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-f4eb214f-m [2019-10-13 21:15:17,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:15:17,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:15:17,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:15:17,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:15:17,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:15:17,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:15:17,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:15:17,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:15:17,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:15:17,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:15:17,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:15:17,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:15:17,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:15:18,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:15:18,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:15:18,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:15:18,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:15:18,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:15:18,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:15:18,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:15:18,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:15:18,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:15:18,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:15:18,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:15:18,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:15:18,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:15:18,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:15:18,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:15:18,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:15:18,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:15:18,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:15:18,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:15:18,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:15:18,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:15:18,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:15:18,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:15:18,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:15:18,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:15:18,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:15:18,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:15:18,043 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:15:18,078 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:15:18,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:15:18,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:15:18,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:15:18,080 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:15:18,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:15:18,083 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:15:18,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:15:18,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:15:18,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:15:18,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:15:18,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:15:18,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:15:18,084 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:15:18,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:15:18,084 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:15:18,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:15:18,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:15:18,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:15:18,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:15:18,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:15:18,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:15:18,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:15:18,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:15:18,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:15:18,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:15:18,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:15:18,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:15:18,088 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 [2019-10-13 21:15:18,376 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:15:18,389 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:15:18,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:15:18,394 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:15:18,394 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:15:18,395 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_productSimulator.cil.c [2019-10-13 21:15:18,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3cd73cd5/bf2c88b62ff84bbab34c456f17eb0007/FLAGbc2d329bf [2019-10-13 21:15:19,155 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:15:19,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_productSimulator.cil.c [2019-10-13 21:15:19,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3cd73cd5/bf2c88b62ff84bbab34c456f17eb0007/FLAGbc2d329bf [2019-10-13 21:15:19,269 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3cd73cd5/bf2c88b62ff84bbab34c456f17eb0007 [2019-10-13 21:15:19,280 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:15:19,282 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:15:19,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:15:19,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:15:19,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:15:19,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:15:19" (1/1) ... [2019-10-13 21:15:19,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6063a733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:19, skipping insertion in model container [2019-10-13 21:15:19,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:15:19" (1/1) ... [2019-10-13 21:15:19,300 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:15:19,391 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:15:20,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:15:20,252 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:15:20,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:15:20,570 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:15:20,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:20 WrapperNode [2019-10-13 21:15:20,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:15:20,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:15:20,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:15:20,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:15:20,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:20" (1/1) ... [2019-10-13 21:15:20,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:20" (1/1) ... [2019-10-13 21:15:20,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:20" (1/1) ... [2019-10-13 21:15:20,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:20" (1/1) ... [2019-10-13 21:15:20,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:20" (1/1) ... [2019-10-13 21:15:20,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:20" (1/1) ... [2019-10-13 21:15:20,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:20" (1/1) ... [2019-10-13 21:15:20,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:15:20,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:15:20,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:15:20,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:15:20,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:15:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:15:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:15:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:15:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:15:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:15:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:15:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:15:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:15:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:15:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:15:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:15:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:15:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:15:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:15:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:15:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:15:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:15:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:15:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:15:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:15:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:15:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:15:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:15:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:15:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:15:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:15:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:15:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:15:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:15:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:15:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:15:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:15:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:15:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:15:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:15:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:15:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:15:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:15:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:15:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:15:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:15:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:15:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:15:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:15:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:15:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 