/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_spec27_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:19:16,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:19:16,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:19:16,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:19:16,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:19:16,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:19:16,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:19:16,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:19:16,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:19:16,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:19:16,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:19:16,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:19:16,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:19:16,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:19:16,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:19:16,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:19:16,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:19:16,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:19:16,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:19:16,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:19:16,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:19:16,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:19:16,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:19:16,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:19:16,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:19:16,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:19:16,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:19:16,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:19:16,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:19:16,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:19:16,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:19:16,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:19:16,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:19:16,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:19:16,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:19:16,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:19:16,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:19:16,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:19:16,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:19:16,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:19:16,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:19:16,760 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 04:19:16,774 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:19:16,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:19:16,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:19:16,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:19:16,778 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:19:16,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:19:16,778 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:19:16,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:19:16,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:19:16,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:19:16,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:19:16,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:19:16,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:19:16,779 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:19:16,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:19:16,780 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:19:16,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:19:16,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:19:16,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:19:16,780 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:19:16,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:19:16,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:19:16,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:19:16,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:19:16,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:19:16,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:19:16,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:19:16,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:19:16,784 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 04:19:17,075 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:19:17,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:19:17,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:19:17,094 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:19:17,095 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:19:17,096 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product30.cil.c [2019-11-07 04:19:17,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49425ab9e/0ef805b138904e7998dbe8cdde447354/FLAG3eb69b41d [2019-11-07 04:19:17,791 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:19:17,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product30.cil.c [2019-11-07 04:19:17,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49425ab9e/0ef805b138904e7998dbe8cdde447354/FLAG3eb69b41d [2019-11-07 04:19:17,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49425ab9e/0ef805b138904e7998dbe8cdde447354 [2019-11-07 04:19:18,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:19:18,027 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:19:18,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:19:18,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:19:18,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:19:18,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:19:18" (1/1) ... [2019-11-07 04:19:18,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3265302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:18, skipping insertion in model container [2019-11-07 04:19:18,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:19:18" (1/1) ... [2019-11-07 04:19:18,071 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:19:18,142 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:19:18,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:19:18,994 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:19:19,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:19:19,241 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:19:19,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:19 WrapperNode [2019-11-07 04:19:19,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:19:19,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:19:19,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:19:19,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:19:19,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:19" (1/1) ... [2019-11-07 04:19:19,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:19" (1/1) ... [2019-11-07 04:19:19,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:19" (1/1) ... [2019-11-07 04:19:19,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:19" (1/1) ... [2019-11-07 04:19:19,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:19" (1/1) ... [2019-11-07 04:19:19,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:19" (1/1) ... [2019-11-07 04:19:19,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:19" (1/1) ... [2019-11-07 04:19:19,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:19:19,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:19:19,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:19:19,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:19:19,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:19" (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 04:19:19,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:19:19,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:19:19,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:19:19,514 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:19:19,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:19:19,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:19:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:19:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:19:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:19:19,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:19:19,517 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:19:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:19:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:19:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:19:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:19:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:19:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:19:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:19:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:19:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:19:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:19:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:19:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:19:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:19:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:19:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:19:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:19:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:19:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:19:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:19:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:19:19,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:19:19,527 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:19:19,527 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:19:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:19:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:19:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:19:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:19:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-11-07 04:19:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:19:19,529 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:19:19,529 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:19:19,529 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:19:19,529 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:19:19,529 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:19:19,529 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:19:19,529 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 04:19:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:19:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:19:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:19:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:19:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:19:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:19:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:19:19,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:19:19,531 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:19:19,531 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:19:19,531 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:19:19,531 