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-f4eb214f-m [2019-10-13 23:12:56,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:12:56,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:12:56,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:12:56,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:12:56,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:12:56,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:12:56,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:12:56,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:12:56,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:12:56,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:12:56,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:12:56,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:12:56,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:12:56,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:12:56,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:12:56,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:12:56,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:12:56,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:12:56,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:12:56,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:12:56,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:12:56,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:12:56,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:12:56,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:12:56,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:12:56,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:12:56,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:12:56,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:12:56,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:12:56,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:12:56,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:12:56,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:12:56,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:12:56,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:12:56,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:12:56,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:12:56,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:12:56,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:12:56,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:12:56,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:12:56,982 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:12:56,998 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:12:56,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:12:56,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:12:56,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:12:57,000 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:12:57,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:12:57,000 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:12:57,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:12:57,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:12:57,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:12:57,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:12:57,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:12:57,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:12:57,001 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:12:57,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:12:57,002 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:12:57,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:12:57,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:12:57,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:12:57,003 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:12:57,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:12:57,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:57,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:12:57,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:12:57,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:12:57,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:12:57,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:12:57,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:12:57,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:12:57,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:12:57,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:12:57,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:12:57,331 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:12:57,331 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:12:57,333 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_productSimulator.cil.c [2019-10-13 23:12:57,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b8dde635/7649c551bc674894b065041dde48cd23/FLAG18324eb59 [2019-10-13 23:12:58,084 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:12:58,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_productSimulator.cil.c [2019-10-13 23:12:58,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b8dde635/7649c551bc674894b065041dde48cd23/FLAG18324eb59 [2019-10-13 23:12:58,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b8dde635/7649c551bc674894b065041dde48cd23 [2019-10-13 23:12:58,268 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:12:58,270 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:12:58,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:58,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:12:58,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:12:58,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:58" (1/1) ... [2019-10-13 23:12:58,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21079aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:58, skipping insertion in model container [2019-10-13 23:12:58,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:58" (1/1) ... [2019-10-13 23:12:58,287 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:12:58,364 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:12:59,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:59,242 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:12:59,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:59,540 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:12:59,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:59 WrapperNode [2019-10-13 23:12:59,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:59,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:12:59,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:12:59,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:12:59,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:59" (1/1) ... [2019-10-13 23:12:59,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:59" (1/1) ... [2019-10-13 23:12:59,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:59" (1/1) ... [2019-10-13 23:12:59,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:59" (1/1) ... [2019-10-13 23:12:59,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:59" (1/1) ... [2019-10-13 23:12:59,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:59" (1/1) ... [2019-10-13 23:12:59,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:59" (1/1) ... [2019-10-13 23:12:59,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:12:59,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:12:59,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:12:59,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:12:59,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:12:59,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:12:59,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:59,832 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:12:59,833 