21:15:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:15:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:15:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:15:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:15:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:15:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:15:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:15:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:15:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:15:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:15:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:15:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:15:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:15:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:15:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:15:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:15:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:15:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:15:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:15:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:15:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:15:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:15:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-13 21:15:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-13 21:15:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-13 21:15:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-13 21:15:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-13 21:15:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-13 21:15:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:15:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:15:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-13 21:15:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-13 21:15:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-13 21:15:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-13 21:15:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-13 21:15:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-13 21:15:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-13 21:15:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-13 21:15:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:15:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:15:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:15:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:15:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:15:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:15:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:15:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:15:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:15:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:15:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:15:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:15:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:15:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:15:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-13 21:15:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-13 21:15:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:15:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-13 21:15:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-13 21:15:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:15:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-13 21:15:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-13 21:15:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:15:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:15:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:15:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:15:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:15:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:15:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:15:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:15:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:15:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:15:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:15:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:15:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:15:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:15:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:15:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:15:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:15:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-13 21:15:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-13 21:15:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-13 21:15:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-13 21:15:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-13 21:15:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-13 21:15:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:15:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-13 21:15:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-13 21:15:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:15:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:15:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:15:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:15:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:15:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:15:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:15:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:15:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:15:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:15:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:15:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:15:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:15:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:15:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:15:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:15:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:15:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:15:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:15:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:15:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:15:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:15:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:15:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:15:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:15:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:15:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:15:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:15:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:15:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:15:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:15:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:15:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:15:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:15:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:15:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:15:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:15:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:15:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:15:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:15:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:15:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:15:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:15:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:15:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:15:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:15:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:15:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:15:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:15:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:15:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:15:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:15:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:15:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:15:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:15:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:15:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:15:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:15:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:15:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:15:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:15:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:15:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:15:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:15:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:15:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:15:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:15:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:15:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:15:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:15:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:15:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:15:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:15:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 21:15:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:15:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:15:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:15:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:15:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:15:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:15:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:15:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:15:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:15:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:15:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:15:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:15:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:15:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:15:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:15:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:15:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:15:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:15:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:15:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:15:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:15:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:15:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:15:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:15:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:15:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:15:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:15:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:15:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:15:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:15:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:15:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:15:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:15:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:15:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:15:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:15:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:15:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:15:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:15:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-13 21:15:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-13 21:15:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-13 21:15:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-13 21:15:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-13 21:15:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-13 21:15:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-13 21:15:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-13 21:15:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-13 21:15:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-13 21:15:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-13 21:15:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-13 21:15:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-13 21:15:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-13 21:15:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:15:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:15:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:15:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:15:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:15:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:15:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:15:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:15:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-13 21:15:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-13 21:15:20,942 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-13 21:15:20,942 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-13 21:15:20,942 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-13 21:15:20,942 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-13 21:15:20,942 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:15:20,942 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-13 21:15:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-13 21:15:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-13 21:15:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-13 21:15:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-13 21:15:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-13 21:15:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-13 21:15:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-13 21:15:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:15:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:15:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:15:23,455 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:15:23,456 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:15:23,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:15:23 BoogieIcfgContainer [2019-10-13 21:15:23,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:15:23,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:15:23,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:15:23,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:15:23,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:15:19" (1/3) ... [2019-10-13 21:15:23,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3daaec95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:15:23, skipping insertion in model container [2019-10-13 21:15:23,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:20" (2/3) ... [2019-10-13 21:15:23,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3daaec95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:15:23, skipping insertion in model container [2019-10-13 21:15:23,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:15:23" (3/3) ... [2019-10-13 21:15:23,470 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_productSimulator.cil.c [2019-10-13 21:15:23,482 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:15:23,493 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:15:23,506 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:15:23,541 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:15:23,541 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:15:23,541 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:15:23,542 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:15:23,542 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:15:23,542 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:15:23,542 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:15:23,542 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:15:23,579 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states. [2019-10-13 21:15:23,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-13 21:15:23,607 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:23,609 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] [2019-10-13 21:15:23,611 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:23,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:23,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1302396452, now seen corresponding path program 1 times [2019-10-13 21:15:23,628 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:23,628 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675556008] [2019-10-13 21:15:23,629 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:23,629 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:23,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:24,432 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:15:24,433 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675556008] [2019-10-13 21:15:24,433 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:24,434 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:15:24,434 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723740022] [2019-10-13 21:15:24,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:15:24,443 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:24,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:15:24,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:15:24,461 INFO L87 Difference]: Start difference. First operand 816 states. Second operand 6 states. [2019-10-13 21:15:24,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:24,791 INFO L93 Difference]: Finished difference Result 1550 states and 2157 transitions. [2019-10-13 21:15:24,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:15:24,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 205 [2019-10-13 21:15:24,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:24,831 INFO L225 Difference]: With dead ends: 1550 [2019-10-13 21:15:24,832 INFO L226 Difference]: Without dead ends: 787 [2019-10-13 21:15:24,844 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:15:24,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2019-10-13 21:15:24,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2019-10-13 21:15:24,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-10-13 21:15:24,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1072 transitions. [2019-10-13 21:15:24,989 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1072 transitions. Word has length 205 [2019-10-13 21:15:24,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:24,991 INFO L462 AbstractCegarLoop]: Abstraction has 787 states and 1072 transitions. [2019-10-13 21:15:24,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:15:24,992 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1072 transitions. [2019-10-13 21:15:24,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-13 21:15:24,999 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:24,999 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] [2019-10-13 21:15:25,000 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:25,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:25,000 INFO L82 PathProgramCache]: Analyzing trace with hash 988197411, now seen corresponding path program 1 times [2019-10-13 21:15:25,001 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:25,001 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124590939] [2019-10-13 21:15:25,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:25,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:25,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:25,259 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:15:25,260 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124590939] [2019-10-13 21:15:25,260 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:25,260 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:15:25,260 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892908910] [2019-10-13 21:15:25,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:15:25,266 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:25,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:15:25,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:15:25,266 INFO L87 Difference]: Start difference. First operand 787 states and 1072 transitions. Second operand 4 states. [2019-10-13 21:15:26,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:26,303 INFO L93 Difference]: Finished difference Result 1531 states and 2109 transitions. [2019-10-13 21:15:26,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:15:26,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 211 [2019-10-13 21:15:26,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:26,310 INFO L225 Difference]: With dead ends: 1531 [2019-10-13 21:15:26,310 INFO L226 Difference]: Without dead ends: 788 [2019-10-13 21:15:26,313 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:15:26,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-10-13 21:15:26,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2019-10-13 21:15:26,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2019-10-13 21:15:26,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1067 transitions. [2019-10-13 21:15:26,359 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1067 transitions. Word has length 211 [2019-10-13 21:15:26,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:26,359 INFO L462 AbstractCegarLoop]: Abstraction has 788 states and 1067 transitions. [2019-10-13 21:15:26,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:15:26,360 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1067 transitions. [2019-10-13 21:15:26,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-13 21:15:26,365 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:26,365 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] [2019-10-13 21:15:26,366 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:26,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:26,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1021601412, now seen corresponding path program 1 times [2019-10-13 21:15:26,367 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:26,367 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937308881] [2019-10-13 21:15:26,367 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:26,367 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:26,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:26,634 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:15:26,634 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937308881] [2019-10-13 21:15:26,635 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:26,635 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:26,635 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790199616] [2019-10-13 21:15:26,637 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:26,637 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:26,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:26,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:26,638 INFO L87 Difference]: Start difference. First operand 788 states and 1067 transitions. Second operand 3 states. [2019-10-13 21:15:26,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:26,863 INFO L93 Difference]: Finished difference Result 2240 states and 3094 transitions. [2019-10-13 21:15:26,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:26,863 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 230 [2019-10-13 21:15:26,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:26,876 INFO L225 Difference]: With dead ends: 2240 [2019-10-13 21:15:26,876 INFO L226 Difference]: Without dead ends: 1497 [2019-10-13 21:15:26,879 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:26,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2019-10-13 21:15:26,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1494. [2019-10-13 21:15:26,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2019-10-13 21:15:26,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2049 transitions. [2019-10-13 21:15:26,984 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2049 transitions. Word has length 230 [2019-10-13 21:15:26,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:26,986 INFO L462 AbstractCegarLoop]: Abstraction has 1494 states and 2049 transitions. [2019-10-13 21:15:26,986 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:26,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2049 transitions. [2019-10-13 21:15:26,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-13 21:15:26,995 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:26,995 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] [2019-10-13 21:15:26,996 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:26,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:26,996 INFO L82 PathProgramCache]: Analyzing trace with hash 83138754, now seen corresponding path program 1 times [2019-10-13 21:15:26,996 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:26,997 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191189421] [2019-10-13 21:15:26,997 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:26,997 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:26,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:27,196 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:15:27,196 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191189421] [2019-10-13 21:15:27,196 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:27,197 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:27,197 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287150260] [2019-10-13 21:15:27,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:27,198 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:27,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:27,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:27,199 INFO L87 Difference]: Start difference. First operand 1494 states and 2049 transitions. Second operand 3 states. [2019-10-13 21:15:27,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:27,328 INFO L93 Difference]: Finished difference Result 1497 states and 2051 transitions. [2019-10-13 21:15:27,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:27,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-10-13 21:15:27,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:27,335 INFO L225 Difference]: With dead ends: 1497 [2019-10-13 21:15:27,335 INFO L226 Difference]: Without dead ends: 789 [2019-10-13 21:15:27,340 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:27,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2019-10-13 21:15:27,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2019-10-13 21:15:27,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2019-10-13 21:15:27,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1061 transitions. [2019-10-13 21:15:27,380 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1061 transitions. Word has length 231 [2019-10-13 21:15:27,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:27,382 INFO L462 AbstractCegarLoop]: Abstraction has 789 states and 1061 transitions. [2019-10-13 21:15:27,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:27,383 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1061 transitions. [2019-10-13 21:15:27,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-13 21:15:27,388 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:27,389 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] [2019-10-13 21:15:27,389 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:27,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:27,390 INFO L82 PathProgramCache]: Analyzing trace with hash -575856261, now seen corresponding path program 1 times [2019-10-13 21:15:27,390 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:27,391 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409819384] [2019-10-13 21:15:27,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:27,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:27,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:27,674 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:15:27,675 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409819384] [2019-10-13 21:15:27,675 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:27,675 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:15:27,676 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847443873] [2019-10-13 21:15:27,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:15:27,677 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:27,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:15:27,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:15:27,679 INFO L87 Difference]: Start difference. First operand 789 states and 1061 transitions. Second operand 4 states. [2019-10-13 21:15:28,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:28,394 INFO L93 Difference]: Finished difference Result 1515 states and 2046 transitions. [2019-10-13 21:15:28,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:15:28,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 245 [2019-10-13 21:15:28,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:28,401 INFO L225 Difference]: With dead ends: 1515 [2019-10-13 21:15:28,401 INFO L226 Difference]: Without dead ends: 795 [2019-10-13 21:15:28,404 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:15:28,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2019-10-13 21:15:28,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 789. [2019-10-13 21:15:28,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2019-10-13 21:15:28,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1046 transitions. [2019-10-13 21:15:28,446 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1046 transitions. Word has length 245 [2019-10-13 21:15:28,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:28,447 INFO L462 AbstractCegarLoop]: Abstraction has 789 states and 1046 transitions. [2019-10-13 21:15:28,447 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:15:28,447 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1046 transitions. [2019-10-13 21:15:28,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-10-13 21:15:28,453 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:28,454 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] [2019-10-13 21:15:28,454 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:28,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:28,454 INFO L82 PathProgramCache]: Analyzing trace with hash 218526341, now seen corresponding path program 1 times [2019-10-13 21:15:28,455 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:28,455 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996728821] [2019-10-13 21:15:28,455 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:28,455 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:28,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:28,708 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 21:15:28,709 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996728821] [2019-10-13 21:15:28,709 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:28,709 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:28,710 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658663015] [2019-10-13 21:15:28,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:28,711 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:28,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:28,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:28,711 INFO L87 Difference]: Start difference. First operand 789 states and 1046 transitions. Second operand 3 states. [2019-10-13 21:15:28,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:28,752 INFO L93 Difference]: Finished difference Result 1225 states and 1607 transitions. [2019-10-13 21:15:28,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:28,752 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2019-10-13 21:15:28,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:28,757 INFO L225 Difference]: With dead ends: 1225 [2019-10-13 21:15:28,758 INFO L226 Difference]: Without dead ends: 792 [2019-10-13 21:15:28,759 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:28,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2019-10-13 21:15:28,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 791. [2019-10-13 21:15:28,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2019-10-13 21:15:28,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1048 transitions. [2019-10-13 21:15:28,798 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1048 transitions. Word has length 272 [2019-10-13 21:15:28,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:28,799 INFO L462 AbstractCegarLoop]: Abstraction has 791 states and 1048 transitions. [2019-10-13 21:15:28,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:28,799 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1048 transitions. [2019-10-13 21:15:28,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2019-10-13 21:15:28,804 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:28,805 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] [2019-10-13 21:15:28,805 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:28,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:28,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1200585663, now seen corresponding path program 1 times [2019-10-13 21:15:28,806 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:28,806 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941621057] [2019-10-13 21:15:28,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:28,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:28,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:28,999 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 21:15:28,999 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941621057] [2019-10-13 21:15:29,000 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:29,000 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:29,000 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378452920] [2019-10-13 21:15:29,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:29,001 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:29,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:29,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:29,002 INFO L87 Difference]: Start difference. First operand 791 states and 1048 transitions. Second operand 3 states. [2019-10-13 21:15:29,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:29,057 INFO L93 Difference]: Finished difference Result 1514 states and 2048 transitions. [2019-10-13 21:15:29,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:29,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 280 [2019-10-13 21:15:29,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:29,063 INFO L225 Difference]: With dead ends: 1514 [2019-10-13 21:15:29,063 INFO L226 Difference]: Without dead ends: 846 [2019-10-13 21:15:29,066 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:29,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2019-10-13 21:15:29,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 845. [2019-10-13 21:15:29,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 845 states. [2019-10-13 21:15:29,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1136 transitions. [2019-10-13 21:15:29,109 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1136 transitions. Word has length 280 [2019-10-13 21:15:29,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:29,110 INFO L462 AbstractCegarLoop]: Abstraction has 845 states and 1136 transitions. [2019-10-13 21:15:29,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:29,110 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1136 transitions. [2019-10-13 21:15:29,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2019-10-13 21:15:29,117 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:29,117 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] [2019-10-13 21:15:29,118 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:29,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:29,118 INFO L82 PathProgramCache]: Analyzing trace with hash -398027279, now seen corresponding path program 1 times [2019-10-13 21:15:29,119 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:29,119 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582454720] [2019-10-13 21:15:29,119 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:29,120 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:29,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:29,491 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-13 21:15:29,491 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582454720] [2019-10-13 21:15:29,491 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:29,492 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:15:29,492 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863987088] [2019-10-13 21:15:29,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:15:29,493 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:29,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:15:29,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:15:29,494 INFO L87 Difference]: Start difference. First operand 845 states and 1136 transitions. Second operand 9 states. [2019-10-13 21:15:29,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:29,822 INFO L93 Difference]: Finished difference Result 1285 states and 1726 transitions. [2019-10-13 21:15:29,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:15:29,822 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 281 [2019-10-13 21:15:29,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:29,833 INFO L225 Difference]: With dead ends: 1285 [2019-10-13 21:15:29,834 INFO L226 Difference]: Without dead ends: 865 [2019-10-13 21:15:29,841 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 [2019-10-13 21:15:29,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2019-10-13 21:15:29,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 849. [2019-10-13 21:15:29,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2019-10-13 21:15:29,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1141 transitions. [2019-10-13 21:15:29,897 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1141 transitions. Word has length 281 [2019-10-13 21:15:29,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:29,902 INFO L462 AbstractCegarLoop]: Abstraction has 849 states and 1141 transitions. [2019-10-13 21:15:29,902 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:15:29,902 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1141 transitions. [2019-10-13 21:15:29,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2019-10-13 21:15:29,913 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:29,914 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] [2019-10-13 21:15:29,914 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:29,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:29,915 INFO L82 PathProgramCache]: Analyzing trace with hash 308695699, now seen corresponding path program 1 times [2019-10-13 21:15:29,915 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:29,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127634312] [2019-10-13 21:15:29,916 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:29,916 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:29,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:30,385 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-13 21:15:30,385 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127634312] [2019-10-13 21:15:30,386 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:30,386 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:15:30,387 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114296713] [2019-10-13 21:15:30,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:15:30,389 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:30,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:15:30,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:15:30,389 INFO L87 Difference]: Start difference. First operand 849 states and 1141 transitions. Second operand 4 states. [2019-10-13 21:15:31,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:31,599 INFO L93 Difference]: Finished difference Result 2414 states and 3318 transitions. [2019-10-13 21:15:31,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:15:31,600 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 288 [2019-10-13 21:15:31,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:31,612 INFO L225 Difference]: With dead ends: 2414 [2019-10-13 21:15:31,612 INFO L226 Difference]: Without dead ends: 1611 [2019-10-13 21:15:31,616 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:15:31,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2019-10-13 21:15:31,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1608. [2019-10-13 21:15:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1608 states. [2019-10-13 21:15:31,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2160 transitions. [2019-10-13 21:15:31,700 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2160 transitions. Word has length 288 [2019-10-13 21:15:31,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:31,701 INFO L462 AbstractCegarLoop]: Abstraction has 1608 states and 2160 transitions. [2019-10-13 21:15:31,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:15:31,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2160 transitions. [2019-10-13 21:15:31,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2019-10-13 21:15:31,709 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:31,710 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] [2019-10-13 21:15:31,710 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:31,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:31,711 INFO L82 PathProgramCache]: Analyzing trace with hash -803792840, now seen corresponding path program 1 times [2019-10-13 21:15:31,711 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:31,711 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709608721] [2019-10-13 21:15:31,711 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:31,711 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:31,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:32,042 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-13 21:15:32,042 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709608721] [2019-10-13 21:15:32,043 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:32,043 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:15:32,043 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6526862] [2019-10-13 21:15:32,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:15:32,044 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:32,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:15:32,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:15:32,045 INFO L87 Difference]: Start difference. First operand 1608 states and 2160 transitions. Second operand 7 states. [2019-10-13 21:15:36,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:36,018 INFO L93 Difference]: Finished difference Result 3296 states and 4396 transitions. [2019-10-13 21:15:36,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:15:36,019 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 288 [2019-10-13 21:15:36,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:36,034 INFO L225 Difference]: With dead ends: 3296 [2019-10-13 21:15:36,034 INFO L226 Difference]: Without dead ends: 2478 [2019-10-13 21:15:36,042 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 [2019-10-13 21:15:36,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2019-10-13 21:15:36,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2463. [2019-10-13 21:15:36,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2463 states. [2019-10-13 21:15:36,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 3274 transitions. [2019-10-13 21:15:36,187 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 3274 transitions. Word has length 288 [2019-10-13 21:15:36,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:36,189 INFO L462 AbstractCegarLoop]: Abstraction has 2463 states and 3274 transitions. [2019-10-13 21:15:36,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:15:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 3274 transitions. [2019-10-13 21:15:36,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2019-10-13 21:15:36,202 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:36,202 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] [2019-10-13 21:15:36,203 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:36,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:36,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1576359952, now seen corresponding path program 1 times [2019-10-13 21:15:36,203 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:36,204 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451447209] [2019-10-13 21:15:36,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:36,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:36,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:37,167 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-13 21:15:37,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451447209] [2019-10-13 21:15:37,167 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:37,168 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2019-10-13 21:15:37,168 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499650311] [2019-10-13 21:15:37,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-10-13 21:15:37,169 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:37,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-10-13 21:15:37,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=1191, Unknown=0, NotChecked=0, Total=1260 [2019-10-13 21:15:37,170 INFO L87 Difference]: Start difference. First operand 2463 states and 3274 transitions. Second operand 36 states. [2019-10-13 21:15:38,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:38,554 INFO L93 Difference]: Finished difference Result 3431 states and 4533 transitions. [2019-10-13 21:15:38,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-10-13 21:15:38,555 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 289 [2019-10-13 21:15:38,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:38,573 INFO L225 Difference]: With dead ends: 3431 [2019-10-13 21:15:38,573 INFO L226 Difference]: Without dead ends: 2605 [2019-10-13 21:15:38,578 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 [2019-10-13 21:15:38,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2019-10-13 21:15:38,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2600. [2019-10-13 21:15:38,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2600 states. [2019-10-13 21:15:38,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 3437 transitions. [2019-10-13 21:15:38,709 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 3437 transitions. Word has length 289 [2019-10-13 21:15:38,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:38,710 INFO L462 AbstractCegarLoop]: Abstraction has 2600 states and 3437 transitions. [2019-10-13 21:15:38,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-10-13 21:15:38,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 3437 transitions. [2019-10-13 21:15:38,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-10-13 21:15:38,722 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:38,722 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] [2019-10-13 21:15:38,722 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:38,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:38,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1491044311, now seen corresponding path program 1 times [2019-10-13 21:15:38,723 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:38,723 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200828113] [2019-10-13 21:15:38,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:38,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:38,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:38,935 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-10-13 21:15:38,935 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200828113] [2019-10-13 21:15:38,936 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:38,936 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:38,936 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745619436] [2019-10-13 21:15:38,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:38,937 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:38,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:38,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:38,937 INFO L87 Difference]: Start difference. First operand 2600 states and 3437 transitions. Second operand 3 states. [2019-10-13 21:15:39,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:39,140 INFO L93 Difference]: Finished difference Result 5416 states and 7190 transitions. [2019-10-13 21:15:39,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:39,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 298 [2019-10-13 21:15:39,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:39,164 INFO L225 Difference]: With dead ends: 5416 [2019-10-13 21:15:39,164 INFO L226 Difference]: Without dead ends: 3734 [2019-10-13 21:15:39,171 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:39,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2019-10-13 21:15:39,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 3731. [2019-10-13 21:15:39,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3731 states. [2019-10-13 21:15:39,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 4959 transitions. [2019-10-13 21:15:39,356 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 4959 transitions. Word has length 298 [2019-10-13 21:15:39,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:39,357 INFO L462 AbstractCegarLoop]: Abstraction has 3731 states and 4959 transitions. [2019-10-13 21:15:39,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:39,357 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 4959 transitions. [2019-10-13 21:15:39,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-10-13 21:15:39,366 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:39,366 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] [2019-10-13 21:15:39,366 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:39,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:39,367 INFO L82 PathProgramCache]: Analyzing trace with hash 698994677, now seen corresponding path program 1 times [2019-10-13 21:15:39,367 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:39,367 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353110956] [2019-10-13 21:15:39,368 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:39,368 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:39,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:40,308 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-13 21:15:40,308 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353110956] [2019-10-13 21:15:40,308 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:40,309 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2019-10-13 21:15:40,309 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184093116] [2019-10-13 21:15:40,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-10-13 21:15:40,310 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:40,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-10-13 21:15:40,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1333, Unknown=0, NotChecked=0, Total=1406 [2019-10-13 21:15:40,311 INFO L87 Difference]: Start difference. First operand 3731 states and 4959 transitions. Second operand 38 states. [2019-10-13 21:15:42,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:42,088 INFO L93 Difference]: Finished difference Result 4705 states and 6265 transitions. [2019-10-13 21:15:42,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-13 21:15:42,089 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 298 [2019-10-13 21:15:42,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:42,115 INFO L225 Difference]: With dead ends: 4705 [2019-10-13 21:15:42,115 INFO L226 Difference]: Without dead ends: 3965 [2019-10-13 21:15:42,121 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 [2019-10-13 21:15:42,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2019-10-13 21:15:42,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 3944. [2019-10-13 21:15:42,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3944 states. [2019-10-13 21:15:42,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 5237 transitions. [2019-10-13 21:15:42,330 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 5237 transitions. Word has length 298 [2019-10-13 21:15:42,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:42,331 INFO L462 AbstractCegarLoop]: Abstraction has 3944 states and 5237 transitions. [2019-10-13 21:15:42,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-10-13 21:15:42,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 5237 transitions. [2019-10-13 21:15:42,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2019-10-13 21:15:42,341 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:42,341 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] [2019-10-13 21:15:42,342 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:42,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:42,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1199145277, now seen corresponding path program 1 times [2019-10-13 21:15:42,342 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:42,343 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626838304] [2019-10-13 21:15:42,343 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:42,343 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:42,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:43,238 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-13 21:15:43,239 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626838304] [2019-10-13 21:15:43,239 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:43,239 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2019-10-13 21:15:43,239 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697764212] [2019-10-13 21:15:43,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-10-13 21:15:43,240 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:43,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-10-13 21:15:43,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2019-10-13 21:15:43,241 INFO L87 Difference]: Start difference. First operand 3944 states and 5237 transitions. Second operand 40 states. [2019-10-13 21:15:45,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:45,097 INFO L93 Difference]: Finished difference Result 4916 states and 6499 transitions. [2019-10-13 21:15:45,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-10-13 21:15:45,097 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 300 [2019-10-13 21:15:45,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:45,120 INFO L225 Difference]: With dead ends: 4916 [2019-10-13 21:15:45,120 INFO L226 Difference]: Without dead ends: 4018 [2019-10-13 21:15:45,126 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 [2019-10-13 21:15:45,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4018 states. [2019-10-13 21:15:45,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4018 to 4009. [2019-10-13 21:15:45,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4009 states. [2019-10-13 21:15:45,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4009 states to 4009 states and 5318 transitions. [2019-10-13 21:15:45,288 INFO L78 Accepts]: Start accepts. Automaton has 4009 states and 5318 transitions. Word has length 300 [2019-10-13 21:15:45,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:45,289 INFO L462 AbstractCegarLoop]: Abstraction has 4009 states and 5318 transitions. [2019-10-13 21:15:45,289 INFO L463 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-10-13 21:15:45,289 INFO L276 IsEmpty]: Start isEmpty. Operand 4009 states and 5318 transitions. [2019-10-13 21:15:45,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2019-10-13 21:15:45,300 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:45,300 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] [2019-10-13 21:15:45,300 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:45,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:45,301 INFO L82 PathProgramCache]: Analyzing trace with hash 249683652, now seen corresponding path program 1 times [2019-10-13 21:15:45,301 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:45,301 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083121054] [2019-10-13 21:15:45,301 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:45,303 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:45,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:45,529 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 21:15:45,529 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083121054] [2019-10-13 21:15:45,529 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:45,529 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:45,530 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739159119] [2019-10-13 21:15:45,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:45,531 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:45,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:45,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:45,531 INFO L87 Difference]: Start difference. First operand 4009 states and 5318 transitions. Second operand 3 states. [2019-10-13 21:15:45,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:45,767 INFO L93 Difference]: Finished difference Result 11186 states and 15552 transitions. [2019-10-13 21:15:45,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:45,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2019-10-13 21:15:45,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:45,815 INFO L225 Difference]: With dead ends: 11186 [2019-10-13 21:15:45,815 INFO L226 Difference]: Without dead ends: 7455 [2019-10-13 21:15:45,833 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:45,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7455 states. [2019-10-13 21:15:46,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7455 to 7448. [2019-10-13 21:15:46,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7448 states. [2019-10-13 21:15:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7448 states to 7448 states and 10201 transitions. [2019-10-13 21:15:46,162 INFO L78 Accepts]: Start accepts. Automaton has 7448 states and 10201 transitions. Word has length 300 [2019-10-13 21:15:46,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:46,163 INFO L462 AbstractCegarLoop]: Abstraction has 7448 states and 10201 transitions. [2019-10-13 21:15:46,163 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:46,163 INFO L276 IsEmpty]: Start isEmpty. Operand 7448 states and 10201 transitions. [2019-10-13 21:15:46,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2019-10-13 21:15:46,180 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:46,180 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, 1, 1, 1, 1] [2019-10-13 21:15:46,181 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:46,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:46,181 INFO L82 PathProgramCache]: Analyzing trace with hash 637453276, now seen corresponding path program 1 times [2019-10-13 21:15:46,181 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:46,182 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627829445] [2019-10-13 21:15:46,182 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:46,182 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:46,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:46,981 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 21:15:46,990 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627829445] [2019-10-13 21:15:46,991 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:46,991 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:46,992 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878080467] [2019-10-13 21:15:46,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:46,993 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:46,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:46,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:46,999 INFO L87 Difference]: Start difference. First operand 7448 states and 10201 transitions. Second operand 3 states. [2019-10-13 21:15:47,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:47,251 INFO L93 Difference]: Finished difference Result 15245 states and 21113 transitions. [2019-10-13 21:15:47,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:47,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 304 [2019-10-13 21:15:47,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:47,297 INFO L225 Difference]: With dead ends: 15245 [2019-10-13 21:15:47,297 INFO L226 Difference]: Without dead ends: 8078 [2019-10-13 21:15:47,323 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:47,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8078 states. [2019-10-13 21:15:47,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8078 to 8072. [2019-10-13 21:15:47,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8072 states. [2019-10-13 21:15:47,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8072 states to 8072 states and 11203 transitions. [2019-10-13 21:15:47,650 INFO L78 Accepts]: Start accepts. Automaton has 8072 states and 11203 transitions. Word has length 304 [2019-10-13 21:15:47,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:47,651 INFO L462 AbstractCegarLoop]: Abstraction has 8072 states and 11203 transitions. [2019-10-13 21:15:47,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:47,651 INFO L276 IsEmpty]: Start isEmpty. Operand 8072 states and 11203 transitions. [2019-10-13 21:15:47,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2019-10-13 21:15:47,669 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:47,669 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, 1, 1, 1, 1, 1] [2019-10-13 21:15:47,670 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:47,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:47,670 INFO L82 PathProgramCache]: Analyzing trace with hash 905269746, now seen corresponding path program 1 times [2019-10-13 21:15:47,670 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:47,670 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73591958] [2019-10-13 21:15:47,671 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:47,671 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:47,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:47,852 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 21:15:47,853 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73591958] [2019-10-13 21:15:47,853 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:47,853 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:47,853 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338197540] [2019-10-13 21:15:47,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:47,854 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:47,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:47,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:47,855 INFO L87 Difference]: Start difference. First operand 8072 states and 11203 transitions. Second operand 3 states. [2019-10-13 21:15:48,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:48,205 INFO L93 Difference]: Finished difference Result 17063 states and 24041 transitions. [2019-10-13 21:15:48,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:48,205 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 305 [2019-10-13 21:15:48,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:48,238 INFO L225 Difference]: With dead ends: 17063 [2019-10-13 21:15:48,238 INFO L226 Difference]: Without dead ends: 9272 [2019-10-13 21:15:48,259 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:48,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9272 states. [2019-10-13 21:15:48,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9272 to 9266. [2019-10-13 21:15:48,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9266 states. [2019-10-13 21:15:48,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9266 states to 9266 states and 13117 transitions. [2019-10-13 21:15:48,624 INFO L78 Accepts]: Start accepts. Automaton has 9266 states and 13117 transitions. Word has length 305 [2019-10-13 21:15:48,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:48,625 INFO L462 AbstractCegarLoop]: Abstraction has 9266 states and 13117 transitions. [2019-10-13 21:15:48,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:48,625 INFO L276 IsEmpty]: Start isEmpty. Operand 9266 states and 13117 transitions. [2019-10-13 21:15:48,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2019-10-13 21:15:48,648 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:48,648 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:15:48,649 INFO L410 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:48,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:48,649 INFO L82 PathProgramCache]: Analyzing trace with hash 546386693, now seen corresponding path program 1 times [2019-10-13 21:15:48,649 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:48,649 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739700156] [2019-10-13 21:15:48,650 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:48,650 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:48,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:49,479 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-13 21:15:49,479 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739700156] [2019-10-13 21:15:49,479 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:49,480 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2019-10-13 21:15:49,480 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393411729] [2019-10-13 21:15:49,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-10-13 21:15:49,481 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:49,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-10-13 21:15:49,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2019-10-13 21:15:49,482 INFO L87 Difference]: Start difference. First operand 9266 states and 13117 transitions. Second operand 40 states.