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_spec8_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:17:02,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:17:02,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:17:02,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:17:02,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:17:02,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:17:02,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:17:02,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:17:02,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:17:02,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:17:02,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:17:02,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:17:02,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:17:02,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:17:02,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:17:02,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:17:02,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:17:02,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:17:02,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:17:02,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:17:02,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:17:02,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:17:02,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:17:02,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:17:02,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:17:02,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:17:02,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:17:02,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:17:02,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:17:02,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:17:02,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:17:02,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:17:02,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:17:02,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:17:02,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:17:02,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:17:02,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:17:02,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:17:02,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:17:02,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:17:02,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:17:02,118 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 01:17:02,134 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:17:02,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:17:02,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:17:02,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:17:02,136 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:17:02,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:17:02,137 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:17:02,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:17:02,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:17:02,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:17:02,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:17:02,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:17:02,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:17:02,138 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:17:02,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:17:02,139 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:17:02,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:17:02,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:17:02,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:17:02,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:17:02,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:17:02,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:17:02,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:17:02,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:17:02,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:17:02,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:17:02,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:17:02,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:17:02,141 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 01:17:02,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:17:02,442 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:17:02,445 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:17:02,447 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:17:02,448 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:17:02,448 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product15.cil.c [2019-10-15 01:17:02,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b63965ce/e267825a9c2f4a8f82d8c0a5c7a617e9/FLAGd78f4e910 [2019-10-15 01:17:03,172 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:17:03,172 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product15.cil.c [2019-10-15 01:17:03,205 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b63965ce/e267825a9c2f4a8f82d8c0a5c7a617e9/FLAGd78f4e910 [2019-10-15 01:17:03,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b63965ce/e267825a9c2f4a8f82d8c0a5c7a617e9 [2019-10-15 01:17:03,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:17:03,408 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:17:03,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:17:03,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:17:03,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:17:03,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:17:03" (1/1) ... [2019-10-15 01:17:03,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0eefb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:03, skipping insertion in model container [2019-10-15 01:17:03,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:17:03" (1/1) ... [2019-10-15 01:17:03,425 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:17:03,512 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:17:04,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:17:04,346 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:17:04,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:17:04,559 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:17:04,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04 WrapperNode [2019-10-15 01:17:04,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:17:04,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:17:04,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:17:04,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:17:04,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... [2019-10-15 01:17:04,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... [2019-10-15 01:17:04,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... [2019-10-15 01:17:04,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... [2019-10-15 01:17:04,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... [2019-10-15 01:17:04,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... [2019-10-15 01:17:04,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... [2019-10-15 01:17:04,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:17:04,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:17:04,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:17:04,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:17:04,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (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 01:17:04,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:17:04,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:17:04,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:17:04,829 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:17:04,829 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:17:04,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:17:04,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:17:04,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:17:04,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:17:04,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:17:04,832 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:17:04,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:17:04,832 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:17:04,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:17:04,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:17:04,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:17:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:17:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:17:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:17:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:17:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:17:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:17:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:17:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:17:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:17:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:17:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:17:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:17:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:17:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-15 