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:12:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:12:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:12:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:12:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:12:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:59,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:12:59,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:12:59,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:12:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:12:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:12:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:12:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:12:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:12:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:12:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:12:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:12:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:12:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:12:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:12:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:12:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:12:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:12:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:12:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:12:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:12:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:12:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:12:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:12:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:12:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:12:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:12:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:12:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:12:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:12:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:12:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:12:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:12:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:12:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:12:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:12:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:12:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:12:59,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:12:59,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:12:59,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:12:59,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:12:59,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:12:59,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:12:59,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:12:59,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:12:59,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:12:59,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:12:59,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:12:59,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:12:59,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:12:59,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:12:59,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:12:59,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:12:59,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:59,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:59,855 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-13 23:12:59,855 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-13 23:12:59,855 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-13 23:12:59,856 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-13 23:12:59,856 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-13 23:12:59,856 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-13 23:12:59,857 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:12:59,857 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-13 23:12:59,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-13 23:12:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:12:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:12:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:12:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:12:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-13 23:12:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-13 23:12:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-13 23:12:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-13 23:12:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-13 23:12:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-13 23:12:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:12:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:12:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-13 23:12:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-13 23:12:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-13 23:12:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-13 23:12:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-13 23:12:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-13 23:12:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-13 23:12:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-13 23:12:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:12:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:12:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:12:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:12:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:12:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:12:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:12:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:12:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:12:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:12:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:12:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:12:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:12:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:12:59,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-13 23:12:59,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-13 23:12:59,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:12:59,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-13 23:12:59,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-13 23:12:59,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:12:59,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-13 23:12:59,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-13 23:12:59,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:12:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:12:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:12:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:12:59,871 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:12:59,871 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:12:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:12:59,908 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:12:59,908 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:12:59,909 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:12:59,909 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:12:59,909 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:12:59,909 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:12:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:12:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:12:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:12:59,914 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:12:59,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:12:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:12:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:12:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:12:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:12:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:12:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:12:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:12:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:12:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:12:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:12:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:12:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:12:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:12:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:12:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:12:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:12:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:12:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:12:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:12:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:12:59,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:12:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:12:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:12:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:12:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:12:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:12:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:12:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:12:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:12:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:12:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:12:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:12:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:12:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:12:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