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:19:19,532 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:19:19,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:19:19,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:19:19,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:19:19,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:19:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:19:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:19:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:19:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:19:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:19:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:19:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:19:19,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:19:19,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:19:19,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:19:19,535 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:19:19,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:19:19,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:19:19,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:19:19,536 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:19:19,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:19:19,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:19:19,537 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:19:19,537 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-11-07 04:19:19,537 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 04:19:19,537 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:19:19,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:19:19,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:19:19,538 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:19:19,538 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:19:19,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:19:19,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:19:19,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:19:19,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:19:19,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:19:19,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:19:19,539 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:19:19,539 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:19:19,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:19:19,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:19:19,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:19:19,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:19:19,540 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:19:19,540 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:19:19,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:19:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:19:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:19:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:19:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:19:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:19:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:19:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:19:19,542 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:19:19,542 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:19:19,542 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:19:19,542 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:19:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:19:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:19:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:19:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:19:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:19:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:19:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:19:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:19:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:19:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:19:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:19:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:19:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:19:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:19:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:19:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:19:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:19:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:19:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:19:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:19:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:19:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:19:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:19:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:19:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:19:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:19:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:19:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:19:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:19:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:19:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:19:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:19:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:19:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:19:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:19:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:19:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:19:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:19:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:19:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:19:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:19:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:19:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:19:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:19:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:19:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:19:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:19:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:19:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:19:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:19:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:19:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:19:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-11-07 04:19:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:19:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:19:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:19:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:19:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:19:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:19:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:19:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:19:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:19:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:19:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:19:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:19:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:19:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:19:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:19:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:19:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:19:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:19:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:19:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:19:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:19:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:19:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:19:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:19:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:19:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:19:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:19:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:19:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:19:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:19:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:19:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:19:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:19:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 04:19:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:19:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:19:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:19:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:19:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:19:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:19:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:19:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:19:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:19:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:19:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-11-07 04:19:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 04:19:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:19:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:19:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:19:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:19:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:19:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:19:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:19:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:19:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:19:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:19:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:19:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:19:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:19:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:19:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:19:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:19:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:19:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:19:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:19:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:19:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:19:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:19:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:19:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:19:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:19:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:19:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:19:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:19:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:19:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:19:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:19:23,963 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:19:23,964 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:19:23,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:19:23 BoogieIcfgContainer [2019-11-07 04:19:23,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:19:23,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:19:23,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:19:23,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:19:23,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:19:18" (1/3) ... [2019-11-07 04:19:23,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2657c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:19:23, skipping insertion in model container [2019-11-07 04:19:23,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:19:19" (2/3) ... [2019-11-07 04:19:23,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2657c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:19:23, skipping insertion in model container [2019-11-07 04:19:23,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:19:23" (3/3) ... [2019-11-07 04:19:23,974 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product30.cil.c [2019-11-07 04:19:23,984 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:19:23,993 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:19:24,005 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:19:24,035 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:19:24,035 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:19:24,035 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:19:24,035 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:19:24,035 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:19:24,036 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:19:24,036 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:19:24,036 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:19:24,065 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states. [2019-11-07 04:19:24,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-11-07 04:19:24,085 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:24,088 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:19:24,090 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:24,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:24,096 INFO L82 PathProgramCache]: Analyzing trace with hash 929972841, now seen corresponding path program 1 times [2019-11-07 04:19:24,107 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:24,107 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130580880] [2019-11-07 04:19:24,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:24,866 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:19:24,867 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130580880] [2019-11-07 04:19:24,867 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:24,868 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:19:24,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829699497] [2019-11-07 04:19:24,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:19:24,874 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:24,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:19:24,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:19:24,891 INFO L87 Difference]: Start difference. First operand 401 states. Second operand 2 states. [2019-11-07 04:19:24,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:24,956 INFO L93 Difference]: Finished difference Result 572 states and 681 transitions. [2019-11-07 04:19:24,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:19:24,958 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 167 [2019-11-07 04:19:24,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:24,979 INFO L225 Difference]: With dead ends: 572 [2019-11-07 04:19:24,979 INFO L226 Difference]: Without dead ends: 361 [2019-11-07 04:19:24,984 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:19:25,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-11-07 04:19:25,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2019-11-07 04:19:25,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-11-07 04:19:25,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 426 transitions. [2019-11-07 04:19:25,066 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 426 transitions. Word has length 167 [2019-11-07 04:19:25,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:25,068 INFO L462 AbstractCegarLoop]: Abstraction has 361 states and 426 transitions. [2019-11-07 04:19:25,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:19:25,068 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 426 transitions. [2019-11-07 04:19:25,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-11-07 04:19:25,075 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:25,076 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:19:25,076 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:25,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:25,077 INFO L82 PathProgramCache]: Analyzing trace with hash 16161701, now seen corresponding path program 1 times [2019-11-07 04:19:25,077 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:25,077 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657062563] [2019-11-07 04:19:25,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:19:25,349 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657062563] [2019-11-07 04:19:25,350 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:25,350 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:19:25,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174809720] [2019-11-07 04:19:25,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:19:25,352 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:25,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:19:25,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:19:25,353 INFO L87 Difference]: Start difference. First operand 361 states and 426 transitions. Second operand 3 states. [2019-11-07 04:19:25,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:25,404 INFO L93 Difference]: Finished difference Result 557 states and 647 transitions. [2019-11-07 04:19:25,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:19:25,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-11-07 04:19:25,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:25,412 INFO L225 Difference]: With dead ends: 557 [2019-11-07 04:19:25,412 INFO L226 Difference]: Without dead ends: 363 [2019-11-07 04:19:25,418 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 04:19:25,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2019-11-07 04:19:25,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2019-11-07 04:19:25,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-11-07 04:19:25,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2019-11-07 04:19:25,459 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 168 [2019-11-07 04:19:25,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:25,459 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2019-11-07 04:19:25,459 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:19:25,460 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2019-11-07 04:19:25,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-11-07 04:19:25,468 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:25,468 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:19:25,469 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:25,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:25,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1148884785, now seen corresponding path program 1 times [2019-11-07 04:19:25,470 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:25,470 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579622040] [2019-11-07 04:19:25,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:25,800 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:19:25,801 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579622040] [2019-11-07 04:19:25,801 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:25,801 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:19:25,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029916181] [2019-11-07 04:19:25,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:19:25,804 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:25,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:19:25,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:19:25,805 INFO L87 Difference]: Start difference. First operand 363 states and 428 transitions. Second operand 3 states. [2019-11-07 04:19:25,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:25,865 INFO L93 Difference]: Finished difference Result 708 states and 863 transitions. [2019-11-07 04:19:25,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:19:25,866 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-11-07 04:19:25,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:25,870 INFO L225 Difference]: With dead ends: 708 [2019-11-07 04:19:25,870 INFO L226 Difference]: Without dead ends: 403 [2019-11-07 04:19:25,873 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 04:19:25,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-11-07 04:19:25,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 402. [2019-11-07 04:19:25,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2019-11-07 04:19:25,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 496 transitions. [2019-11-07 04:19:25,903 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 496 transitions. Word has length 177 [2019-11-07 04:19:25,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:25,904 INFO L462 AbstractCegarLoop]: Abstraction has 402 states and 496 transitions. [2019-11-07 04:19:25,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:19:25,904 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 496 transitions. [2019-11-07 04:19:25,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-11-07 04:19:25,908 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:25,909 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:19:25,909 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:25,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:25,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1923546868, now seen corresponding path program 1 times [2019-11-07 04:19:25,910 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:25,910 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876392933] [2019-11-07 04:19:25,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:26,087 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:19:26,088 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876392933] [2019-11-07 04:19:26,088 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:26,088 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:19:26,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119978162] [2019-11-07 04:19:26,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:19:26,090 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:26,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:19:26,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:19:26,091 INFO L87 Difference]: Start difference. First operand 402 states and 496 transitions. Second operand 3 states. [2019-11-07 04:19:26,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:26,131 INFO L93 Difference]: Finished difference Result 822 states and 1062 transitions. [2019-11-07 04:19:26,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:19:26,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-11-07 04:19:26,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:26,136 INFO L225 Difference]: With dead ends: 822 [2019-11-07 04:19:26,137 INFO L226 Difference]: Without dead ends: 478 [2019-11-07 04:19:26,139 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 04:19:26,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2019-11-07 04:19:26,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 477. [2019-11-07 04:19:26,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2019-11-07 04:19:26,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 626 transitions. [2019-11-07 04:19:26,172 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 626 transitions. Word has length 178 [2019-11-07 04:19:26,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:26,172 INFO L462 AbstractCegarLoop]: Abstraction has 477 states and 626 transitions. [2019-11-07 04:19:26,173 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:19:26,173 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 626 transitions. [2019-11-07 04:19:26,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-11-07 04:19:26,178 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:26,178 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:19:26,179 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:26,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:26,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1874145187, now seen corresponding path program 1 times [2019-11-07 04:19:26,179 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:26,180 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465729816] [2019-11-07 04:19:26,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:27,015 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-07 04:19:27,015 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465729816] [2019-11-07 04:19:27,016 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:27,016 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-11-07 04:19:27,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805368584] [2019-11-07 04:19:27,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-07 04:19:27,017 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:27,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-07 04:19:27,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2019-11-07 04:19:27,018 INFO L87 Difference]: Start difference. First operand 477 states and 626 transitions. Second operand 26 states. [2019-11-07 04:19:35,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:35,656 INFO L93 Difference]: Finished difference Result 929 states and 1174 transitions. [2019-11-07 04:19:35,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-11-07 04:19:35,657 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 181 [2019-11-07 04:19:35,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:35,667 INFO L225 Difference]: With dead ends: 929 [2019-11-07 04:19:35,668 INFO L226 Difference]: Without dead ends: 735 [2019-11-07 04:19:35,670 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=1813, Unknown=0, NotChecked=0, Total=1980 [2019-11-07 04:19:35,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2019-11-07 04:19:35,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 706. [2019-11-07 04:19:35,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2019-11-07 04:19:35,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 904 transitions. [2019-11-07 04:19:35,725 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 904 transitions. Word has length 181 [2019-11-07 04:19:35,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:35,727 INFO L462 AbstractCegarLoop]: Abstraction has 706 states and 904 transitions. [2019-11-07 04:19:35,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-07 04:19:35,728 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 904 transitions. [2019-11-07 04:19:35,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-11-07 04:19:35,732 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:35,732 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:19:35,733 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:35,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:35,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1169459489, now seen corresponding path program 1 times [2019-11-07 04:19:35,733 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:35,734 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554501848] [2019-11-07 04:19:35,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:36,007 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-07 04:19:36,008 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554501848] [2019-11-07 04:19:36,009 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:36,010 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:19:36,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855244042] [2019-11-07 04:19:36,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:19:36,012 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:36,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:19:36,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:19:36,012 INFO L87 Difference]: Start difference. First operand 706 states and 904 transitions. Second operand 10 states. [2019-11-07 04:19:36,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:36,086 INFO L93 Difference]: Finished difference Result 1103 states and 1374 transitions. [2019-11-07 04:19:36,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 04:19:36,087 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 185 [2019-11-07 04:19:36,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:36,094 INFO L225 Difference]: With dead ends: 1103 [2019-11-07 04:19:36,094 INFO L226 Difference]: Without dead ends: 726 [2019-11-07 04:19:36,096 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:19:36,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2019-11-07 04:19:36,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 710. [2019-11-07 04:19:36,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 710 states. [2019-11-07 04:19:36,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 907 transitions. [2019-11-07 04:19:36,143 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 907 transitions. Word has length 185 [2019-11-07 04:19:36,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:36,145 INFO L462 AbstractCegarLoop]: Abstraction has 710 states and 907 transitions. [2019-11-07 04:19:36,145 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:19:36,145 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 907 transitions. [2019-11-07 04:19:36,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-11-07 04:19:36,150 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:36,150 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:19:36,150 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:36,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:36,151 INFO L82 PathProgramCache]: Analyzing trace with hash -438282172, now seen corresponding path program 1 times [2019-11-07 04:19:36,151 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:36,151 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024345055] [2019-11-07 04:19:36,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:37,140 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-07 04:19:37,140 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024345055] [2019-11-07 04:19:37,141 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:37,141 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-11-07 04:19:37,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008848735] [2019-11-07 04:19:37,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-11-07 04:19:37,142 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:37,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-11-07 04:19:37,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=849, Unknown=0, NotChecked=0, Total=930 [2019-11-07 04:19:37,143 INFO L87 Difference]: Start difference. First operand 710 states and 907 transitions. Second operand 31 states. [2019-11-07 04:19:49,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:49,073 INFO L93 Difference]: Finished difference Result 1579 states and 1935 transitions. [2019-11-07 04:19:49,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-11-07 04:19:49,074 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 187 [2019-11-07 04:19:49,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:49,081 INFO L225 Difference]: With dead ends: 1579 [2019-11-07 04:19:49,082 INFO L226 Difference]: Without dead ends: 1151 [2019-11-07 04:19:49,086 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=295, Invalid=3487, Unknown=0, NotChecked=0, Total=3782 [2019-11-07 04:19:49,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2019-11-07 04:19:49,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1134. [2019-11-07 04:19:49,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1134 states. [2019-11-07 04:19:49,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1404 transitions. [2019-11-07 04:19:49,162 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1404 transitions. Word has length 187 [2019-11-07 04:19:49,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:49,163 INFO L462 AbstractCegarLoop]: Abstraction has 1134 states and 1404 transitions. [2019-11-07 04:19:49,163 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-11-07 04:19:49,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1404 transitions. [2019-11-07 04:19:49,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-11-07 04:19:49,169 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:49,169 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-11-07 04:19:49,170 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:49,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:49,170 INFO L82 PathProgramCache]: Analyzing trace with hash 726206199, now seen corresponding path program 1 times [2019-11-07 04:19:49,170 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:49,170 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385043244] [2019-11-07 04:19:49,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 04:19:49,812 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385043244] [2019-11-07 04:19:49,813 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:19:49,813 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-11-07 04:19:49,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115685138] [2019-11-07 04:19:49,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-07 04:19:49,814 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:19:49,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-07 04:19:49,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-11-07 04:19:49,815 INFO L87 Difference]: Start difference. First operand 1134 states and 1404 transitions. Second operand 25 states.