01:17:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:17:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:17:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:17:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:17:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:17:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:17:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:17:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:17:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:17:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:17:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:17:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:17:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:17:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:17:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:17:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:17:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:17:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:17:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:17:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:17:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:17:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:17:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:17:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:17:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:17:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:17:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:17:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:17:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:17:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:17:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:17:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:17:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:17:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:17:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:17:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:17:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:17:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:17:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:17:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:17:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:17:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:17:04,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:17:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:17:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:17:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:17:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:17:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:17:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:17:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:17:04,852 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:17:04,852 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:17:04,852 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:17:04,852 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:17:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:17:04,853 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:17:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:17:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:17:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:17:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 01:17:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 01:17:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:17:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:17:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:17:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:17:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:17:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:17:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:17:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:17:04,857 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:17:04,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:17:04,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:17:04,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:17:04,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:17:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:17:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:17:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:17:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:17:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:17:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:17:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:17:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:17:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:17:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:17:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:17:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:17:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:17:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:17:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:17:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:17:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:17:04,861 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:17:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:17:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:17:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:17:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:17:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:17:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:17:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:17:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:17:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:17:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:17:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:17:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:17:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:17:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:17:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:17:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:17:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:17:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:17:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:17:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:17:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:17:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:17:04,879 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:17:04,880 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:17:04,880 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:17:04,880 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:17:04,880 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:17:04,880 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:17:04,880 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:17:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:17:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:17:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:17:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:17:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 01:17:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:17:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:17:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:17:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-15 01:17:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 01:17:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:17:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:17:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:17:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:17:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:17:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:17:04,883 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:17:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:17:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:17:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:17:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:17:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:17:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:17:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:17:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:17:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:17:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:17:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:17:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:17:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:17:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:17:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:17:04,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:17:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:17:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:17:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:17:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:17:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:17:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:17:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:17:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:17:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:17:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:17:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:17:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:17:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:17:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:17:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:17:04,887 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:17:04,888 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:17:04,888 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:17:04,888 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:17:04,888 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:17:04,888 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:17:04,888 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:17:04,888 