:12:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:12:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:12:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:12:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:12:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:12:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:12:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:12:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:12:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:12:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:12:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:12:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:12:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:12:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:12:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:12:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:12:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:12:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:12:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:12:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:12:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:12:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:12:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:12:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:12:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:12:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:12:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:12:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:12:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:12:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:12:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:12:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:12:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:12:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:12:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:12:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:12:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:12:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:12:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:12:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:12:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:12:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:12:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:12:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:12:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:12:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:12:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:12:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:12:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:12:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:12:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:12:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:12:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:12:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:12:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-13 23:12:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-13 23:12:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-13 23:12:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-13 23:12:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-13 23:12:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-13 23:12:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-13 23:12:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-13 23:12:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:12:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:12:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:12:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:12:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:12:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:12:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:12:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:12:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:12:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:12:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:12:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:12:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:12:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:12:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:12:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:12:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:12:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-13 23:12:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-13 23:12:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-13 23:12:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-13 23:12:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-13 23:12:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-13 23:12:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-13 23:12:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-13 23:12:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-13 23:12:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-13 23:12:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-13 23:12:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-13 23:12:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-13 23:12:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-13 23:12:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:12:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:12:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:12:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:12:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:12:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:12:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:12:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:12:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-13 23:12:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-13 23:12:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-13 23:12:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-13 23:12:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-13 23:12:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-13 23:12:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:12:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:12:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:13:04,674 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:13:04,675 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:13:04,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:04 BoogieIcfgContainer [2019-10-13 23:13:04,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:13:04,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:13:04,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:13:04,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:13:04,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:12:58" (1/3) ... [2019-10-13 23:13:04,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f537d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:04, skipping insertion in model container [2019-10-13 23:13:04,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:59" (2/3) ... [2019-10-13 23:13:04,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f537d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:04, skipping insertion in model container [2019-10-13 23:13:04,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:04" (3/3) ... [2019-10-13 23:13:04,684 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_productSimulator.cil.c [2019-10-13 23:13:04,694 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:13:04,704 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:13:04,716 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:13:04,746 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:13:04,746 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:13:04,746 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:13:04,747 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:13:04,747 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:13:04,747 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:13:04,747 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:13:04,747 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:13:04,780 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states. [2019-10-13 23:13:04,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-13 23:13:04,800 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:04,801 INFO L380 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] [2019-10-13 23:13:04,803 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:04,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:04,809 INFO L82 PathProgramCache]: Analyzing trace with hash 304259202, now seen corresponding path program 1 times [2019-10-13 23:13:04,819 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:04,819 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260534261] [2019-10-13 23:13:04,820 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:04,820 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:04,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:05,542 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:13:05,542 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260534261] [2019-10-13 23:13:05,543 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:05,544 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:13:05,544 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920668469] [2019-10-13 23:13:05,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:13:05,551 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:05,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:13:05,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:13:05,568 INFO L87 Difference]: Start difference. First operand 610 states. Second operand 6 states. [2019-10-13 23:13:05,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:05,786 INFO L93 Difference]: Finished difference Result 1142 states and 1432 transitions. [2019-10-13 23:13:05,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:13:05,792 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2019-10-13 23:13:05,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:05,816 INFO L225 Difference]: With dead ends: 1142 [2019-10-13 23:13:05,816 INFO L226 Difference]: Without dead ends: 583 [2019-10-13 23:13:05,826 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:13:05,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-10-13 23:13:05,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 583. [2019-10-13 23:13:05,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2019-10-13 23:13:05,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 718 transitions. [2019-10-13 23:13:05,945 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 718 transitions. Word has length 140 [2019-10-13 23:13:05,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:05,947 INFO L462 AbstractCegarLoop]: Abstraction has 583 states and 718 transitions. [2019-10-13 23:13:05,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:13:05,947 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 718 transitions. [2019-10-13 23:13:05,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 23:13:05,954 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:05,954 INFO L380 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] [2019-10-13 23:13:05,955 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:05,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:05,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1833776125, now seen corresponding path program 1 times [2019-10-13 23:13:05,955 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:05,956 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906260193] [2019-10-13 23:13:05,956 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:05,956 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:05,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:06,222 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:13:06,223 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906260193] [2019-10-13 23:13:06,223 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:06,223 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:13:06,223 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504326862] [2019-10-13 23:13:06,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:13:06,228 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:06,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:13:06,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:13:06,228 INFO L87 Difference]: Start difference. First operand 583 states and 718 transitions. Second operand 4 states. [2019-10-13 23:13:07,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:07,083 INFO L93 Difference]: Finished difference Result 1132 states and 1424 transitions. [2019-10-13 23:13:07,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 23:13:07,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 146 [2019-10-13 23:13:07,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:07,089 INFO L225 Difference]: With dead ends: 1132 [2019-10-13 23:13:07,090 INFO L226 Difference]: Without dead ends: 581 [2019-10-13 23:13:07,093 INFO L600 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 [2019-10-13 23:13:07,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-10-13 23:13:07,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 581. [2019-10-13 23:13:07,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2019-10-13 23:13:07,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 707 transitions. [2019-10-13 23:13:07,165 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 707 transitions. Word has length 146 [2019-10-13 23:13:07,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:07,165 INFO L462 AbstractCegarLoop]: Abstraction has 581 states and 707 transitions. [2019-10-13 23:13:07,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:13:07,166 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 707 transitions. [2019-10-13 23:13:07,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-13 23:13:07,170 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:07,170 INFO L380 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] [2019-10-13 23:13:07,170 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:07,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:07,171 INFO L82 PathProgramCache]: Analyzing trace with hash -945275553, now seen corresponding path program 1 times [2019-10-13 23:13:07,171 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:07,171 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847573855] [2019-10-13 23:13:07,171 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:07,171 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:07,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:07,316 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:13:07,317 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847573855] [2019-10-13 23:13:07,317 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:07,317 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:07,317 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362217149] [2019-10-13 23:13:07,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:07,318 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:07,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:07,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:07,319 INFO L87 Difference]: Start difference. First operand 581 states and 707 transitions. Second operand 3 states. [2019-10-13 23:13:07,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:07,480 INFO L93 Difference]: Finished difference Result 1125 states and 1383 transitions. [2019-10-13 23:13:07,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:07,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-13 23:13:07,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:07,485 INFO L225 Difference]: With dead ends: 1125 [2019-10-13 23:13:07,485 INFO L226 Difference]: Without dead ends: 580 [2019-10-13 23:13:07,487 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:07,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2019-10-13 23:13:07,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2019-10-13 23:13:07,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-10-13 23:13:07,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 703 transitions. [2019-10-13 23:13:07,521 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 703 transitions. Word has length 159 [2019-10-13 23:13:07,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:07,522 INFO L462 AbstractCegarLoop]: Abstraction has 580 states and 703 transitions. [2019-10-13 23:13:07,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:07,522 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 703 transitions. [2019-10-13 23:13:07,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 23:13:07,526 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:07,526 INFO L380 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] [2019-10-13 23:13:07,526 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:07,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:07,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1153514979, now seen corresponding path program 1 times [2019-10-13 23:13:07,527 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:07,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284184121] [2019-10-13 23:13:07,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:07,528 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:07,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:07,769 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:13:07,770 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284184121] [2019-10-13 23:13:07,770 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:07,770 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:13:07,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870691844] [2019-10-13 23:13:07,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:13:07,771 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:07,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:13:07,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:13:07,772 INFO L87 Difference]: Start difference. First operand 580 states and 703 transitions. Second operand 4 states. [2019-10-13 23:13:08,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:08,597 INFO L93 Difference]: Finished difference Result 1097 states and 1330 transitions. [2019-10-13 23:13:08,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 23:13:08,598 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2019-10-13 23:13:08,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:08,602 INFO L225 Difference]: With dead ends: 1097 [2019-10-13 23:13:08,602 INFO L226 Difference]: Without dead ends: 577 [2019-10-13 23:13:08,604 INFO L600 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 [2019-10-13 23:13:08,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2019-10-13 23:13:08,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2019-10-13 23:13:08,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-10-13 23:13:08,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 686 transitions. [2019-10-13 23:13:08,638 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 686 transitions. Word has length 160 [2019-10-13 23:13:08,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:08,639 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 686 transitions. [2019-10-13 23:13:08,639 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:13:08,639 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 686 transitions. [2019-10-13 23:13:08,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-13 23:13:08,642 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:08,643 INFO L380 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] [2019-10-13 23:13:08,643 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:08,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:08,643 INFO L82 PathProgramCache]: Analyzing trace with hash -69801363, now seen corresponding path program 1 times [2019-10-13 23:13:08,644 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:08,644 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87827271] [2019-10-13 23:13:08,644 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:08,644 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:08,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:08,805 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-10-13 23:13:08,805 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87827271] [2019-10-13 23:13:08,806 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:08,806 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:08,806 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890173352] [2019-10-13 23:13:08,807 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:08,807 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:08,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:08,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:08,808 INFO L87 Difference]: Start difference. First operand 577 states and 686 transitions. Second operand 3 states. [2019-10-13 23:13:08,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:08,901 INFO L93 Difference]: Finished difference Result 909 states and 1074 transitions. [2019-10-13 23:13:08,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:08,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-13 23:13:08,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:08,913 INFO L225 Difference]: With dead ends: 909 [2019-10-13 23:13:08,913 INFO L226 Difference]: Without dead ends: 579 [2019-10-13 23:13:08,915 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:08,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2019-10-13 23:13:08,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2019-10-13 23:13:08,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2019-10-13 23:13:08,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 688 transitions. [2019-10-13 23:13:08,947 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 688 transitions. Word has length 181 [2019-10-13 23:13:08,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:08,948 INFO L462 AbstractCegarLoop]: Abstraction has 579 states and 688 transitions. [2019-10-13 23:13:08,948 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:08,948 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 688 transitions. [2019-10-13 23:13:08,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-13 23:13:08,951 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:08,952 INFO L380 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] [2019-10-13 23:13:08,952 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:08,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:08,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1101949612, now seen corresponding path program 1 times [2019-10-13 23:13:08,953 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:08,953 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982406234] [2019-10-13 23:13:08,953 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:08,953 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:08,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:09,134 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-10-13 23:13:09,134 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982406234] [2019-10-13 23:13:09,135 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:09,135 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:09,136 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476060263] [2019-10-13 23:13:09,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:09,137 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:09,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:09,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:09,138 INFO L87 Difference]: Start difference. First operand 579 states and 688 transitions. Second operand 3 states. [2019-10-13 23:13:09,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:09,186 INFO L93 Difference]: Finished difference Result 1106 states and 1345 transitions. [2019-10-13 23:13:09,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:09,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2019-10-13 23:13:09,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:09,192 INFO L225 Difference]: With dead ends: 1106 [2019-10-13 23:13:09,192 INFO L226 Difference]: Without dead ends: 633 [2019-10-13 23:13:09,195 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:09,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2019-10-13 23:13:09,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 632. [2019-10-13 23:13:09,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2019-10-13 23:13:09,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 775 transitions. [2019-10-13 23:13:09,242 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 775 transitions. Word has length 188 [2019-10-13 23:13:09,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:09,243 INFO L462 AbstractCegarLoop]: Abstraction has 632 states and 775 transitions. [2019-10-13 23:13:09,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:09,243 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 775 transitions. [2019-10-13 23:13:09,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 23:13:09,248 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:09,249 INFO L380 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] [2019-10-13 23:13:09,249 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:09,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:09,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1968875577, now seen corresponding path program 1 times [2019-10-13 23:13:09,250 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:09,250 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057999481] [2019-10-13 23:13:09,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:09,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:09,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:09,561 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-13 23:13:09,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057999481] [2019-10-13 23:13:09,562 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:09,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:09,562 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626995294] [2019-10-13 23:13:09,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:09,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:09,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:09,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:09,565 INFO L87 Difference]: Start difference. First operand 632 states and 775 transitions. Second operand 3 states. [2019-10-13 23:13:09,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:09,612 INFO L93 Difference]: Finished difference Result 1042 states and 1270 transitions. [2019-10-13 23:13:09,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:09,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-13 23:13:09,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:09,617 INFO L225 Difference]: With dead ends: 1042 [2019-10-13 23:13:09,618 INFO L226 Difference]: Without dead ends: 724 [2019-10-13 23:13:09,619 INFO L600 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 [2019-10-13 23:13:09,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2019-10-13 23:13:09,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 723. [2019-10-13 23:13:09,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2019-10-13 23:13:09,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 880 transitions. [2019-10-13 23:13:09,666 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 880 transitions. Word has length 189 [2019-10-13 23:13:09,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:09,668 INFO L462 AbstractCegarLoop]: Abstraction has 723 states and 880 transitions. [2019-10-13 23:13:09,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:09,669 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 880 transitions. [2019-10-13 23:13:09,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2019-10-13 23:13:09,677 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:09,677 INFO L380 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] [2019-10-13 23:13:09,678 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:09,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:09,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1345276914, now seen corresponding path program 1 times [2019-10-13 23:13:09,678 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:09,679 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732117329] [2019-10-13 23:13:09,679 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:09,679 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:09,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:10,199 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-10-13 23:13:10,199 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732117329] [2019-10-13 23:13:10,199 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:10,200 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 23:13:10,200 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674213899] [2019-10-13 23:13:10,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 23:13:10,201 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:10,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 23:13:10,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-10-13 23:13:10,201 INFO L87 Difference]: Start difference. First operand 723 states and 880 transitions. Second operand 16 states. [2019-10-13 23:13:16,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:16,298 INFO L93 Difference]: Finished difference Result 1722 states and 2087 transitions. [2019-10-13 23:13:16,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-13 23:13:16,298 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 304 [2019-10-13 23:13:16,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:16,313 INFO L225 Difference]: With dead ends: 1722 [2019-10-13 23:13:16,314 INFO L226 Difference]: Without dead ends: 1347 [2019-10-13 23:13:16,318 INFO L600 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 [2019-10-13 23:13:16,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2019-10-13 23:13:16,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1336. [2019-10-13 23:13:16,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2019-10-13 23:13:16,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1638 transitions. [2019-10-13 23:13:16,444 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1638 transitions. Word has length 304 [2019-10-13 23:13:16,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:16,448 INFO L462 AbstractCegarLoop]: Abstraction has 1336 states and 1638 transitions. [2019-10-13 23:13:16,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 23:13:16,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1638 transitions. [2019-10-13 23:13:16,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2019-10-13 23:13:16,464 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:16,465 INFO L380 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] [2019-10-13 23:13:16,465 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:16,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:16,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1695799518, now seen corresponding path program 1 times [2019-10-13 23:13:16,466 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:16,467 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760834987] [2019-10-13 23:13:16,467 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:16,467 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:16,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:16,894 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 23:13:16,894 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760834987] [2019-10-13 23:13:16,895 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:16,895 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:16,896 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690589224] [2019-10-13 23:13:16,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:16,897 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:16,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:16,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:16,898 INFO L87 Difference]: Start difference. First operand 1336 states and 1638 transitions. Second operand 3 states. [2019-10-13 23:13:17,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:17,049 INFO L93 Difference]: Finished difference Result 3803 states and 4784 transitions. [2019-10-13 23:13:17,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:17,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 315 [2019-10-13 23:13:17,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:17,065 INFO L225 Difference]: With dead ends: 3803 [2019-10-13 23:13:17,066 INFO L226 Difference]: Without dead ends: 2508 [2019-10-13 23:13:17,071 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:17,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2019-10-13 23:13:17,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2505. [2019-10-13 23:13:17,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2505 states. [2019-10-13 23:13:17,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3120 transitions. [2019-10-13 23:13:17,238 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3120 transitions. Word has length 315 [2019-10-13 23:13:17,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:17,239 INFO L462 AbstractCegarLoop]: Abstraction has 2505 states and 3120 transitions. [2019-10-13 23:13:17,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:17,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3120 transitions. [2019-10-13 23:13:17,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2019-10-13 23:13:17,252 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:17,252 INFO L380 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] [2019-10-13 23:13:17,253 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:17,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:17,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1544339518, now seen corresponding path program 1 times [2019-10-13 23:13:17,253 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:17,253 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464799588] [2019-10-13 23:13:17,254 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:17,254 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:17,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:17,486 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 23:13:17,490 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464799588] [2019-10-13 23:13:17,490 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:17,491 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:17,491 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787828786] [2019-10-13 23:13:17,492 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:17,492 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:17,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:17,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:17,495 INFO L87 Difference]: Start difference. First operand 2505 states and 3120 transitions. Second operand 3 states. [2019-10-13 23:13:17,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:17,771 INFO L93 Difference]: Finished difference Result 6057 states and 7742 transitions. [2019-10-13 23:13:17,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:17,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 317 [2019-10-13 23:13:17,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:17,797 INFO L225 Difference]: With dead ends: 6057 [2019-10-13 23:13:17,798 INFO L226 Difference]: Without dead ends: 3596 [2019-10-13 23:13:17,817 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:17,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3596 states. [2019-10-13 23:13:18,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3596 to 3593. [2019-10-13 23:13:18,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3593 states. [2019-10-13 23:13:18,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 4477 transitions. [2019-10-13 23:13:18,119 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 4477 transitions. Word has length 317 [2019-10-13 23:13:18,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:18,120 INFO L462 AbstractCegarLoop]: Abstraction has 3593 states and 4477 transitions. [2019-10-13 23:13:18,120 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:18,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 4477 transitions. [2019-10-13 23:13:18,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2019-10-13 23:13:18,142 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:18,143 INFO L380 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] [2019-10-13 23:13:18,144 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:18,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:18,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1981239029, now seen corresponding path program 1 times [2019-10-13 23:13:18,145 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:18,145 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026536369] [2019-10-13 23:13:18,145 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:18,146 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:18,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:18,567 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-10-13 23:13:18,567 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026536369] [2019-10-13 23:13:18,567 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:18,568 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 23:13:18,568 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467245015] [2019-10-13 23:13:18,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:13:18,569 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:18,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:13:18,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:13:18,569 INFO L87 Difference]: Start difference. First operand 3593 states and 4477 transitions. Second operand 11 states. [2019-10-13 23:13:23,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:23,542 INFO L93 Difference]: Finished difference Result 6939 states and 8589 transitions. [2019-10-13 23:13:23,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:13:23,542 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 300 [2019-10-13 23:13:23,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:23,576 INFO L225 Difference]: With dead ends: 6939 [2019-10-13 23:13:23,576 INFO L226 Difference]: Without dead ends: 5100 [2019-10-13 23:13:23,584 INFO L600 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 [2019-10-13 23:13:23,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5100 states. [2019-10-13 23:13:23,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5100 to 5063. [2019-10-13 23:13:23,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5063 states. [2019-10-13 23:13:23,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5063 states to 5063 states and 6312 transitions. [2019-10-13 23:13:23,964 INFO L78 Accepts]: Start accepts. Automaton has 5063 states and 6312 transitions. Word has length 300 [2019-10-13 23:13:23,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:23,966 INFO L462 AbstractCegarLoop]: Abstraction has 5063 states and 6312 transitions. [2019-10-13 23:13:23,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:13:23,967 INFO L276 IsEmpty]: Start isEmpty. Operand 5063 states and 6312 transitions. [2019-10-13 23:13:23,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2019-10-13 23:13:23,990 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:23,991 INFO L380 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] [2019-10-13 23:13:23,992 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:23,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:23,992 INFO L82 PathProgramCache]: Analyzing trace with hash -397464041, now seen corresponding path program 1 times [2019-10-13 23:13:23,993 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:23,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321477924] [2019-10-13 23:13:23,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:23,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:23,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:24,262 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-10-13 23:13:24,263 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321477924] [2019-10-13 23:13:24,263 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:24,263 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:24,264 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738414676] [2019-10-13 23:13:24,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:24,265 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:24,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:24,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:24,265 INFO L87 Difference]: Start difference. First operand 5063 states and 6312 transitions. Second operand 3 states. [2019-10-13 23:13:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:24,465 INFO L93 Difference]: Finished difference Result 10504 states and 13364 transitions. [2019-10-13 23:13:24,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:24,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2019-10-13 23:13:24,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:24,499 INFO L225 Difference]: With dead ends: 10504 [2019-10-13 23:13:24,499 INFO L226 Difference]: Without dead ends: 5675 [2019-10-13 23:13:24,518 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:24,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5675 states. [2019-10-13 23:13:24,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5675 to 5669. [2019-10-13 23:13:24,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5669 states. [2019-10-13 23:13:24,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7290 transitions. [2019-10-13 23:13:24,843 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7290 transitions. Word has length 325 [2019-10-13 23:13:24,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:24,844 INFO L462 AbstractCegarLoop]: Abstraction has 5669 states and 7290 transitions. [2019-10-13 23:13:24,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:24,844 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7290 transitions. [2019-10-13 23:13:24,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2019-10-13 23:13:24,869 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:24,870 INFO L380 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] [2019-10-13 23:13:24,870 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:24,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:24,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1163070922, now seen corresponding path program 1 times [2019-10-13 23:13:24,871 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:24,871 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110751367] [2019-10-13 23:13:24,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:24,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:24,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:25,218 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-10-13 23:13:25,218 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110751367] [2019-10-13 23:13:25,218 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:25,219 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:25,219 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168586133] [2019-10-13 23:13:25,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:25,221 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:25,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:25,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:25,222 INFO L87 Difference]: Start difference. First operand 5669 states and 7290 transitions. Second operand 3 states. [2019-10-13 23:13:25,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:25,448 INFO L93 Difference]: Finished difference Result 12274 states and 16238 transitions. [2019-10-13 23:13:25,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:25,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 326 [2019-10-13 23:13:25,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:25,496 INFO L225 Difference]: With dead ends: 12274 [2019-10-13 23:13:25,496 INFO L226 Difference]: Without dead ends: 6839 [2019-10-13 23:13:25,513 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:25,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2019-10-13 23:13:25,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 6833. [2019-10-13 23:13:25,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6833 states. [2019-10-13 23:13:25,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6833 states to 6833 states and 9174 transitions. [2019-10-13 23:13:25,865 INFO L78 Accepts]: Start accepts. Automaton has 6833 states and 9174 transitions. Word has length 326 [2019-10-13 23:13:25,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:25,866 INFO L462 AbstractCegarLoop]: Abstraction has 6833 states and 9174 transitions. [2019-10-13 23:13:25,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:25,866 INFO L276 IsEmpty]: Start isEmpty. Operand 6833 states and 9174 transitions. [2019-10-13 23:13:25,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2019-10-13 23:13:25,892 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:25,893 INFO L380 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] [2019-10-13 23:13:25,893 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:25,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:25,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1024689187, now seen corresponding path program 1 times [2019-10-13 23:13:25,894 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:25,894 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978897082] [2019-10-13 23:13:25,894 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:25,894 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:25,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:26,243 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-10-13 23:13:26,244 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978897082] [2019-10-13 23:13:26,244 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:26,245 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:26,245 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222188260] [2019-10-13 23:13:26,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:26,246 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:26,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:26,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:26,247 INFO L87 Difference]: Start difference. First operand 6833 states and 9174 transitions. Second operand 3 states. [2019-10-13 23:13:26,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:26,554 INFO L93 Difference]: Finished difference Result 15670 states and 21746 transitions. [2019-10-13 23:13:26,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:26,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 327 [2019-10-13 23:13:26,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:26,603 INFO L225 Difference]: With dead ends: 15670 [2019-10-13 23:13:26,604 INFO L226 Difference]: Without dead ends: 9071 [2019-10-13 23:13:26,626 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:26,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9071 states. [2019-10-13 23:13:27,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9071 to 9065. [2019-10-13 23:13:27,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9065 states. [2019-10-13 23:13:27,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9065 states to 9065 states and 12774 transitions. [2019-10-13 23:13:27,051 INFO L78 Accepts]: Start accepts. Automaton has 9065 states and 12774 transitions. Word has length 327 [2019-10-13 23:13:27,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:27,051 INFO L462 AbstractCegarLoop]: Abstraction has 9065 states and 12774 transitions. [2019-10-13 23:13:27,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:27,052 INFO L276 IsEmpty]: Start isEmpty. Operand 9065 states and 12774 transitions. [2019-10-13 23:13:27,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2019-10-13 23:13:27,090 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:27,091 INFO L380 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] [2019-10-13 23:13:27,091 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:27,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:27,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1957005424, now seen corresponding path program 1 times [2019-10-13 23:13:27,092 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:27,092 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693883118] [2019-10-13 23:13:27,092 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:27,092 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:27,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:27,509 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-10-13 23:13:27,510 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693883118] [2019-10-13 23:13:27,510 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:27,510 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:27,510 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525524415] [2019-10-13 23:13:27,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:27,511 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:27,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:27,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:27,512 INFO L87 Difference]: Start difference. First operand 9065 states and 12774 transitions. Second operand 3 states. [2019-10-13 23:13:27,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:27,852 INFO L93 Difference]: Finished difference Result 22174 states and 32258 transitions. [2019-10-13 23:13:27,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:27,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 328 [2019-10-13 23:13:27,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:27,901 INFO L225 Difference]: With dead ends: 22174 [2019-10-13 23:13:27,902 INFO L226 Difference]: Without dead ends: 13343 [2019-10-13 23:13:27,928 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:27,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13343 states. [2019-10-13 23:13:28,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13343 to 13337. [2019-10-13 23:13:28,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13337 states. [2019-10-13 23:13:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13337 states to 13337 states and 19638 transitions. [2019-10-13 23:13:28,657 INFO L78 Accepts]: Start accepts. Automaton has 13337 states and 19638 transitions. Word has length 328 [2019-10-13 23:13:28,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:28,658 INFO L462 AbstractCegarLoop]: Abstraction has 13337 states and 19638 transitions. [2019-10-13 23:13:28,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:28,658 INFO L276 IsEmpty]: Start isEmpty. Operand 13337 states and 19638 transitions. [2019-10-13 23:13:28,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2019-10-13 23:13:28,714 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:28,715 INFO L380 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, 1] [2019-10-13 23:13:28,715 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:28,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:28,716 INFO L82 PathProgramCache]: Analyzing trace with hash -280487517, now seen corresponding path program 1 times [2019-10-13 23:13:28,716 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:28,716 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778729952] [2019-10-13 23:13:28,716 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:28,716 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:28,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat