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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec27_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:14:20,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:14:20,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:14:20,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:14:20,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:14:20,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:14:20,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:14:20,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:14:20,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:14:20,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:14:20,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:14:20,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:14:20,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:14:20,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:14:20,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:14:20,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:14:20,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:14:20,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:14:20,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:14:20,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:14:20,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:14:20,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:14:20,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:14:20,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:14:20,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:14:20,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:14:20,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:14:20,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:14:20,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:14:20,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:14:20,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:14:20,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:14:21,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:14:21,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:14:21,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:14:21,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:14:21,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:14:21,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:14:21,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:14:21,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:14:21,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:14:21,006 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 [2019-10-15 01:14:21,022 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:14:21,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:14:21,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:14:21,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:14:21,024 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:14:21,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:14:21,024 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:14:21,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:14:21,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:14:21,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:14:21,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:14:21,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:14:21,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:14:21,026 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:14:21,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:14:21,026 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:14:21,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:14:21,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:14:21,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:14:21,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:14:21,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:14:21,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:14:21,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:14:21,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:14:21,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:14:21,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:14:21,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:14:21,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:14:21,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:14:21,394 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:14:21,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:14:21,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:14:21,425 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:14:21,426 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:14:21,427 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_productSimulator.cil.c [2019-10-15 01:14:21,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a94e3d0/2e05dc8e551c455a93e8b6cd31623368/FLAGec35e0fac [2019-10-15 01:14:22,193 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:14:22,195 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_productSimulator.cil.c [2019-10-15 01:14:22,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a94e3d0/2e05dc8e551c455a93e8b6cd31623368/FLAGec35e0fac [2019-10-15 01:14:22,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a94e3d0/2e05dc8e551c455a93e8b6cd31623368 [2019-10-15 01:14:22,329 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:14:22,331 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:14:22,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:22,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:14:22,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:14:22,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:22" (1/1) ... [2019-10-15 01:14:22,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@292422ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:22, skipping insertion in model container [2019-10-15 01:14:22,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:22" (1/1) ... [2019-10-15 01:14:22,353 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:14:22,440 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:14:23,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:23,204 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:14:23,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:23,501 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:14:23,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:23 WrapperNode [2019-10-15 01:14:23,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:23,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:14:23,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:14:23,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:14:23,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:23" (1/1) ... [2019-10-15 01:14:23,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:23" (1/1) ... [2019-10-15 01:14:23,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:23" (1/1) ... [2019-10-15 01:14:23,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:23" (1/1) ... [2019-10-15 01:14:23,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:23" (1/1) ... [2019-10-15 01:14:23,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:23" (1/1) ... [2019-10-15 01:14:23,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:23" (1/1) ... [2019-10-15 01:14:23,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:14:23,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:14:23,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:14:23,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:14:23,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:23" (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 [2019-10-15 01:14:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:14:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:14:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:14:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:14:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:14:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:14:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:14:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:14:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:14:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:14:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:14:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:14:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:14:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:14:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:14:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:14:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:14:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:14:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:14:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:14:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:14:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:14:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:14:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:14:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:14:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:14:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:14:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:14:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:14:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:14:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:14:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:14:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:14:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:14:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:14:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:14:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:14:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:14:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:14:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:14:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:14:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-15 01:14:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:14:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:14:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:14:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:14:23,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:14:23,837 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:14:23,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:14:23,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:14:23,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:14:23,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:14:23,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:14:23,839 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:14:23,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:14:23,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:14:23,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:14:23,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:14:23,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:14:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:14:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:14:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:14:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:14:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:14:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-15 01:14:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-15 01:14:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-15 01:14:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-15 01:14:23,843 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-15 01:14:23,843 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-15 01:14:23,844 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:14:23,844 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:14:23,844 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-15 01:14:23,844 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-15 01:14:23,844 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-15 01:14:23,845 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-15 01:14:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-15 01:14:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-15 01:14:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-15 01:14:23,847 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-15 01:14:23,847 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:14:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:14:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:14:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:14:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:14:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:14:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:14:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:14:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:14:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:14:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:14:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:14:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:14:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:14:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-15 01:14:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-15 01:14:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:14:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-15 01:14:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-15 01:14:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:14:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-15 01:14:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-15 01:14:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:14:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:14:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:14:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:14:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:14:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:14:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:14:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:14:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:14:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:14:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:14:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:14:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:14:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:14:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:14:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:14:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:14:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-15 01:14:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-15 01:14:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-15 01:14:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-15 01:14:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-15 01:14:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-15 01:14:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:14:23,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-15 01:14:23,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-15 01:14:23,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:14:23,879 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:14:23,879 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:14:23,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:14:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:14:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:14:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:14:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:14:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:14:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:14:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:14:23,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:14:23,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:23,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:14:23,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:23,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:14:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:14:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:14:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:14:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:14:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:14:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:14:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:14:23,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:14:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:14:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:14:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:14:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:14:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:14:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:14:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:14:23,894 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:14:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:14:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:14:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:14:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:14:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:14:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:14:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:14:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:14:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:14:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:14:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:14:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:14:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:14:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:14:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:14:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:14:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:14:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:14:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:14:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:14:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:14:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:14:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:14:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:14:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:14:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:14:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:14:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:14:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:14:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:14:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:14:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:14:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:14:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:14:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:14:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:14:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:14:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:14:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:14:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-15 01:14:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:14:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:14:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:14:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:14:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:14:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:14:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:14:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:14:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:14:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:14:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:14:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:14:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:14:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:14:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:14:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:14:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:14:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:14:23,904 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:14:23,904 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:14:23,904 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:14:23,904 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:14:23,904 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:14:23,904 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:14:23,904 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:14:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:14:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:14:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:14:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:14:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:14:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:14:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:14:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:14:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:14:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:14:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:14:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:14:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:14:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:14:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-15 01:14:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-15 01:14:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-15 01:14:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-15 01:14:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-15 01:14:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-15 01:14:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-15 01:14:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-15 01:14:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-15 01:14:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-15 01:14:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-15 01:14:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-15 01:14:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-15 01:14:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-15 01:14:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:14:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:14:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:14:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:14:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:14:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:14:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:14:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:14:23,914 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-15 01:14:23,914 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-15 01:14:23,914 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-15 01:14:23,914 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-15 01:14:23,914 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-15 01:14:23,916 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-15 01:14:23,917 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:14:23,917 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-15 01:14:23,917 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-15 01:14:23,917 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-15 01:14:23,918 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-15 01:14:23,918 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-15 01:14:23,918 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-15 01:14:23,918 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-15 01:14:23,918 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-15 01:14:23,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:14:23,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:14:23,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:14:26,371 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:14:26,372 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:14:26,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:26 BoogieIcfgContainer [2019-10-15 01:14:26,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:14:26,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:14:26,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:14:26,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:14:26,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:14:22" (1/3) ... [2019-10-15 01:14:26,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6682f1f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:26, skipping insertion in model container [2019-10-15 01:14:26,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:23" (2/3) ... [2019-10-15 01:14:26,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6682f1f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:26, skipping insertion in model container [2019-10-15 01:14:26,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:26" (3/3) ... [2019-10-15 01:14:26,416 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_productSimulator.cil.c [2019-10-15 01:14:26,426 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:14:26,437 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:14:26,449 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:14:26,484 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:14:26,485 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:14:26,485 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:14:26,485 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:14:26,485 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:14:26,485 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:14:26,485 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:14:26,485 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:14:26,522 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states. [2019-10-15 01:14:26,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-15 01:14:26,554 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:26,555 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 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] [2019-10-15 01:14:26,557 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:26,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:26,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1302396452, now seen corresponding path program 1 times [2019-10-15 01:14:26,574 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:26,574 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225662697] [2019-10-15 01:14:26,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:26,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:26,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-15 01:14:27,249 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225662697] [2019-10-15 01:14:27,250 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:27,250 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:14:27,250 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858558275] [2019-10-15 01:14:27,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:14:27,259 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:27,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:14:27,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:14:27,277 INFO L87 Difference]: Start difference. First operand 816 states. Second operand 6 states. [2019-10-15 01:14:27,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:27,594 INFO L93 Difference]: Finished difference Result 1550 states and 2157 transitions. [2019-10-15 01:14:27,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:14:27,596 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 205 [2019-10-15 01:14:27,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:27,632 INFO L225 Difference]: With dead ends: 1550 [2019-10-15 01:14:27,632 INFO L226 Difference]: Without dead ends: 787 [2019-10-15 01:14:27,646 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 [2019-10-15 01:14:27,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2019-10-15 01:14:27,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2019-10-15 01:14:27,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-10-15 01:14:27,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1072 transitions. [2019-10-15 01:14:27,867 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1072 transitions. Word has length 205 [2019-10-15 01:14:27,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:27,870 INFO L462 AbstractCegarLoop]: Abstraction has 787 states and 1072 transitions. [2019-10-15 01:14:27,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:14:27,871 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1072 transitions. [2019-10-15 01:14:27,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-15 01:14:27,886 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:27,889 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 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] [2019-10-15 01:14:27,890 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:27,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:27,890 INFO L82 PathProgramCache]: Analyzing trace with hash 988197411, now seen corresponding path program 1 times [2019-10-15 01:14:27,890 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:27,891 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573640478] [2019-10-15 01:14:27,891 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:27,891 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:27,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:28,155 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-15 01:14:28,155 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573640478] [2019-10-15 01:14:28,156 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:28,156 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:14:28,156 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984527353] [2019-10-15 01:14:28,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:14:28,159 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:28,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:14:28,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:14:28,159 INFO L87 Difference]: Start difference. First operand 787 states and 1072 transitions. Second operand 4 states. [2019-10-15 01:14:29,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:29,013 INFO L93 Difference]: Finished difference Result 1531 states and 2109 transitions. [2019-10-15 01:14:29,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:14:29,013 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 211 [2019-10-15 01:14:29,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:29,019 INFO L225 Difference]: With dead ends: 1531 [2019-10-15 01:14:29,019 INFO L226 Difference]: Without dead ends: 788 [2019-10-15 01:14:29,022 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 [2019-10-15 01:14:29,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-10-15 01:14:29,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2019-10-15 01:14:29,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2019-10-15 01:14:29,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1067 transitions. [2019-10-15 01:14:29,067 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1067 transitions. Word has length 211 [2019-10-15 01:14:29,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:29,067 INFO L462 AbstractCegarLoop]: Abstraction has 788 states and 1067 transitions. [2019-10-15 01:14:29,067 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:14:29,068 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1067 transitions. [2019-10-15 01:14:29,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-15 01:14:29,072 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:29,073 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 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] [2019-10-15 01:14:29,073 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:29,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:29,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1021601412, now seen corresponding path program 1 times [2019-10-15 01:14:29,074 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:29,074 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698189618] [2019-10-15 01:14:29,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:29,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:29,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:29,314 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-15 01:14:29,314 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698189618] [2019-10-15 01:14:29,315 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:29,315 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:29,315 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028131686] [2019-10-15 01:14:29,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:29,316 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:29,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:29,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:29,317 INFO L87 Difference]: Start difference. First operand 788 states and 1067 transitions. Second operand 3 states. [2019-10-15 01:14:29,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:29,417 INFO L93 Difference]: Finished difference Result 2240 states and 3094 transitions. [2019-10-15 01:14:29,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:29,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 230 [2019-10-15 01:14:29,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:29,428 INFO L225 Difference]: With dead ends: 2240 [2019-10-15 01:14:29,429 INFO L226 Difference]: Without dead ends: 1497 [2019-10-15 01:14:29,432 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 [2019-10-15 01:14:29,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2019-10-15 01:14:29,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1494. [2019-10-15 01:14:29,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2019-10-15 01:14:29,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2049 transitions. [2019-10-15 01:14:29,532 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2049 transitions. Word has length 230 [2019-10-15 01:14:29,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:29,533 INFO L462 AbstractCegarLoop]: Abstraction has 1494 states and 2049 transitions. [2019-10-15 01:14:29,533 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:29,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2049 transitions. [2019-10-15 01:14:29,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-15 01:14:29,541 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:29,541 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 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] [2019-10-15 01:14:29,541 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:29,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:29,542 INFO L82 PathProgramCache]: Analyzing trace with hash 83138754, now seen corresponding path program 1 times [2019-10-15 01:14:29,542 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:29,542 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087652825] [2019-10-15 01:14:29,542 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:29,543 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:29,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:29,797 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-15 01:14:29,798 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087652825] [2019-10-15 01:14:29,798 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:29,798 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:29,798 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321504626] [2019-10-15 01:14:29,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:29,799 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:29,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:29,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:29,800 INFO L87 Difference]: Start difference. First operand 1494 states and 2049 transitions. Second operand 3 states. [2019-10-15 01:14:29,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:29,991 INFO L93 Difference]: Finished difference Result 1497 states and 2051 transitions. [2019-10-15 01:14:29,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:29,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-10-15 01:14:29,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:29,998 INFO L225 Difference]: With dead ends: 1497 [2019-10-15 01:14:29,998 INFO L226 Difference]: Without dead ends: 789 [2019-10-15 01:14:30,004 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 [2019-10-15 01:14:30,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2019-10-15 01:14:30,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2019-10-15 01:14:30,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2019-10-15 01:14:30,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1061 transitions. [2019-10-15 01:14:30,052 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1061 transitions. Word has length 231 [2019-10-15 01:14:30,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:30,055 INFO L462 AbstractCegarLoop]: Abstraction has 789 states and 1061 transitions. [2019-10-15 01:14:30,055 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:30,055 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1061 transitions. [2019-10-15 01:14:30,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-15 01:14:30,063 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:30,063 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 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] [2019-10-15 01:14:30,064 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:30,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:30,064 INFO L82 PathProgramCache]: Analyzing trace with hash -575856261, now seen corresponding path program 1 times [2019-10-15 01:14:30,065 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:30,066 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642445730] [2019-10-15 01:14:30,066 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:30,066 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:30,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:30,250 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-15 01:14:30,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642445730] [2019-10-15 01:14:30,251 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:30,251 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:14:30,251 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554921088] [2019-10-15 01:14:30,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:14:30,252 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:30,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:14:30,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:14:30,253 INFO L87 Difference]: Start difference. First operand 789 states and 1061 transitions. Second operand 4 states. [2019-10-15 01:14:31,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:31,078 INFO L93 Difference]: Finished difference Result 1515 states and 2046 transitions. [2019-10-15 01:14:31,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:14:31,079 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 245 [2019-10-15 01:14:31,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:31,085 INFO L225 Difference]: With dead ends: 1515 [2019-10-15 01:14:31,085 INFO L226 Difference]: Without dead ends: 795 [2019-10-15 01:14:31,087 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 [2019-10-15 01:14:31,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2019-10-15 01:14:31,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 789. [2019-10-15 01:14:31,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2019-10-15 01:14:31,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1046 transitions. [2019-10-15 01:14:31,125 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1046 transitions. Word has length 245 [2019-10-15 01:14:31,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:31,125 INFO L462 AbstractCegarLoop]: Abstraction has 789 states and 1046 transitions. [2019-10-15 01:14:31,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:14:31,126 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1046 transitions. [2019-10-15 01:14:31,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-10-15 01:14:31,131 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:31,132 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:14:31,132 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:31,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:31,132 INFO L82 PathProgramCache]: Analyzing trace with hash 218526341, now seen corresponding path program 1 times [2019-10-15 01:14:31,133 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:31,133 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389647655] [2019-10-15 01:14:31,133 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:31,133 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:31,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:31,339 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-15 01:14:31,340 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389647655] [2019-10-15 01:14:31,344 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:31,345 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:31,345 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660046336] [2019-10-15 01:14:31,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:31,346 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:31,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:31,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:31,346 INFO L87 Difference]: Start difference. First operand 789 states and 1046 transitions. Second operand 3 states. [2019-10-15 01:14:31,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:31,439 INFO L93 Difference]: Finished difference Result 1225 states and 1607 transitions. [2019-10-15 01:14:31,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:31,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2019-10-15 01:14:31,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:31,444 INFO L225 Difference]: With dead ends: 1225 [2019-10-15 01:14:31,444 INFO L226 Difference]: Without dead ends: 792 [2019-10-15 01:14:31,446 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 [2019-10-15 01:14:31,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2019-10-15 01:14:31,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 791. [2019-10-15 01:14:31,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2019-10-15 01:14:31,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1048 transitions. [2019-10-15 01:14:31,482 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1048 transitions. Word has length 272 [2019-10-15 01:14:31,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:31,483 INFO L462 AbstractCegarLoop]: Abstraction has 791 states and 1048 transitions. [2019-10-15 01:14:31,483 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:31,483 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1048 transitions. [2019-10-15 01:14:31,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2019-10-15 01:14:31,488 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:31,489 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:31,489 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:31,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:31,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1200585663, now seen corresponding path program 1 times [2019-10-15 01:14:31,490 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:31,490 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213823962] [2019-10-15 01:14:31,490 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:31,490 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:31,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:31,674 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-15 01:14:31,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213823962] [2019-10-15 01:14:31,674 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:31,675 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:31,675 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331110880] [2019-10-15 01:14:31,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:31,676 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:31,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:31,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:31,677 INFO L87 Difference]: Start difference. First operand 791 states and 1048 transitions. Second operand 3 states. [2019-10-15 01:14:31,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:31,733 INFO L93 Difference]: Finished difference Result 1514 states and 2048 transitions. [2019-10-15 01:14:31,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:31,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 280 [2019-10-15 01:14:31,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:31,743 INFO L225 Difference]: With dead ends: 1514 [2019-10-15 01:14:31,744 INFO L226 Difference]: Without dead ends: 846 [2019-10-15 01:14:31,746 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 [2019-10-15 01:14:31,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2019-10-15 01:14:31,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 845. [2019-10-15 01:14:31,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 845 states. [2019-10-15 01:14:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1136 transitions. [2019-10-15 01:14:31,794 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1136 transitions. Word has length 280 [2019-10-15 01:14:31,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:31,794 INFO L462 AbstractCegarLoop]: Abstraction has 845 states and 1136 transitions. [2019-10-15 01:14:31,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:31,795 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1136 transitions. [2019-10-15 01:14:31,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2019-10-15 01:14:31,803 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:31,804 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:31,804 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:31,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:31,805 INFO L82 PathProgramCache]: Analyzing trace with hash -398027279, now seen corresponding path program 1 times [2019-10-15 01:14:31,805 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:31,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779777068] [2019-10-15 01:14:31,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:31,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:31,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:32,171 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-15 01:14:32,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779777068] [2019-10-15 01:14:32,171 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:32,172 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:14:32,172 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308547366] [2019-10-15 01:14:32,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:14:32,173 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:32,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:14:32,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:14:32,174 INFO L87 Difference]: Start difference. First operand 845 states and 1136 transitions. Second operand 9 states. [2019-10-15 01:14:32,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:32,536 INFO L93 Difference]: Finished difference Result 1285 states and 1726 transitions. [2019-10-15 01:14:32,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:14:32,536 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 281 [2019-10-15 01:14:32,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:32,545 INFO L225 Difference]: With dead ends: 1285 [2019-10-15 01:14:32,545 INFO L226 Difference]: Without dead ends: 865 [2019-10-15 01:14:32,550 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2019-10-15 01:14:32,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2019-10-15 01:14:32,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 849. [2019-10-15 01:14:32,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2019-10-15 01:14:32,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1141 transitions. [2019-10-15 01:14:32,586 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1141 transitions. Word has length 281 [2019-10-15 01:14:32,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:32,590 INFO L462 AbstractCegarLoop]: Abstraction has 849 states and 1141 transitions. [2019-10-15 01:14:32,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:14:32,590 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1141 transitions. [2019-10-15 01:14:32,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2019-10-15 01:14:32,595 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:32,596 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:32,596 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:32,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:32,596 INFO L82 PathProgramCache]: Analyzing trace with hash 308695699, now seen corresponding path program 1 times [2019-10-15 01:14:32,597 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:32,597 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131752915] [2019-10-15 01:14:32,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:32,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:32,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:32,855 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-15 01:14:32,855 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131752915] [2019-10-15 01:14:32,856 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:32,856 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:14:32,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753003901] [2019-10-15 01:14:32,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:14:32,857 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:32,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:14:32,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:14:32,859 INFO L87 Difference]: Start difference. First operand 849 states and 1141 transitions. Second operand 4 states. [2019-10-15 01:14:34,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:34,062 INFO L93 Difference]: Finished difference Result 2414 states and 3318 transitions. [2019-10-15 01:14:34,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:14:34,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 288 [2019-10-15 01:14:34,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:34,072 INFO L225 Difference]: With dead ends: 2414 [2019-10-15 01:14:34,072 INFO L226 Difference]: Without dead ends: 1611 [2019-10-15 01:14:34,075 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 [2019-10-15 01:14:34,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2019-10-15 01:14:34,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1608. [2019-10-15 01:14:34,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1608 states. [2019-10-15 01:14:34,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2160 transitions. [2019-10-15 01:14:34,151 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2160 transitions. Word has length 288 [2019-10-15 01:14:34,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:34,152 INFO L462 AbstractCegarLoop]: Abstraction has 1608 states and 2160 transitions. [2019-10-15 01:14:34,152 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:14:34,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2160 transitions. [2019-10-15 01:14:34,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2019-10-15 01:14:34,161 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:34,161 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:34,162 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:34,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:34,162 INFO L82 PathProgramCache]: Analyzing trace with hash -803792840, now seen corresponding path program 1 times [2019-10-15 01:14:34,162 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:34,163 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041368983] [2019-10-15 01:14:34,163 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:34,163 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:34,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:34,459 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-15 01:14:34,459 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041368983] [2019-10-15 01:14:34,459 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:34,460 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:14:34,460 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697219653] [2019-10-15 01:14:34,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:14:34,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:34,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:14:34,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:14:34,461 INFO L87 Difference]: Start difference. First operand 1608 states and 2160 transitions. Second operand 7 states. [2019-10-15 01:14:38,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:38,475 INFO L93 Difference]: Finished difference Result 3296 states and 4396 transitions. [2019-10-15 01:14:38,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:14:38,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 288 [2019-10-15 01:14:38,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:38,492 INFO L225 Difference]: With dead ends: 3296 [2019-10-15 01:14:38,493 INFO L226 Difference]: Without dead ends: 2478 [2019-10-15 01:14:38,496 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:14:38,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2019-10-15 01:14:38,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2463. [2019-10-15 01:14:38,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2463 states. [2019-10-15 01:14:38,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 3274 transitions. [2019-10-15 01:14:38,615 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 3274 transitions. Word has length 288 [2019-10-15 01:14:38,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:38,615 INFO L462 AbstractCegarLoop]: Abstraction has 2463 states and 3274 transitions. [2019-10-15 01:14:38,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:14:38,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 3274 transitions. [2019-10-15 01:14:38,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2019-10-15 01:14:38,626 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:38,627 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:38,627 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:38,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:38,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1576359952, now seen corresponding path program 1 times [2019-10-15 01:14:38,628 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:38,628 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595021424] [2019-10-15 01:14:38,628 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:38,629 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:38,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:39,454 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-15 01:14:39,455 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595021424] [2019-10-15 01:14:39,455 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:39,455 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2019-10-15 01:14:39,455 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642405057] [2019-10-15 01:14:39,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-10-15 01:14:39,456 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:39,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-10-15 01:14:39,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=1191, Unknown=0, NotChecked=0, Total=1260 [2019-10-15 01:14:39,458 INFO L87 Difference]: Start difference. First operand 2463 states and 3274 transitions. Second operand 36 states. [2019-10-15 01:14:40,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:40,971 INFO L93 Difference]: Finished difference Result 3431 states and 4533 transitions. [2019-10-15 01:14:40,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-10-15 01:14:40,972 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 289 [2019-10-15 01:14:40,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:40,991 INFO L225 Difference]: With dead ends: 3431 [2019-10-15 01:14:40,991 INFO L226 Difference]: Without dead ends: 2605 [2019-10-15 01:14:40,996 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=133, Invalid=2519, Unknown=0, NotChecked=0, Total=2652 [2019-10-15 01:14:40,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2019-10-15 01:14:41,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2600. [2019-10-15 01:14:41,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2600 states. [2019-10-15 01:14:41,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 3437 transitions. [2019-10-15 01:14:41,122 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 3437 transitions. Word has length 289 [2019-10-15 01:14:41,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:41,122 INFO L462 AbstractCegarLoop]: Abstraction has 2600 states and 3437 transitions. [2019-10-15 01:14:41,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-10-15 01:14:41,123 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 3437 transitions. [2019-10-15 01:14:41,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-10-15 01:14:41,135 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:41,135 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 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, 1] [2019-10-15 01:14:41,135 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:41,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:41,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1491044311, now seen corresponding path program 1 times [2019-10-15 01:14:41,136 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:41,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397780127] [2019-10-15 01:14:41,137 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:41,137 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:41,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:41,346 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-10-15 01:14:41,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397780127] [2019-10-15 01:14:41,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:41,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:41,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878885408] [2019-10-15 01:14:41,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:41,348 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:41,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:41,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:41,349 INFO L87 Difference]: Start difference. First operand 2600 states and 3437 transitions. Second operand 3 states. [2019-10-15 01:14:41,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:41,484 INFO L93 Difference]: Finished difference Result 5416 states and 7190 transitions. [2019-10-15 01:14:41,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:41,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 298 [2019-10-15 01:14:41,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:41,507 INFO L225 Difference]: With dead ends: 5416 [2019-10-15 01:14:41,507 INFO L226 Difference]: Without dead ends: 3734 [2019-10-15 01:14:41,514 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 [2019-10-15 01:14:41,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2019-10-15 01:14:41,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 3731. [2019-10-15 01:14:41,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3731 states. [2019-10-15 01:14:41,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 4959 transitions. [2019-10-15 01:14:41,760 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 4959 transitions. Word has length 298 [2019-10-15 01:14:41,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:41,761 INFO L462 AbstractCegarLoop]: Abstraction has 3731 states and 4959 transitions. [2019-10-15 01:14:41,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:41,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 4959 transitions. [2019-10-15 01:14:41,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-10-15 01:14:41,773 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:41,774 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:41,775 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:41,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:41,775 INFO L82 PathProgramCache]: Analyzing trace with hash 698994677, now seen corresponding path program 1 times [2019-10-15 01:14:41,776 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:41,776 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733167489] [2019-10-15 01:14:41,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:41,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:41,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:42,824 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-15 01:14:42,825 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733167489] [2019-10-15 01:14:42,825 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:42,825 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2019-10-15 01:14:42,825 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287826881] [2019-10-15 01:14:42,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-10-15 01:14:42,826 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:42,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-10-15 01:14:42,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1333, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 01:14:42,828 INFO L87 Difference]: Start difference. First operand 3731 states and 4959 transitions. Second operand 38 states. [2019-10-15 01:14:44,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:44,531 INFO L93 Difference]: Finished difference Result 4705 states and 6265 transitions. [2019-10-15 01:14:44,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-15 01:14:44,532 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 298 [2019-10-15 01:14:44,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:44,554 INFO L225 Difference]: With dead ends: 4705 [2019-10-15 01:14:44,554 INFO L226 Difference]: Without dead ends: 3965 [2019-10-15 01:14:44,559 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=141, Invalid=2829, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:14:44,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2019-10-15 01:14:44,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 3944. [2019-10-15 01:14:44,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3944 states. [2019-10-15 01:14:44,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 5237 transitions. [2019-10-15 01:14:44,746 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 5237 transitions. Word has length 298 [2019-10-15 01:14:44,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:44,746 INFO L462 AbstractCegarLoop]: Abstraction has 3944 states and 5237 transitions. [2019-10-15 01:14:44,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-10-15 01:14:44,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 5237 transitions. [2019-10-15 01:14:44,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2019-10-15 01:14:44,754 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:44,755 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:44,755 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:44,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:44,756 INFO L82 PathProgramCache]: Analyzing trace with hash 135293982, now seen corresponding path program 1 times [2019-10-15 01:14:44,756 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:44,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131282674] [2019-10-15 01:14:44,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:44,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:44,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:45,616 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-15 01:14:45,616 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131282674] [2019-10-15 01:14:45,616 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:45,617 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2019-10-15 01:14:45,617 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254862802] [2019-10-15 01:14:45,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-10-15 01:14:45,618 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:45,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-10-15 01:14:45,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1333, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 01:14:45,620 INFO L87 Difference]: Start difference. First operand 3944 states and 5237 transitions. Second operand 38 states. [2019-10-15 01:14:47,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:47,243 INFO L93 Difference]: Finished difference Result 4766 states and 6281 transitions. [2019-10-15 01:14:47,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-15 01:14:47,244 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 291 [2019-10-15 01:14:47,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:47,264 INFO L225 Difference]: With dead ends: 4766 [2019-10-15 01:14:47,264 INFO L226 Difference]: Without dead ends: 4018 [2019-10-15 01:14:47,270 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=141, Invalid=2829, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:14:47,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4018 states. [2019-10-15 01:14:47,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4018 to 4009. [2019-10-15 01:14:47,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4009 states. [2019-10-15 01:14:47,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4009 states to 4009 states and 5318 transitions. [2019-10-15 01:14:47,422 INFO L78 Accepts]: Start accepts. Automaton has 4009 states and 5318 transitions. Word has length 291 [2019-10-15 01:14:47,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:47,423 INFO L462 AbstractCegarLoop]: Abstraction has 4009 states and 5318 transitions. [2019-10-15 01:14:47,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-10-15 01:14:47,423 INFO L276 IsEmpty]: Start isEmpty. Operand 4009 states and 5318 transitions. [2019-10-15 01:14:47,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2019-10-15 01:14:47,430 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:47,431 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:47,431 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:47,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:47,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1199145277, now seen corresponding path program 1 times [2019-10-15 01:14:47,432 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:47,432 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355561292] [2019-10-15 01:14:47,432 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:47,432 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:47,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:48,335 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-15 01:14:48,335 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355561292] [2019-10-15 01:14:48,335 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:48,335 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2019-10-15 01:14:48,335 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234903854] [2019-10-15 01:14:48,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-10-15 01:14:48,336 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:48,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-10-15 01:14:48,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2019-10-15 01:14:48,337 INFO L87 Difference]: Start difference. First operand 4009 states and 5318 transitions. Second operand 40 states. [2019-10-15 01:14:50,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:50,127 INFO L93 Difference]: Finished difference Result 4953 states and 6550 transitions. [2019-10-15 01:14:50,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-10-15 01:14:50,128 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 300 [2019-10-15 01:14:50,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:50,155 INFO L225 Difference]: With dead ends: 4953 [2019-10-15 01:14:50,156 INFO L226 Difference]: Without dead ends: 4083 [2019-10-15 01:14:50,163 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=149, Invalid=3157, Unknown=0, NotChecked=0, Total=3306 [2019-10-15 01:14:50,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2019-10-15 01:14:50,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 4074. [2019-10-15 01:14:50,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4074 states. [2019-10-15 01:14:50,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4074 states to 4074 states and 5399 transitions. [2019-10-15 01:14:50,322 INFO L78 Accepts]: Start accepts. Automaton has 4074 states and 5399 transitions. Word has length 300 [2019-10-15 01:14:50,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:50,323 INFO L462 AbstractCegarLoop]: Abstraction has 4074 states and 5399 transitions. [2019-10-15 01:14:50,323 INFO L463 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-10-15 01:14:50,323 INFO L276 IsEmpty]: Start isEmpty. Operand 4074 states and 5399 transitions. [2019-10-15 01:14:50,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2019-10-15 01:14:50,331 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:50,332 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:50,332 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:50,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:50,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1584122911, now seen corresponding path program 1 times [2019-10-15 01:14:50,332 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:50,333 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303885524] [2019-10-15 01:14:50,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:50,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:50,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:50,579 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-15 01:14:50,579 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303885524] [2019-10-15 01:14:50,579 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:50,579 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:50,580 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453915943] [2019-10-15 01:14:50,580 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:50,580 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:50,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:50,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:50,581 INFO L87 Difference]: Start difference. First operand 4074 states and 5399 transitions. Second operand 3 states. [2019-10-15 01:14:50,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:50,752 INFO L93 Difference]: Finished difference Result 11342 states and 15752 transitions. [2019-10-15 01:14:50,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:50,752 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 291 [2019-10-15 01:14:50,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:50,785 INFO L225 Difference]: With dead ends: 11342 [2019-10-15 01:14:50,786 INFO L226 Difference]: Without dead ends: 7546 [2019-10-15 01:14:50,801 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 [2019-10-15 01:14:50,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7546 states. [2019-10-15 01:14:51,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7546 to 7539. [2019-10-15 01:14:51,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7539 states. [2019-10-15 01:14:51,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7539 states to 7539 states and 10316 transitions. [2019-10-15 01:14:51,203 INFO L78 Accepts]: Start accepts. Automaton has 7539 states and 10316 transitions. Word has length 291 [2019-10-15 01:14:51,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:51,204 INFO L462 AbstractCegarLoop]: Abstraction has 7539 states and 10316 transitions. [2019-10-15 01:14:51,204 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:51,204 INFO L276 IsEmpty]: Start isEmpty. Operand 7539 states and 10316 transitions. [2019-10-15 01:14:51,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2019-10-15 01:14:51,217 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:51,217 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:51,218 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:51,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:51,218 INFO L82 PathProgramCache]: Analyzing trace with hash 989613063, now seen corresponding path program 1 times [2019-10-15 01:14:51,218 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:51,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022700782] [2019-10-15 01:14:51,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:51,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:51,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:51,397 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-15 01:14:51,398 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022700782] [2019-10-15 01:14:51,398 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:51,398 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:51,398 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220487255] [2019-10-15 01:14:51,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:51,399 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:51,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:51,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:51,400 INFO L87 Difference]: Start difference. First operand 7539 states and 10316 transitions. Second operand 3 states. [2019-10-15 01:14:51,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:51,622 INFO L93 Difference]: Finished difference Result 15427 states and 21343 transitions. [2019-10-15 01:14:51,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:51,623 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 295 [2019-10-15 01:14:51,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:51,661 INFO L225 Difference]: With dead ends: 15427 [2019-10-15 01:14:51,661 INFO L226 Difference]: Without dead ends: 8169 [2019-10-15 01:14:51,686 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 [2019-10-15 01:14:51,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8169 states. [2019-10-15 01:14:52,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8169 to 8163. [2019-10-15 01:14:52,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8163 states. [2019-10-15 01:14:52,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8163 states to 8163 states and 11318 transitions. [2019-10-15 01:14:52,040 INFO L78 Accepts]: Start accepts. Automaton has 8163 states and 11318 transitions. Word has length 295 [2019-10-15 01:14:52,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:52,041 INFO L462 AbstractCegarLoop]: Abstraction has 8163 states and 11318 transitions. [2019-10-15 01:14:52,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:52,041 INFO L276 IsEmpty]: Start isEmpty. Operand 8163 states and 11318 transitions. [2019-10-15 01:14:52,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-10-15 01:14:52,058 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:52,058 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:52,059 INFO L410 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:52,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:52,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1828229839, now seen corresponding path program 1 times [2019-10-15 01:14:52,059 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:52,059 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137925738] [2019-10-15 01:14:52,060 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:52,060 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:52,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:52,236 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-15 01:14:52,237 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137925738] [2019-10-15 01:14:52,237 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:52,237 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:52,238 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728294413] [2019-10-15 01:14:52,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:52,238 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:52,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:52,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:52,239 INFO L87 Difference]: Start difference. First operand 8163 states and 11318 transitions. Second operand 3 states. [2019-10-15 01:14:52,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:52,970 INFO L93 Difference]: Finished difference Result 17245 states and 24271 transitions. [2019-10-15 01:14:52,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:52,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 296 [2019-10-15 01:14:52,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:53,005 INFO L225 Difference]: With dead ends: 17245 [2019-10-15 01:14:53,006 INFO L226 Difference]: Without dead ends: 9363 [2019-10-15 01:14:53,028 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 [2019-10-15 01:14:53,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9363 states. [2019-10-15 01:14:53,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9363 to 9357. [2019-10-15 01:14:53,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9357 states. [2019-10-15 01:14:53,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9357 states to 9357 states and 13232 transitions. [2019-10-15 01:14:53,425 INFO L78 Accepts]: Start accepts. Automaton has 9357 states and 13232 transitions. Word has length 296 [2019-10-15 01:14:53,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:53,426 INFO L462 AbstractCegarLoop]: Abstraction has 9357 states and 13232 transitions. [2019-10-15 01:14:53,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:53,426 INFO L276 IsEmpty]: Start isEmpty. Operand 9357 states and 13232 transitions. [2019-10-15 01:14:53,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2019-10-15 01:14:53,449 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:53,449 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:53,449 INFO L410 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:53,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:53,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1872921922, now seen corresponding path program 1 times [2019-10-15 01:14:53,450 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:53,450 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801924560] [2019-10-15 01:14:53,450 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:53,450 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:53,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat