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_spec6_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:15,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:15,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:15,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:15,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:15,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:15,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:15,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:15,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:15,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:15,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:15,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:15,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:15,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:15,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:15,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:15,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:15,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:15,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:15,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:15,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:15,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:15,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:15,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:15,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:15,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:15,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:15,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:15,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:15,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:15,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:15,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:15,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:15,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:15,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:15,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:15,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:15,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:15,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:15,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:15,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:15,682 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:16:15,705 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:15,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:15,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:15,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:15,708 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:15,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:15,708 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:15,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:15,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:15,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:15,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:15,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:15,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:15,711 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:15,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:15,712 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:15,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:15,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:15,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:15,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:15,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:15,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:15,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:15,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:15,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:15,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:15,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:15,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:15,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:16:15,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:16,007 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:16,011 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:16,012 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:16,012 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:16,013 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product30.cil.c [2019-10-15 01:16:16,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9d6e7cc1/f9dfffc0f9e14af9aef1b026e05a54b7/FLAGeb9f404bb [2019-10-15 01:16:16,779 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:16,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product30.cil.c [2019-10-15 01:16:16,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9d6e7cc1/f9dfffc0f9e14af9aef1b026e05a54b7/FLAGeb9f404bb [2019-10-15 01:16:16,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9d6e7cc1/f9dfffc0f9e14af9aef1b026e05a54b7 [2019-10-15 01:16:16,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:16,976 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:16,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:16,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:16,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:16,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:16" (1/1) ... [2019-10-15 01:16:16,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29914bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:16, skipping insertion in model container [2019-10-15 01:16:16,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:16" (1/1) ... [2019-10-15 01:16:16,993 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:17,064 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:17,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:17,794 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:17,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:18,029 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:18,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18 WrapperNode [2019-10-15 01:16:18,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:18,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:18,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:18,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:18,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:18,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:18,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:18,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:18,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:18,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:18,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:18,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:18,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:18,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:18,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:18,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:18,357 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:18,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:18,357 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:18,357 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:18,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:18,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:18,358 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:18,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:18,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:18,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:18,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:18,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:18,359 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:18,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:18,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:18,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:18,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:18,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:18,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:18,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:18,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:18,361 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:18,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:18,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:18,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:18,362 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:18,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:18,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:18,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:18,363 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:18,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:18,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:18,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:18,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:18,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:18,363 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:18,364 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:18,364 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:18,364 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:16:18,364 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:18,364 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:18,365 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:18,365 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:16:18,365 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:16:18,365 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:18,365 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:18,365 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:18,365 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:18,366 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:18,367 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:18,367 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:18,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:18,367 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:18,367 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:16:18,368 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:16:18,368 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:16:18,368 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:18,369 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-15 01:16:18,369 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:16:18,370 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:18,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:18,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:18,371 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:18,371 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:18,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:18,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:18,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:18,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:18,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:18,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:18,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:18,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:18,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:16:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:16:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:18,389 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:18,389 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:18,389 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:18,389 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:18,389 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:18,389 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:18,389 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:16:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:16:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:16:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:16:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:16:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:16:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:18,395 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-15 01:16:18,395 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:16:18,395 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:18,395 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:18,395 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:18,395 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:18,399 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:18,399 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:18,399 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:18,399 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:18,399 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:18,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:20,668 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:20,669 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:20,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:20 BoogieIcfgContainer [2019-10-15 01:16:20,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:20,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:20,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:20,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:20,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:16" (1/3) ... [2019-10-15 01:16:20,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0977b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:20, skipping insertion in model container [2019-10-15 01:16:20,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (2/3) ... [2019-10-15 01:16:20,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0977b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:20, skipping insertion in model container [2019-10-15 01:16:20,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:20" (3/3) ... [2019-10-15 01:16:20,682 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product30.cil.c [2019-10-15 01:16:20,695 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:20,709 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:20,721 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:20,767 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:20,771 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:20,772 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:20,772 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:20,772 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:20,772 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:20,772 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:20,772 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:20,815 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states. [2019-10-15 01:16:20,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-15 01:16:20,861 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:20,863 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:20,868 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:20,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:20,875 INFO L82 PathProgramCache]: Analyzing trace with hash 2032051797, now seen corresponding path program 1 times [2019-10-15 01:16:20,885 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:20,885 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130531637] [2019-10-15 01:16:20,886 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:20,886 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:20,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:21,555 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:21,555 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130531637] [2019-10-15 01:16:21,556 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:21,556 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:16:21,557 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355129047] [2019-10-15 01:16:21,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:16:21,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:21,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:16:21,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:21,582 INFO L87 Difference]: Start difference. First operand 552 states. Second operand 2 states. [2019-10-15 01:16:21,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:21,663 INFO L93 Difference]: Finished difference Result 790 states and 1043 transitions. [2019-10-15 01:16:21,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:16:21,665 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 189 [2019-10-15 01:16:21,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:21,712 INFO L225 Difference]: With dead ends: 790 [2019-10-15 01:16:21,712 INFO L226 Difference]: Without dead ends: 501 [2019-10-15 01:16:21,724 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:21,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-10-15 01:16:21,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2019-10-15 01:16:21,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2019-10-15 01:16:21,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 665 transitions. [2019-10-15 01:16:21,854 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 665 transitions. Word has length 189 [2019-10-15 01:16:21,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:21,858 INFO L462 AbstractCegarLoop]: Abstraction has 501 states and 665 transitions. [2019-10-15 01:16:21,858 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:16:21,858 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 665 transitions. [2019-10-15 01:16:21,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 01:16:21,868 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:21,868 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:21,869 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:21,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:21,870 INFO L82 PathProgramCache]: Analyzing trace with hash -990311382, now seen corresponding path program 1 times [2019-10-15 01:16:21,870 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:21,871 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819586007] [2019-10-15 01:16:21,871 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:21,871 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:21,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:22,248 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:22,248 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819586007] [2019-10-15 01:16:22,249 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:22,249 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:22,249 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319529269] [2019-10-15 01:16:22,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:22,256 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:22,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:22,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:22,257 INFO L87 Difference]: Start difference. First operand 501 states and 665 transitions. Second operand 3 states. [2019-10-15 01:16:22,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:22,335 INFO L93 Difference]: Finished difference Result 773 states and 1010 transitions. [2019-10-15 01:16:22,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:22,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-15 01:16:22,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:22,340 INFO L225 Difference]: With dead ends: 773 [2019-10-15 01:16:22,341 INFO L226 Difference]: Without dead ends: 504 [2019-10-15 01:16:22,343 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:22,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2019-10-15 01:16:22,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 503. [2019-10-15 01:16:22,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2019-10-15 01:16:22,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 667 transitions. [2019-10-15 01:16:22,372 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 667 transitions. Word has length 190 [2019-10-15 01:16:22,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:22,373 INFO L462 AbstractCegarLoop]: Abstraction has 503 states and 667 transitions. [2019-10-15 01:16:22,373 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:22,373 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 667 transitions. [2019-10-15 01:16:22,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:16:22,377 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:22,378 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:22,378 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:22,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:22,378 INFO L82 PathProgramCache]: Analyzing trace with hash -733983558, now seen corresponding path program 1 times [2019-10-15 01:16:22,378 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:22,379 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863921582] [2019-10-15 01:16:22,379 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,379 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:22,583 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:22,584 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863921582] [2019-10-15 01:16:22,584 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:22,584 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:22,584 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949526117] [2019-10-15 01:16:22,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:22,589 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:22,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:22,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:22,590 INFO L87 Difference]: Start difference. First operand 503 states and 667 transitions. Second operand 3 states. [2019-10-15 01:16:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:22,639 INFO L93 Difference]: Finished difference Result 982 states and 1332 transitions. [2019-10-15 01:16:22,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:22,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2019-10-15 01:16:22,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:22,646 INFO L225 Difference]: With dead ends: 982 [2019-10-15 01:16:22,646 INFO L226 Difference]: Without dead ends: 544 [2019-10-15 01:16:22,649 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:22,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2019-10-15 01:16:22,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 543. [2019-10-15 01:16:22,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2019-10-15 01:16:22,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 736 transitions. [2019-10-15 01:16:22,695 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 736 transitions. Word has length 200 [2019-10-15 01:16:22,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:22,695 INFO L462 AbstractCegarLoop]: Abstraction has 543 states and 736 transitions. [2019-10-15 01:16:22,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:22,696 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 736 transitions. [2019-10-15 01:16:22,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:16:22,704 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:22,705 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:22,705 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:22,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:22,705 INFO L82 PathProgramCache]: Analyzing trace with hash 976247459, now seen corresponding path program 1 times [2019-10-15 01:16:22,706 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:22,706 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391362222] [2019-10-15 01:16:22,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:22,944 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:22,945 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391362222] [2019-10-15 01:16:22,945 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:22,946 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:22,946 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863712652] [2019-10-15 01:16:22,947 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:22,947 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:22,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:22,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:22,948 INFO L87 Difference]: Start difference. First operand 543 states and 736 transitions. Second operand 3 states. [2019-10-15 01:16:22,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:22,992 INFO L93 Difference]: Finished difference Result 1099 states and 1534 transitions. [2019-10-15 01:16:22,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:22,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2019-10-15 01:16:22,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:22,997 INFO L225 Difference]: With dead ends: 1099 [2019-10-15 01:16:22,998 INFO L226 Difference]: Without dead ends: 621 [2019-10-15 01:16:23,000 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:23,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2019-10-15 01:16:23,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 620. [2019-10-15 01:16:23,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-10-15 01:16:23,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 868 transitions. [2019-10-15 01:16:23,032 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 868 transitions. Word has length 201 [2019-10-15 01:16:23,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:23,032 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 868 transitions. [2019-10-15 01:16:23,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 868 transitions. [2019-10-15 01:16:23,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 01:16:23,040 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:23,040 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:23,041 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:23,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:23,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1623926726, now seen corresponding path program 1 times [2019-10-15 01:16:23,042 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:23,042 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691125305] [2019-10-15 01:16:23,042 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,043 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:23,278 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:23,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691125305] [2019-10-15 01:16:23,279 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:23,279 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:23,280 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331598375] [2019-10-15 01:16:23,280 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:23,281 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:23,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:23,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:23,282 INFO L87 Difference]: Start difference. First operand 620 states and 868 transitions. Second operand 3 states. [2019-10-15 01:16:23,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:23,331 INFO L93 Difference]: Finished difference Result 1324 states and 1920 transitions. [2019-10-15 01:16:23,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:23,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-10-15 01:16:23,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:23,339 INFO L225 Difference]: With dead ends: 1324 [2019-10-15 01:16:23,339 INFO L226 Difference]: Without dead ends: 769 [2019-10-15 01:16:23,343 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:23,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2019-10-15 01:16:23,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 768. [2019-10-15 01:16:23,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-10-15 01:16:23,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1120 transitions. [2019-10-15 01:16:23,381 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1120 transitions. Word has length 202 [2019-10-15 01:16:23,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:23,381 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 1120 transitions. [2019-10-15 01:16:23,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:23,382 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1120 transitions. [2019-10-15 01:16:23,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:16:23,388 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:23,389 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:23,389 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:23,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:23,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1460269859, now seen corresponding path program 1 times [2019-10-15 01:16:23,390 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:23,391 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306109518] [2019-10-15 01:16:23,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:23,682 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:23,682 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306109518] [2019-10-15 01:16:23,683 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:23,683 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:23,683 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749139082] [2019-10-15 01:16:23,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:23,684 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:23,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:23,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:23,685 INFO L87 Difference]: Start difference. First operand 768 states and 1120 transitions. Second operand 3 states. [2019-10-15 01:16:23,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:23,732 INFO L93 Difference]: Finished difference Result 1756 states and 2656 transitions. [2019-10-15 01:16:23,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:23,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2019-10-15 01:16:23,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:23,740 INFO L225 Difference]: With dead ends: 1756 [2019-10-15 01:16:23,740 INFO L226 Difference]: Without dead ends: 1053 [2019-10-15 01:16:23,743 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:23,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2019-10-15 01:16:23,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1052. [2019-10-15 01:16:23,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2019-10-15 01:16:23,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1600 transitions. [2019-10-15 01:16:23,786 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1600 transitions. Word has length 203 [2019-10-15 01:16:23,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:23,787 INFO L462 AbstractCegarLoop]: Abstraction has 1052 states and 1600 transitions. [2019-10-15 01:16:23,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:23,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1600 transitions. [2019-10-15 01:16:23,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-15 01:16:23,794 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:23,794 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:23,795 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:23,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:23,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1034024059, now seen corresponding path program 1 times [2019-10-15 01:16:23,795 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:23,796 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777896958] [2019-10-15 01:16:23,796 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,796 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:24,104 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:24,104 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777896958] [2019-10-15 01:16:24,105 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:24,105 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:24,105 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671543068] [2019-10-15 01:16:24,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:24,106 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:24,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:24,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:24,107 INFO L87 Difference]: Start difference. First operand 1052 states and 1600 transitions. Second operand 11 states. [2019-10-15 01:16:29,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:29,667 INFO L93 Difference]: Finished difference Result 3156 states and 4414 transitions. [2019-10-15 01:16:29,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-15 01:16:29,668 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-10-15 01:16:29,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:29,685 INFO L225 Difference]: With dead ends: 3156 [2019-10-15 01:16:29,686 INFO L226 Difference]: Without dead ends: 2577 [2019-10-15 01:16:29,689 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:16:29,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2019-10-15 01:16:29,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 2562. [2019-10-15 01:16:29,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2562 states. [2019-10-15 01:16:29,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2562 states to 2562 states and 3558 transitions. [2019-10-15 01:16:29,824 INFO L78 Accepts]: Start accepts. Automaton has 2562 states and 3558 transitions. Word has length 206 [2019-10-15 01:16:29,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:29,825 INFO L462 AbstractCegarLoop]: Abstraction has 2562 states and 3558 transitions. [2019-10-15 01:16:29,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:29,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2562 states and 3558 transitions. [2019-10-15 01:16:29,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 01:16:29,833 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:29,834 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:29,835 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:29,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:29,835 INFO L82 PathProgramCache]: Analyzing trace with hash -587031347, now seen corresponding path program 1 times [2019-10-15 01:16:29,836 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:29,836 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802778404] [2019-10-15 01:16:29,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:29,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:29,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:30,221 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:30,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802778404] [2019-10-15 01:16:30,222 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:30,223 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:16:30,223 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646461266] [2019-10-15 01:16:30,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:16:30,225 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:30,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:16:30,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:16:30,226 INFO L87 Difference]: Start difference. First operand 2562 states and 3558 transitions. Second operand 18 states. [2019-10-15 01:16:30,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:30,837 INFO L93 Difference]: Finished difference Result 4091 states and 5559 transitions. [2019-10-15 01:16:30,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:16:30,838 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 207 [2019-10-15 01:16:30,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:30,853 INFO L225 Difference]: With dead ends: 4091 [2019-10-15 01:16:30,854 INFO L226 Difference]: Without dead ends: 2182 [2019-10-15 01:16:30,860 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:16:30,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2019-10-15 01:16:30,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 2142. [2019-10-15 01:16:30,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2142 states. [2019-10-15 01:16:30,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 3001 transitions. [2019-10-15 01:16:30,964 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 3001 transitions. Word has length 207 [2019-10-15 01:16:30,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:30,965 INFO L462 AbstractCegarLoop]: Abstraction has 2142 states and 3001 transitions. [2019-10-15 01:16:30,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:16:30,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 3001 transitions. [2019-10-15 01:16:30,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-15 01:16:30,972 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:30,972 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:30,973 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:30,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:30,973 INFO L82 PathProgramCache]: Analyzing trace with hash -978410275, now seen corresponding path program 1 times [2019-10-15 01:16:30,973 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:30,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780873649] [2019-10-15 01:16:30,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:30,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:30,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:31,200 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780873649] [2019-10-15 01:16:31,202 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:31,202 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:16:31,203 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787470111] [2019-10-15 01:16:31,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:16:31,204 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:31,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:16:31,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:16:31,205 INFO L87 Difference]: Start difference. First operand 2142 states and 3001 transitions. Second operand 6 states. [2019-10-15 01:16:31,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:31,909 INFO L93 Difference]: Finished difference Result 5566 states and 7724 transitions. [2019-10-15 01:16:31,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:16:31,910 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2019-10-15 01:16:31,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:31,941 INFO L225 Difference]: With dead ends: 5566 [2019-10-15 01:16:31,941 INFO L226 Difference]: Without dead ends: 4275 [2019-10-15 01:16:31,951 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:16:31,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2019-10-15 01:16:32,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 4204. [2019-10-15 01:16:32,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4204 states. [2019-10-15 01:16:32,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4204 states to 4204 states and 5979 transitions. [2019-10-15 01:16:32,260 INFO L78 Accepts]: Start accepts. Automaton has 4204 states and 5979 transitions. Word has length 216 [2019-10-15 01:16:32,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:32,261 INFO L462 AbstractCegarLoop]: Abstraction has 4204 states and 5979 transitions. [2019-10-15 01:16:32,261 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:16:32,261 INFO L276 IsEmpty]: Start isEmpty. Operand 4204 states and 5979 transitions. [2019-10-15 01:16:32,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-15 01:16:32,278 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:32,278 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:32,278 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:32,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:32,279 INFO L82 PathProgramCache]: Analyzing trace with hash 422554938, now seen corresponding path program 1 times [2019-10-15 01:16:32,279 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:32,279 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737030144] [2019-10-15 01:16:32,279 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:32,280 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:32,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:32,560 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:32,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737030144] [2019-10-15 01:16:32,562 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:32,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:32,562 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396554190] [2019-10-15 01:16:32,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:32,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:32,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:32,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:32,565 INFO L87 Difference]: Start difference. First operand 4204 states and 5979 transitions. Second operand 11 states. [2019-10-15 01:16:33,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:33,015 INFO L93 Difference]: Finished difference Result 6809 states and 9318 transitions. [2019-10-15 01:16:33,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:16:33,015 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 217 [2019-10-15 01:16:33,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:33,047 INFO L225 Difference]: With dead ends: 6809 [2019-10-15 01:16:33,047 INFO L226 Difference]: Without dead ends: 4222 [2019-10-15 01:16:33,064 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:16:33,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2019-10-15 01:16:33,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 4192. [2019-10-15 01:16:33,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4192 states. [2019-10-15 01:16:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4192 states to 4192 states and 5953 transitions. [2019-10-15 01:16:33,267 INFO L78 Accepts]: Start accepts. Automaton has 4192 states and 5953 transitions. Word has length 217 [2019-10-15 01:16:33,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:33,268 INFO L462 AbstractCegarLoop]: Abstraction has 4192 states and 5953 transitions. [2019-10-15 01:16:33,268 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:33,269 INFO L276 IsEmpty]: Start isEmpty. Operand 4192 states and 5953 transitions. [2019-10-15 01:16:33,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-15 01:16:33,282 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:33,282 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:33,282 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:33,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:33,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1009331057, now seen corresponding path program 1 times [2019-10-15 01:16:33,283 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:33,283 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371099712] [2019-10-15 01:16:33,283 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:33,284 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:33,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:33,584 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:33,585 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371099712] [2019-10-15 01:16:33,585 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:33,585 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:16:33,586 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300833526] [2019-10-15 01:16:33,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:16:33,586 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:33,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:16:33,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:16:33,587 INFO L87 Difference]: Start difference. First operand 4192 states and 5953 transitions. Second operand 5 states. [2019-10-15 01:16:34,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:34,864 INFO L93 Difference]: Finished difference Result 12987 states and 18128 transitions. [2019-10-15 01:16:34,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:34,864 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2019-10-15 01:16:34,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:34,937 INFO L225 Difference]: With dead ends: 12987 [2019-10-15 01:16:34,938 INFO L226 Difference]: Without dead ends: 9560 [2019-10-15 01:16:34,953 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:16:34,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9560 states. [2019-10-15 01:16:35,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9560 to 9280. [2019-10-15 01:16:35,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9280 states. [2019-10-15 01:16:35,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9280 states to 9280 states and 13295 transitions. [2019-10-15 01:16:35,445 INFO L78 Accepts]: Start accepts. Automaton has 9280 states and 13295 transitions. Word has length 217 [2019-10-15 01:16:35,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:35,446 INFO L462 AbstractCegarLoop]: Abstraction has 9280 states and 13295 transitions. [2019-10-15 01:16:35,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:16:35,446 INFO L276 IsEmpty]: Start isEmpty. Operand 9280 states and 13295 transitions. [2019-10-15 01:16:35,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-10-15 01:16:35,482 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:35,483 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:35,483 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:35,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:35,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1393309593, now seen corresponding path program 1 times [2019-10-15 01:16:35,484 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:35,484 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419883699] [2019-10-15 01:16:35,485 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:35,485 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:35,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:35,829 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:16:35,829 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419883699] [2019-10-15 01:16:35,830 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:35,830 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:35,830 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280015419] [2019-10-15 01:16:35,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:35,831 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:35,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:35,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:35,831 INFO L87 Difference]: Start difference. First operand 9280 states and 13295 transitions. Second operand 8 states. [2019-10-15 01:16:40,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:40,440 INFO L93 Difference]: Finished difference Result 28206 states and 42883 transitions. [2019-10-15 01:16:40,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:40,440 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2019-10-15 01:16:40,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:40,553 INFO L225 Difference]: With dead ends: 28206 [2019-10-15 01:16:40,553 INFO L226 Difference]: Without dead ends: 18991 [2019-10-15 01:16:40,599 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:40,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18991 states. [2019-10-15 01:16:41,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18991 to 12568. [2019-10-15 01:16:41,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12568 states. [2019-10-15 01:16:41,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12568 states to 12568 states and 20215 transitions. [2019-10-15 01:16:41,503 INFO L78 Accepts]: Start accepts. Automaton has 12568 states and 20215 transitions. Word has length 254 [2019-10-15 01:16:41,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:41,504 INFO L462 AbstractCegarLoop]: Abstraction has 12568 states and 20215 transitions. [2019-10-15 01:16:41,504 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:16:41,504 INFO L276 IsEmpty]: Start isEmpty. Operand 12568 states and 20215 transitions. [2019-10-15 01:16:41,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-15 01:16:41,561 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:41,562 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:41,562 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:41,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:41,562 INFO L82 PathProgramCache]: Analyzing trace with hash 2145881105, now seen corresponding path program 1 times [2019-10-15 01:16:41,563 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:41,563 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908126149] [2019-10-15 01:16:41,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:41,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:41,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:41,779 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:41,780 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908126149] [2019-10-15 01:16:41,780 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:41,780 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:41,780 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258914979] [2019-10-15 01:16:41,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:41,781 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:41,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:41,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:41,782 INFO L87 Difference]: Start difference. First operand 12568 states and 20215 transitions. Second operand 8 states. [2019-10-15 01:16:46,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:46,424 INFO L93 Difference]: Finished difference Result 38606 states and 66899 transitions. [2019-10-15 01:16:46,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:46,424 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2019-10-15 01:16:46,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:46,567 INFO L225 Difference]: With dead ends: 38606 [2019-10-15 01:16:46,568 INFO L226 Difference]: Without dead ends: 26103 [2019-10-15 01:16:46,635 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:46,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26103 states.