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:17:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:17:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:17:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:17:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:17:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:17:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:17:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:17:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:17:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:17:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:17:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:17:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:17:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:17:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:17:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:17:04,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:17:04,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:17:04,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:17:04,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:17:04,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:17:04,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:17:04,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:17:04,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:17:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:17:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:17:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:17:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:17:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:17:07,087 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:17:07,087 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:17:07,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:17:07 BoogieIcfgContainer [2019-10-15 01:17:07,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:17:07,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:17:07,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:17:07,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:17:07,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:17:03" (1/3) ... [2019-10-15 01:17:07,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5291d629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:17:07, skipping insertion in model container [2019-10-15 01:17:07,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (2/3) ... [2019-10-15 01:17:07,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5291d629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:17:07, skipping insertion in model container [2019-10-15 01:17:07,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:17:07" (3/3) ... [2019-10-15 01:17:07,098 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product15.cil.c [2019-10-15 01:17:07,108 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:17:07,119 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:17:07,130 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:17:07,170 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:17:07,171 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:17:07,171 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:17:07,171 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:17:07,171 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:17:07,171 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:17:07,171 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:17:07,171 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:17:07,209 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states. [2019-10-15 01:17:07,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-15 01:17:07,243 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:07,245 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:07,249 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:07,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:07,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1184146621, now seen corresponding path program 1 times [2019-10-15 01:17:07,270 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:07,270 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21468206] [2019-10-15 01:17:07,271 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:07,271 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:07,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:07,898 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:17:07,899 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21468206] [2019-10-15 01:17:07,900 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:07,900 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:17:07,901 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731744193] [2019-10-15 01:17:07,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:17:07,909 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:07,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:17:07,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:17:07,928 INFO L87 Difference]: Start difference. First operand 470 states. Second operand 2 states. [2019-10-15 01:17:08,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:08,027 INFO L93 Difference]: Finished difference Result 634 states and 839 transitions. [2019-10-15 01:17:08,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:17:08,029 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-10-15 01:17:08,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:08,074 INFO L225 Difference]: With dead ends: 634 [2019-10-15 01:17:08,075 INFO L226 Difference]: Without dead ends: 423 [2019-10-15 01:17:08,083 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 01:17:08,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-10-15 01:17:08,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2019-10-15 01:17:08,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 423 states. [2019-10-15 01:17:08,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 564 transitions. [2019-10-15 01:17:08,213 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 564 transitions. Word has length 145 [2019-10-15 01:17:08,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:08,216 INFO L462 AbstractCegarLoop]: Abstraction has 423 states and 564 transitions. [2019-10-15 01:17:08,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:17:08,217 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 564 transitions. [2019-10-15 01:17:08,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 01:17:08,226 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:08,226 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:08,226 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:08,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:08,227 INFO L82 PathProgramCache]: Analyzing trace with hash -723770535, now seen corresponding path program 1 times [2019-10-15 01:17:08,230 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:08,230 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639371285] [2019-10-15 01:17:08,230 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:08,230 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:08,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:08,473 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:17:08,473 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639371285] [2019-10-15 01:17:08,474 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:08,474 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:08,474 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377410282] [2019-10-15 01:17:08,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:08,476 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:08,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:08,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:08,477 INFO L87 Difference]: Start difference. First operand 423 states and 564 transitions. Second operand 3 states. [2019-10-15 01:17:08,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:08,525 INFO L93 Difference]: Finished difference Result 617 states and 808 transitions. [2019-10-15 01:17:08,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:08,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-15 01:17:08,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:08,530 INFO L225 Difference]: With dead ends: 617 [2019-10-15 01:17:08,530 INFO L226 Difference]: Without dead ends: 426 [2019-10-15 01:17:08,532 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 01:17:08,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2019-10-15 01:17:08,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 425. [2019-10-15 01:17:08,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2019-10-15 01:17:08,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 566 transitions. [2019-10-15 01:17:08,559 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 566 transitions. Word has length 146 [2019-10-15 01:17:08,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:08,560 INFO L462 AbstractCegarLoop]: Abstraction has 425 states and 566 transitions. [2019-10-15 01:17:08,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:08,561 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 566 transitions. [2019-10-15 01:17:08,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 01:17:08,566 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:08,566 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:08,566 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:08,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:08,567 INFO L82 PathProgramCache]: Analyzing trace with hash -203920503, now seen corresponding path program 1 times [2019-10-15 01:17:08,567 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:08,567 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578033625] [2019-10-15 01:17:08,567 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:08,567 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:08,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:08,803 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:17:08,804 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578033625] [2019-10-15 01:17:08,804 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:08,804 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:08,804 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841421625] [2019-10-15 01:17:08,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:08,805 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:08,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:08,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:08,806 INFO L87 Difference]: Start difference. First operand 425 states and 566 transitions. Second operand 3 states. [2019-10-15 01:17:08,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:08,848 INFO L93 Difference]: Finished difference Result 826 states and 1130 transitions. [2019-10-15 01:17:08,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:08,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-15 01:17:08,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:08,856 INFO L225 Difference]: With dead ends: 826 [2019-10-15 01:17:08,856 INFO L226 Difference]: Without dead ends: 466 [2019-10-15 01:17:08,859 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 01:17:08,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2019-10-15 01:17:08,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 465. [2019-10-15 01:17:08,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2019-10-15 01:17:08,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 635 transitions. [2019-10-15 01:17:08,902 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 635 transitions. Word has length 156 [2019-10-15 01:17:08,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:08,904 INFO L462 AbstractCegarLoop]: Abstraction has 465 states and 635 transitions. [2019-10-15 01:17:08,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:08,904 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 635 transitions. [2019-10-15 01:17:08,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-15 01:17:08,910 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:08,910 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:08,911 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:08,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:08,911 INFO L82 PathProgramCache]: Analyzing trace with hash 203801419, now seen corresponding path program 1 times [2019-10-15 01:17:08,911 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:08,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433502660] [2019-10-15 01:17:08,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:08,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:08,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:09,076 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:17:09,077 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433502660] [2019-10-15 01:17:09,077 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:09,077 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:09,077 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774360932] [2019-10-15 01:17:09,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:09,078 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:09,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:09,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:09,079 INFO L87 Difference]: Start difference. First operand 465 states and 635 transitions. Second operand 3 states. [2019-10-15 01:17:09,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:09,112 INFO L93 Difference]: Finished difference Result 943 states and 1332 transitions. [2019-10-15 01:17:09,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:09,113 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-10-15 01:17:09,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:09,117 INFO L225 Difference]: With dead ends: 943 [2019-10-15 01:17:09,117 INFO L226 Difference]: Without dead ends: 543 [2019-10-15 01:17:09,119 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 01:17:09,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2019-10-15 01:17:09,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 542. [2019-10-15 01:17:09,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2019-10-15 01:17:09,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 767 transitions. [2019-10-15 01:17:09,143 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 767 transitions. Word has length 157 [2019-10-15 01:17:09,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:09,144 INFO L462 AbstractCegarLoop]: Abstraction has 542 states and 767 transitions. [2019-10-15 01:17:09,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:09,144 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 767 transitions. [2019-10-15 01:17:09,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-15 01:17:09,148 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:09,148 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:09,148 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:09,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:09,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1434303959, now seen corresponding path program 1 times [2019-10-15 01:17:09,149 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:09,149 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255785547] [2019-10-15 01:17:09,150 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,150 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:09,323 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:17:09,324 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255785547] [2019-10-15 01:17:09,324 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:09,324 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:09,325 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457075146] [2019-10-15 01:17:09,326 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:09,326 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:09,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:09,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:09,327 INFO L87 Difference]: Start difference. First operand 542 states and 767 transitions. Second operand 3 states. [2019-10-15 01:17:09,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:09,419 INFO L93 Difference]: Finished difference Result 1168 states and 1718 transitions. [2019-10-15 01:17:09,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:09,420 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-10-15 01:17:09,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:09,430 INFO L225 Difference]: With dead ends: 1168 [2019-10-15 01:17:09,431 INFO L226 Difference]: Without dead ends: 691 [2019-10-15 01:17:09,433 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 01:17:09,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2019-10-15 01:17:09,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 690. [2019-10-15 01:17:09,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2019-10-15 01:17:09,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1019 transitions. [2019-10-15 01:17:09,498 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1019 transitions. Word has length 158 [2019-10-15 01:17:09,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:09,501 INFO L462 AbstractCegarLoop]: Abstraction has 690 states and 1019 transitions. [2019-10-15 01:17:09,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:09,501 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1019 transitions. [2019-10-15 01:17:09,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-15 01:17:09,507 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:09,507 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:09,508 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:09,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:09,508 INFO L82 PathProgramCache]: Analyzing trace with hash 2050061483, now seen corresponding path program 1 times [2019-10-15 01:17:09,509 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:09,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35320786] [2019-10-15 01:17:09,509 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,509 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:09,732 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:17:09,732 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35320786] [2019-10-15 01:17:09,733 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:09,733 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:09,734 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629807294] [2019-10-15 01:17:09,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:09,735 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:09,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:09,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:09,735 INFO L87 Difference]: Start difference. First operand 690 states and 1019 transitions. Second operand 3 states. [2019-10-15 01:17:09,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:09,807 INFO L93 Difference]: Finished difference Result 1600 states and 2454 transitions. [2019-10-15 01:17:09,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:09,808 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-15 01:17:09,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:09,820 INFO L225 Difference]: With dead ends: 1600 [2019-10-15 01:17:09,821 INFO L226 Difference]: Without dead ends: 975 [2019-10-15 01:17:09,824 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 01:17:09,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2019-10-15 01:17:09,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 974. [2019-10-15 01:17:09,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 974 states. [2019-10-15 01:17:09,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1499 transitions. [2019-10-15 01:17:09,872 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1499 transitions. Word has length 159 [2019-10-15 01:17:09,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:09,873 INFO L462 AbstractCegarLoop]: Abstraction has 974 states and 1499 transitions. [2019-10-15 01:17:09,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:09,874 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1499 transitions. [2019-10-15 01:17:09,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-15 01:17:09,879 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:09,880 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:09,880 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:09,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:09,881 INFO L82 PathProgramCache]: Analyzing trace with hash 978028745, now seen corresponding path program 1 times [2019-10-15 01:17:09,881 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:09,881 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913692200] [2019-10-15 01:17:09,881 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,881 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:10,025 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:17:10,026 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913692200] [2019-10-15 01:17:10,026 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:10,026 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:10,031 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798746087] [2019-10-15 01:17:10,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:10,032 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:10,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:10,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:10,032 INFO L87 Difference]: Start difference. First operand 974 states and 1499 transitions. Second operand 3 states. [2019-10-15 01:17:10,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:10,170 INFO L93 Difference]: Finished difference Result 2428 states and 3854 transitions. [2019-10-15 01:17:10,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:10,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-15 01:17:10,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:10,182 INFO L225 Difference]: With dead ends: 2428 [2019-10-15 01:17:10,182 INFO L226 Difference]: Without dead ends: 1519 [2019-10-15 01:17:10,188 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 01:17:10,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2019-10-15 01:17:10,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1518. [2019-10-15 01:17:10,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2019-10-15 01:17:10,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2411 transitions. [2019-10-15 01:17:10,288 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2411 transitions. Word has length 160 [2019-10-15 01:17:10,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:10,289 INFO L462 AbstractCegarLoop]: Abstraction has 1518 states and 2411 transitions. [2019-10-15 01:17:10,289 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:10,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2411 transitions. [2019-10-15 01:17:10,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 01:17:10,296 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:10,296 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:10,296 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:10,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:10,297 INFO L82 PathProgramCache]: Analyzing trace with hash -588079097, now seen corresponding path program 1 times [2019-10-15 01:17:10,297 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:10,298 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095804700] [2019-10-15 01:17:10,298 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:10,298 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:10,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:11,681 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-15 01:17:11,720 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095804700] [2019-10-15 01:17:11,721 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:11,722 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2019-10-15 01:17:11,722 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972372809] [2019-10-15 01:17:11,722 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-10-15 01:17:11,723 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:11,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-10-15 01:17:11,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1105, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:17:11,724 INFO L87 Difference]: Start difference. First operand 1518 states and 2411 transitions. Second operand 35 states. [2019-10-15 01:17:17,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:17,305 INFO L93 Difference]: Finished difference Result 4496 states and 7322 transitions. [2019-10-15 01:17:17,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-15 01:17:17,306 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 162 [2019-10-15 01:17:17,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:17,333 INFO L225 Difference]: With dead ends: 4496 [2019-10-15 01:17:17,333 INFO L226 Difference]: Without dead ends: 3010 [2019-10-15 01:17:17,344 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=298, Invalid=4124, Unknown=0, NotChecked=0, Total=4422 [2019-10-15 01:17:17,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2019-10-15 01:17:17,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 2794. [2019-10-15 01:17:17,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2794 states. [2019-10-15 01:17:17,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 4641 transitions. [2019-10-15 01:17:17,546 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 4641 transitions. Word has length 162 [2019-10-15 01:17:17,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:17,547 INFO L462 AbstractCegarLoop]: Abstraction has 2794 states and 4641 transitions. [2019-10-15 01:17:17,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-10-15 01:17:17,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 4641 transitions. [2019-10-15 01:17:17,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 01:17:17,561 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:17,562 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:17,562 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:17,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:17,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1816996145, now seen corresponding path program 1 times [2019-10-15 01:17:17,563 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:17,563 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570022959] [2019-10-15 01:17:17,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:17,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:17,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:17:18,313 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570022959] [2019-10-15 01:17:18,314 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25309131] [2019-10-15 01:17:18,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:17:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:18,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:17:18,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:17:19,135 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:17:19,135 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:17:19,475 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:19,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:19,624 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:17:19,625 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:17:19,625 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [31, 7] total 39 [2019-10-15 01:17:19,625 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972839815] [2019-10-15 01:17:19,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:17:19,626 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:19,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:17:19,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2019-10-15 01:17:19,628 INFO L87 Difference]: Start difference. First operand 2794 states and 4641 transitions. Second operand 7 states. [2019-10-15 01:17:20,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:20,751 INFO L93 Difference]: Finished difference Result 5541 states and 9263 transitions. [2019-10-15 01:17:20,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:17:20,752 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2019-10-15 01:17:20,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:20,771 INFO L225 Difference]: With dead ends: 5541 [2019-10-15 01:17:20,771 INFO L226 Difference]: Without dead ends: 2798 [2019-10-15 01:17:20,784 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 316 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-15 01:17:20,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2019-10-15 01:17:20,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2019-10-15 01:17:20,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2798 states. [2019-10-15 01:17:20,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4646 transitions. [2019-10-15 01:17:20,941 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4646 transitions. Word has length 162 [2019-10-15 01:17:20,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:20,942 INFO L462 AbstractCegarLoop]: Abstraction has 2798 states and 4646 transitions. [2019-10-15 01:17:20,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:17:20,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4646 transitions. [2019-10-15 01:17:20,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-15 01:17:20,954 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:20,954 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:17:21,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:17:21,163 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:21,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:21,164 INFO L82 PathProgramCache]: Analyzing trace with hash 285060647, now seen corresponding path program 1 times [2019-10-15 01:17:21,164 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:21,164 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424698824] [2019-10-15 01:17:21,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:21,165 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:21,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:21,917 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:17:21,917 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424698824] [2019-10-15 01:17:21,917 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:21,918 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 01:17:21,918 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677048961] [2019-10-15 01:17:21,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 01:17:21,919 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:21,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 01:17:21,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:17:21,920 INFO L87 Difference]: Start difference. First operand 2798 states and 4646 transitions. Second operand 26 states. [2019-10-15 01:17:29,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:29,346 INFO L93 Difference]: Finished difference Result 6338 states and 10240 transitions. [2019-10-15 01:17:29,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-10-15 01:17:29,347 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 163 [2019-10-15 01:17:29,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:29,383 INFO L225 Difference]: With dead ends: 6338 [2019-10-15 01:17:29,383 INFO L226 Difference]: Without dead ends: 6156 [2019-10-15 01:17:29,388 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1516 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=724, Invalid=5596, Unknown=0, NotChecked=0, Total=6320 [2019-10-15 01:17:29,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6156 states. [2019-10-15 01:17:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6156 to 5733. [2019-10-15 01:17:29,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5733 states. [2019-10-15 01:17:29,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5733 states to 5733 states and 9484 transitions. [2019-10-15 01:17:29,758 INFO L78 Accepts]: Start accepts. Automaton has 5733 states and 9484 transitions. Word has length 163 [2019-10-15 01:17:29,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:29,762 INFO L462 AbstractCegarLoop]: Abstraction has 5733 states and 9484 transitions. [2019-10-15 01:17:29,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 01:17:29,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5733 states and 9484 transitions. [2019-10-15 01:17:29,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-15 01:17:29,793 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:29,793 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:17:29,794 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:29,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:29,794 INFO L82 PathProgramCache]: Analyzing trace with hash -2053345430, now seen corresponding path program 1 times [2019-10-15 01:17:29,795 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:29,795 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429424681] [2019-10-15 01:17:29,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:29,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:29,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:17:29,976 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429424681] [2019-10-15 01:17:29,976 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:29,976 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:17:29,976 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314358056] [2019-10-15 01:17:29,977 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:17:29,978 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:29,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:17:29,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:17:29,978 INFO L87 Difference]: Start difference. First operand 5733 states and 9484 transitions. Second operand 9 states. [2019-10-15 01:17:30,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:30,344 INFO L93 Difference]: Finished difference Result 6324 states and 10260 transitions. [2019-10-15 01:17:30,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:17:30,344 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 164 [2019-10-15 01:17:30,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:30,384 INFO L225 Difference]: With dead ends: 6324 [2019-10-15 01:17:30,384 INFO L226 Difference]: Without dead ends: 5773 [2019-10-15 01:17:30,389 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:17:30,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5773 states. [2019-10-15 01:17:30,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5773 to 5768. [2019-10-15 01:17:30,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5768 states. [2019-10-15 01:17:30,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 9538 transitions. [2019-10-15 01:17:30,779 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 9538 transitions. Word has length 164 [2019-10-15 01:17:30,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:30,780 INFO L462 AbstractCegarLoop]: Abstraction has 5768 states and 9538 transitions. [2019-10-15 01:17:30,780 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:17:30,780 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 9538 transitions. [2019-10-15 01:17:30,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-15 01:17:30,810 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:30,810 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:17:30,811 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:30,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:30,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1217467598, now seen corresponding path program 1 times [2019-10-15 01:17:30,812 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:30,812 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062133112] [2019-10-15 01:17:30,812 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:30,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:30,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:31,138 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:17:31,139 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062133112] [2019-10-15 01:17:31,139 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:31,139 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:17:31,140 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363807374] [2019-10-15 01:17:31,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:17:31,140 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:31,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:17:31,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:17:31,141 INFO L87 Difference]: Start difference. First operand 5768 states and 9538 transitions. Second operand 9 states. [2019-10-15 01:17:31,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:31,459 INFO L93 Difference]: Finished difference Result 5972 states and 9796 transitions. [2019-10-15 01:17:31,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:17:31,459 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 164 [2019-10-15 01:17:31,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:31,496 INFO L225 Difference]: With dead ends: 5972 [2019-10-15 01:17:31,497 INFO L226 Difference]: Without dead ends: 2821 [2019-10-15 01:17:31,507 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:17:31,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2019-10-15 01:17:31,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2819. [2019-10-15 01:17:31,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2819 states. [2019-10-15 01:17:31,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 4673 transitions. [2019-10-15 01:17:31,639 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 4673 transitions. Word has length 164 [2019-10-15 01:17:31,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:31,639 INFO L462 AbstractCegarLoop]: Abstraction has 2819 states and 4673 transitions. [2019-10-15 01:17:31,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:17:31,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 4673 transitions. [2019-10-15 01:17:31,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-15 01:17:31,651 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:31,651 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:31,651 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:31,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:31,652 INFO L82 PathProgramCache]: Analyzing trace with hash -981229275, now seen corresponding path program 2 times [2019-10-15 01:17:31,652 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:31,652 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658923035] [2019-10-15 01:17:31,652 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:31,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:31,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 01:17:32,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658923035] [2019-10-15 01:17:32,144 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:32,144 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-15 01:17:32,145 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796172038] [2019-10-15 01:17:32,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 01:17:32,145 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:32,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 01:17:32,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2019-10-15 01:17:32,146 INFO L87 Difference]: Start difference. First operand 2819 states and 4673 transitions. Second operand 24 states.