55,348 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 04:26:55,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967136306] [2019-11-07 04:26:55,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 04:26:55,356 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:55,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 04:26:55,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:26:55,373 INFO L87 Difference]: Start difference. First operand 610 states. Second operand 6 states. [2019-11-07 04:26:55,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:55,639 INFO L93 Difference]: Finished difference Result 1142 states and 1432 transitions. [2019-11-07 04:26:55,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:26:55,641 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2019-11-07 04:26:55,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:55,673 INFO L225 Difference]: With dead ends: 1142 [2019-11-07 04:26:55,673 INFO L226 Difference]: Without dead ends: 583 [2019-11-07 04:26:55,681 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:26:55,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-11-07 04:26:55,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 583. [2019-11-07 04:26:55,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2019-11-07 04:26:55,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 718 transitions. [2019-11-07 04:26:55,872 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 718 transitions. Word has length 140 [2019-11-07 04:26:55,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:55,876 INFO L462 AbstractCegarLoop]: Abstraction has 583 states and 718 transitions. [2019-11-07 04:26:55,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 04:26:55,876 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 718 transitions. [2019-11-07 04:26:55,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-11-07 04:26:55,889 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:55,889 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:55,889 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:55,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:55,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1833776125, now seen corresponding path program 1 times [2019-11-07 04:26:55,890 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:55,890 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760050941] [2019-11-07 04:26:55,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:56,177 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-11-07 04:26:56,178 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760050941] [2019-11-07 04:26:56,178 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:56,178 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 04:26:56,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955480900] [2019-11-07 04:26:56,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 04:26:56,194 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:56,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 04:26:56,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:26:56,198 INFO L87 Difference]: Start difference. First operand 583 states and 718 transitions. Second operand 4 states. [2019-11-07 04:26:57,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:57,061 INFO L93 Difference]: Finished difference Result 1132 states and 1424 transitions. [2019-11-07 04:26:57,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 04:26:57,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 146 [2019-11-07 04:26:57,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:57,067 INFO L225 Difference]: With dead ends: 1132 [2019-11-07 04:26:57,067 INFO L226 Difference]: Without dead ends: 581 [2019-11-07 04:26:57,070 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:26:57,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-11-07 04:26:57,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 581. [2019-11-07 04:26:57,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2019-11-07 04:26:57,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 707 transitions. [2019-11-07 04:26:57,115 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 707 transitions. Word has length 146 [2019-11-07 04:26:57,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:57,116 INFO L462 AbstractCegarLoop]: Abstraction has 581 states and 707 transitions. [2019-11-07 04:26:57,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 04:26:57,116 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 707 transitions. [2019-11-07 04:26:57,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-11-07 04:26:57,120 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:57,120 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:57,120 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:57,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:57,121 INFO L82 PathProgramCache]: Analyzing trace with hash -945275553, now seen corresponding path program 1 times [2019-11-07 04:26:57,121 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:57,121 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304736298] [2019-11-07 04:26:57,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:57,388 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-11-07 04:26:57,389 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304736298] [2019-11-07 04:26:57,390 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:57,390 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:57,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430726095] [2019-11-07 04:26:57,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:57,399 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:57,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:57,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:57,400 INFO L87 Difference]: Start difference. First operand 581 states and 707 transitions. Second operand 3 states. [2019-11-07 04:26:57,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:57,530 INFO L93 Difference]: Finished difference Result 1125 states and 1383 transitions. [2019-11-07 04:26:57,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:57,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-11-07 04:26:57,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:57,535 INFO L225 Difference]: With dead ends: 1125 [2019-11-07 04:26:57,535 INFO L226 Difference]: Without dead ends: 580 [2019-11-07 04:26:57,537 INFO L630 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 [2019-11-07 04:26:57,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2019-11-07 04:26:57,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2019-11-07 04:26:57,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-11-07 04:26:57,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 703 transitions. [2019-11-07 04:26:57,577 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 703 transitions. Word has length 159 [2019-11-07 04:26:57,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:57,578 INFO L462 AbstractCegarLoop]: Abstraction has 580 states and 703 transitions. [2019-11-07 04:26:57,578 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:57,578 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 703 transitions. [2019-11-07 04:26:57,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-11-07 04:26:57,581 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:57,582 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:57,582 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:57,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:57,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1153514979, now seen corresponding path program 1 times [2019-11-07 04:26:57,583 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:57,583 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394337968] [2019-11-07 04:26:57,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:57,722 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-11-07 04:26:57,722 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394337968] [2019-11-07 04:26:57,722 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:57,723 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 04:26:57,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504048267] [2019-11-07 04:26:57,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 04:26:57,724 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:57,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 04:26:57,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:26:57,724 INFO L87 Difference]: Start difference. First operand 580 states and 703 transitions. Second operand 4 states. [2019-11-07 04:26:58,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:58,513 INFO L93 Difference]: Finished difference Result 1097 states and 1330 transitions. [2019-11-07 04:26:58,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 04:26:58,514 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2019-11-07 04:26:58,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:58,518 INFO L225 Difference]: With dead ends: 1097 [2019-11-07 04:26:58,518 INFO L226 Difference]: Without dead ends: 577 [2019-11-07 04:26:58,520 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:26:58,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2019-11-07 04:26:58,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2019-11-07 04:26:58,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-11-07 04:26:58,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 686 transitions. [2019-11-07 04:26:58,554 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 686 transitions. Word has length 160 [2019-11-07 04:26:58,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:58,554 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 686 transitions. [2019-11-07 04:26:58,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 04:26:58,555 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 686 transitions. [2019-11-07 04:26:58,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-11-07 04:26:58,558 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:58,559 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:58,559 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:58,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:58,559 INFO L82 PathProgramCache]: Analyzing trace with hash -69801363, now seen corresponding path program 1 times [2019-11-07 04:26:58,559 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:58,560 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944012642] [2019-11-07 04:26:58,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:58,735 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-11-07 04:26:58,736 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944012642] [2019-11-07 04:26:58,736 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:58,736 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:58,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405766312] [2019-11-07 04:26:58,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:58,737 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:58,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:58,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:58,738 INFO L87 Difference]: Start difference. First operand 577 states and 686 transitions. Second operand 3 states. [2019-11-07 04:26:58,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:58,779 INFO L93 Difference]: Finished difference Result 909 states and 1074 transitions. [2019-11-07 04:26:58,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:58,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-11-07 04:26:58,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:58,785 INFO L225 Difference]: With dead ends: 909 [2019-11-07 04:26:58,785 INFO L226 Difference]: Without dead ends: 579 [2019-11-07 04:26:58,787 INFO L630 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 [2019-11-07 04:26:58,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2019-11-07 04:26:58,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2019-11-07 04:26:58,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2019-11-07 04:26:58,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 688 transitions. [2019-11-07 04:26:58,823 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 688 transitions. Word has length 181 [2019-11-07 04:26:58,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:58,824 INFO L462 AbstractCegarLoop]: Abstraction has 579 states and 688 transitions. [2019-11-07 04:26:58,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:58,824 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 688 transitions. [2019-11-07 04:26:58,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-11-07 04:26:58,827 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:58,827 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:58,828 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:58,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:58,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1101949612, now seen corresponding path program 1 times [2019-11-07 04:26:58,828 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:58,829 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192128287] [2019-11-07 04:26:58,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:59,006 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-11-07 04:26:59,007 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192128287] [2019-11-07 04:26:59,007 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:59,007 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:59,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715912471] [2019-11-07 04:26:59,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:59,008 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:59,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:59,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:59,009 INFO L87 Difference]: Start difference. First operand 579 states and 688 transitions. Second operand 3 states. [2019-11-07 04:26:59,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:59,050 INFO L93 Difference]: Finished difference Result 1106 states and 1345 transitions. [2019-11-07 04:26:59,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:59,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2019-11-07 04:26:59,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:59,055 INFO L225 Difference]: With dead ends: 1106 [2019-11-07 04:26:59,056 INFO L226 Difference]: Without dead ends: 633 [2019-11-07 04:26:59,058 INFO L630 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 [2019-11-07 04:26:59,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2019-11-07 04:26:59,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 632. [2019-11-07 04:26:59,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2019-11-07 04:26:59,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 775 transitions. [2019-11-07 04:26:59,091 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 775 transitions. Word has length 188 [2019-11-07 04:26:59,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:59,092 INFO L462 AbstractCegarLoop]: Abstraction has 632 states and 775 transitions. [2019-11-07 04:26:59,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:59,092 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 775 transitions. [2019-11-07 04:26:59,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-11-07 04:26:59,095 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:59,095 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:59,096 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:59,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:59,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1968875577, now seen corresponding path program 1 times [2019-11-07 04:26:59,096 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:59,096 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584945742] [2019-11-07 04:26:59,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-11-07 04:26:59,388 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584945742] [2019-11-07 04:26:59,389 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:59,389 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:59,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277825964] [2019-11-07 04:26:59,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:59,390 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:59,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:59,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:59,391 INFO L87 Difference]: Start difference. First operand 632 states and 775 transitions. Second operand 3 states. [2019-11-07 04:26:59,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:59,439 INFO L93 Difference]: Finished difference Result 1042 states and 1270 transitions. [2019-11-07 04:26:59,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:59,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-11-07 04:26:59,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:59,445 INFO L225 Difference]: With dead ends: 1042 [2019-11-07 04:26:59,446 INFO L226 Difference]: Without dead ends: 724 [2019-11-07 04:26:59,448 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:59,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2019-11-07 04:26:59,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 723. [2019-11-07 04:26:59,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2019-11-07 04:26:59,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 880 transitions. [2019-11-07 04:26:59,493 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 880 transitions. Word has length 189 [2019-11-07 04:26:59,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:59,496 INFO L462 AbstractCegarLoop]: Abstraction has 723 states and 880 transitions. [2019-11-07 04:26:59,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:59,496 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 880 transitions. [2019-11-07 04:26:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2019-11-07 04:26:59,502 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:59,503 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:59,503 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:59,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:59,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1345276914, now seen corresponding path program 1 times [2019-11-07 04:26:59,504 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:59,504 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223086064] [2019-11-07 04:26:59,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:00,039 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-11-07 04:27:00,040 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223086064] [2019-11-07 04:27:00,040 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:00,040 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-11-07 04:27:00,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581456830] [2019-11-07 04:27:00,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-07 04:27:00,042 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:00,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-07 04:27:00,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-11-07 04:27:00,043 INFO L87 Difference]: Start difference. First operand 723 states and 880 transitions. Second operand 16 states. [2019-11-07 04:27:07,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:07,652 INFO L93 Difference]: Finished difference Result 1722 states and 2087 transitions. [2019-11-07 04:27:07,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-07 04:27:07,652 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 304 [2019-11-07 04:27:07,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:07,663 INFO L225 Difference]: With dead ends: 1722 [2019-11-07 04:27:07,663 INFO L226 Difference]: Without dead ends: 1347 [2019-11-07 04:27:07,666 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2019-11-07 04:27:07,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2019-11-07 04:27:07,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1336. [2019-11-07 04:27:07,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2019-11-07 04:27:07,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1638 transitions. [2019-11-07 04:27:07,764 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1638 transitions. Word has length 304 [2019-11-07 04:27:07,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:07,768 INFO L462 AbstractCegarLoop]: Abstraction has 1336 states and 1638 transitions. [2019-11-07 04:27:07,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-07 04:27:07,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1638 transitions. [2019-11-07 04:27:07,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2019-11-07 04:27:07,783 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:07,784 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:07,784 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:07,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:07,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1695799518, now seen corresponding path program 1 times [2019-11-07 04:27:07,785 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:07,785 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544465219] [2019-11-07 04:27:07,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:08,150 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-11-07 04:27:08,151 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544465219] [2019-11-07 04:27:08,155 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:08,155 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:08,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549074497] [2019-11-07 04:27:08,157 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:08,158 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:08,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:08,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:08,158 INFO L87 Difference]: Start difference. First operand 1336 states and 1638 transitions. Second operand 3 states. [2019-11-07 04:27:08,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:08,302 INFO L93 Difference]: Finished difference Result 3803 states and 4784 transitions. [2019-11-07 04:27:08,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:08,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 315 [2019-11-07 04:27:08,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:08,321 INFO L225 Difference]: With dead ends: 3803 [2019-11-07 04:27:08,321 INFO L226 Difference]: Without dead ends: 2508 [2019-11-07 04:27:08,327 INFO L630 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 [2019-11-07 04:27:08,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2019-11-07 04:27:08,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2505. [2019-11-07 04:27:08,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2505 states. [2019-11-07 04:27:08,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3120 transitions. [2019-11-07 04:27:08,494 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3120 transitions. Word has length 315 [2019-11-07 04:27:08,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:08,495 INFO L462 AbstractCegarLoop]: Abstraction has 2505 states and 3120 transitions. [2019-11-07 04:27:08,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:08,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3120 transitions. [2019-11-07 04:27:08,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2019-11-07 04:27:08,511 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:08,511 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:08,512 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:08,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:08,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1544339518, now seen corresponding path program 1 times [2019-11-07 04:27:08,513 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:08,513 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971868656] [2019-11-07 04:27:08,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:08,750 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-11-07 04:27:08,750 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971868656] [2019-11-07 04:27:08,751 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:08,751 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:08,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002276782] [2019-11-07 04:27:08,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:08,753 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:08,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:08,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:08,753 INFO L87 Difference]: Start difference. First operand 2505 states and 3120 transitions. Second operand 3 states. [2019-11-07 04:27:09,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:09,034 INFO L93 Difference]: Finished difference Result 6057 states and 7742 transitions. [2019-11-07 04:27:09,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:09,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 317 [2019-11-07 04:27:09,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:09,057 INFO L225 Difference]: With dead ends: 6057 [2019-11-07 04:27:09,057 INFO L226 Difference]: Without dead ends: 3596 [2019-11-07 04:27:09,070 INFO L630 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 [2019-11-07 04:27:09,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3596 states. [2019-11-07 04:27:09,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3596 to 3593. [2019-11-07 04:27:09,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3593 states. [2019-11-07 04:27:09,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 4477 transitions. [2019-11-07 04:27:09,362 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 4477 transitions. Word has length 317 [2019-11-07 04:27:09,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:09,363 INFO L462 AbstractCegarLoop]: Abstraction has 3593 states and 4477 transitions. [2019-11-07 04:27:09,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 4477 transitions. [2019-11-07 04:27:09,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2019-11-07 04:27:09,383 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:09,383 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:09,384 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:09,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:09,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1981239029, now seen corresponding path program 1 times [2019-11-07 04:27:09,384 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:09,385 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684441905] [2019-11-07 04:27:09,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:09,840 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-11-07 04:27:09,840 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684441905] [2019-11-07 04:27:09,841 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:09,841 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 04:27:09,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900396451] [2019-11-07 04:27:09,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 04:27:09,842 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:09,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 04:27:09,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:27:09,842 INFO L87 Difference]: Start difference. First operand 3593 states and 4477 transitions. Second operand 11 states. [2019-11-07 04:27:15,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:15,057 INFO L93 Difference]: Finished difference Result 6939 states and 8589 transitions. [2019-11-07 04:27:15,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 04:27:15,058 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 300 [2019-11-07 04:27:15,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:15,094 INFO L225 Difference]: With dead ends: 6939 [2019-11-07 04:27:15,094 INFO L226 Difference]: Without dead ends: 5100 [2019-11-07 04:27:15,103 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2019-11-07 04:27:15,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5100 states. [2019-11-07 04:27:15,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5100 to 5063. [2019-11-07 04:27:15,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5063 states. [2019-11-07 04:27:15,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5063 states to 5063 states and 6312 transitions. [2019-11-07 04:27:15,443 INFO L78 Accepts]: Start accepts. Automaton has 5063 states and 6312 transitions. Word has length 300 [2019-11-07 04:27:15,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:15,445 INFO L462 AbstractCegarLoop]: Abstraction has 5063 states and 6312 transitions. [2019-11-07 04:27:15,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 04:27:15,445 INFO L276 IsEmpty]: Start isEmpty. Operand 5063 states and 6312 transitions. [2019-11-07 04:27:15,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2019-11-07 04:27:15,463 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:15,464 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:15,464 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:15,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:15,464 INFO L82 PathProgramCache]: Analyzing trace with hash -397464041, now seen corresponding path program 1 times [2019-11-07 04:27:15,465 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:15,465 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805799590] [2019-11-07 04:27:15,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-11-07 04:27:15,880 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805799590] [2019-11-07 04:27:15,880 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:15,880 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:15,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877061653] [2019-11-07 04:27:15,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:15,882 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:15,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:15,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:15,882 INFO L87 Difference]: Start difference. First operand 5063 states and 6312 transitions. Second operand 3 states. [2019-11-07 04:27:16,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:16,084 INFO L93 Difference]: Finished difference Result 10504 states and 13364 transitions. [2019-11-07 04:27:16,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:16,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2019-11-07 04:27:16,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:16,119 INFO L225 Difference]: With dead ends: 10504 [2019-11-07 04:27:16,119 INFO L226 Difference]: Without dead ends: 5675 [2019-11-07 04:27:16,137 INFO L630 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 [2019-11-07 04:27:16,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5675 states. [2019-11-07 04:27:16,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5675 to 5669. [2019-11-07 04:27:16,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5669 states. [2019-11-07 04:27:16,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7290 transitions. [2019-11-07 04:27:16,460 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7290 transitions. Word has length 325 [2019-11-07 04:27:16,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:16,460 INFO L462 AbstractCegarLoop]: Abstraction has 5669 states and 7290 transitions. [2019-11-07 04:27:16,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:16,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7290 transitions. [2019-11-07 04:27:16,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2019-11-07 04:27:16,485 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:16,486 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:16,486 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:16,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:16,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1163070922, now seen corresponding path program 1 times [2019-11-07 04:27:16,487 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:16,487 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284818664] [2019-11-07 04:27:16,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:16,802 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-11-07 04:27:16,802 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284818664] [2019-11-07 04:27:16,802 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:16,803 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:16,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154990801] [2019-11-07 04:27:16,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:16,804 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:16,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:16,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:16,805 INFO L87 Difference]: Start difference. First operand 5669 states and 7290 transitions. Second operand 3 states. [2019-11-07 04:27:17,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:17,038 INFO L93 Difference]: Finished difference Result 12274 states and 16238 transitions. [2019-11-07 04:27:17,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:17,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 326 [2019-11-07 04:27:17,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:17,087 INFO L225 Difference]: With dead ends: 12274 [2019-11-07 04:27:17,087 INFO L226 Difference]: Without dead ends: 6839 [2019-11-07 04:27:17,107 INFO L630 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 [2019-11-07 04:27:17,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2019-11-07 04:27:17,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 6833. [2019-11-07 04:27:17,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6833 states. [2019-11-07 04:27:17,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6833 states to 6833 states and 9174 transitions. [2019-11-07 04:27:17,478 INFO L78 Accepts]: Start accepts. Automaton has 6833 states and 9174 transitions. Word has length 326 [2019-11-07 04:27:17,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:17,479 INFO L462 AbstractCegarLoop]: Abstraction has 6833 states and 9174 transitions. [2019-11-07 04:27:17,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:17,479 INFO L276 IsEmpty]: Start isEmpty. Operand 6833 states and 9174 transitions. [2019-11-07 04:27:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2019-11-07 04:27:17,504 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:17,504 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:17,505 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:17,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:17,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1024689187, now seen corresponding path program 1 times [2019-11-07 04:27:17,505 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:17,506 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247004711] [2019-11-07 04:27:17,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:17,739 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-11-07 04:27:17,739 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247004711] [2019-11-07 04:27:17,739 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:17,740 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:17,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455052390] [2019-11-07 04:27:17,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:17,741 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:17,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:17,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:17,742 INFO L87 Difference]: Start difference. First operand 6833 states and 9174 transitions. Second operand 3 states. [2019-11-07 04:27:18,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:18,249 INFO L93 Difference]: Finished difference Result 15670 states and 21746 transitions. [2019-11-07 04:27:18,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:18,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 327 [2019-11-07 04:27:18,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:18,302 INFO L225 Difference]: With dead ends: 15670 [2019-11-07 04:27:18,302 INFO L226 Difference]: Without dead ends: 9071 [2019-11-07 04:27:18,327 INFO L630 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 [2019-11-07 04:27:18,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9071 states. [2019-11-07 04:27:18,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9071 to 9065. [2019-11-07 04:27:18,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9065 states. [2019-11-07 04:27:18,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9065 states to 9065 states and 12774 transitions. [2019-11-07 04:27:18,780 INFO L78 Accepts]: Start accepts. Automaton has 9065 states and 12774 transitions. Word has length 327 [2019-11-07 04:27:18,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:18,781 INFO L462 AbstractCegarLoop]: Abstraction has 9065 states and 12774 transitions. [2019-11-07 04:27:18,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:18,781 INFO L276 IsEmpty]: Start isEmpty. Operand 9065 states and 12774 transitions. [2019-11-07 04:27:18,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2019-11-07 04:27:18,816 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:18,819 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:18,819 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:18,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:18,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1957005424, now seen corresponding path program 1 times [2019-11-07 04:27:18,820 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:18,820 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016231288] [2019-11-07 04:27:18,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-11-07 04:27:19,037 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016231288] [2019-11-07 04:27:19,038 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:19,038 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:19,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574015854] [2019-11-07 04:27:19,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:19,039 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:19,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:19,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:19,041 INFO L87 Difference]: Start difference. First operand 9065 states and 12774 transitions. Second operand 3 states. [2019-11-07 04:27:19,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:19,526 INFO L93 Difference]: Finished difference Result 22174 states and 32258 transitions. [2019-11-07 04:27:19,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:19,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 328 [2019-11-07 04:27:19,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted.