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_spec1_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:13:01,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:13:01,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:13:01,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:13:01,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:13:01,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:13:01,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:13:01,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:13:01,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:13:01,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:13:01,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:13:01,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:13:01,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:13:01,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:13:01,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:13:01,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:13:01,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:13:01,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:13:01,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:13:01,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:13:01,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:13:01,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:13:01,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:13:01,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:13:01,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:13:01,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:13:01,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:13:01,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:13:01,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:13:01,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:13:01,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:13:01,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:13:01,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:13:01,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:13:01,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:13:01,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:13:01,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:13:01,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:13:01,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:13:01,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:13:01,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:13:01,513 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 01:13:01,537 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:13:01,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:13:01,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:13:01,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:13:01,542 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:13:01,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:13:01,543 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:13:01,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:13:01,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:13:01,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:13:01,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:13:01,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:13:01,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:13:01,545 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:13:01,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:13:01,545 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:13:01,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:13:01,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:13:01,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:13:01,547 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:13:01,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:13:01,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:13:01,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:13:01,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:13:01,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:13:01,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:13:01,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:13:01,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:13:01,549 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 01:13:01,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:13:01,890 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:13:01,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:13:01,895 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:13:01,895 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:13:01,896 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product12.cil.c [2019-10-15 01:13:01,967 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf6abda7c/97d6c4683fe94ee3ba66a4553cd9a750/FLAG6ce5ebba5 [2019-10-15 01:13:02,722 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:13:02,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product12.cil.c [2019-10-15 01:13:02,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf6abda7c/97d6c4683fe94ee3ba66a4553cd9a750/FLAG6ce5ebba5 [2019-10-15 01:13:02,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf6abda7c/97d6c4683fe94ee3ba66a4553cd9a750 [2019-10-15 01:13:02,911 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:13:02,913 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:13:02,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:02,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:13:02,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:13:02,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:02" (1/1) ... [2019-10-15 01:13:02,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7789f9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:02, skipping insertion in model container [2019-10-15 01:13:02,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:02" (1/1) ... [2019-10-15 01:13:02,932 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:13:03,016 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:13:03,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:03,783 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:13:03,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:03,982 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:13:03,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:03 WrapperNode [2019-10-15 01:13:03,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:03,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:13:03,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:13:03,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:13:03,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:03" (1/1) ... [2019-10-15 01:13:03,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:03" (1/1) ... [2019-10-15 01:13:04,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:03" (1/1) ... [2019-10-15 01:13:04,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:03" (1/1) ... [2019-10-15 01:13:04,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:03" (1/1) ... [2019-10-15 01:13:04,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:03" (1/1) ... [2019-10-15 01:13:04,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:03" (1/1) ... [2019-10-15 01:13:04,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:13:04,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:13:04,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:13:04,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:13:04,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:03" (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 01:13:04,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:13:04,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:13:04,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:04,241 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:13:04,241 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:13:04,242 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:13:04,242 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:13:04,242 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:13:04,242 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:13:04,243 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:13:04,243 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:04,243 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:13:04,243 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:04,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:13:04,244 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:13:04,244 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:13:04,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:13:04,245 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:13:04,245 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:13:04,246 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:13:04,246 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:13:04,246 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:13:04,246 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:13:04,247 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:13:04,247 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:13:04,247 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:13:04,247 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:13:04,247 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:13:04,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:13:04,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:13:04,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:13:04,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:13:04,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:13:04,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:13:04,249 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:13:04,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:13:04,250 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:13:04,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:13:04,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:13:04,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:13:04,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:13:04,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:13:04,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:13:04,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:13:04,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:13:04,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:13:04,252 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:13:04,252 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:13:04,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:13:04,253 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:13:04,253 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:13:04,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:13:04,255 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:13:04,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:13:04,255 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:13:04,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:13:04,256 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:13:04,256 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:13:04,256 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:13:04,257 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:13:04,257 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:13:04,257 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:13:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:13:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:13:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:13:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:13:04,259 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:13:04,259 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:13:04,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:13:04,259 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:13:04,259 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:13:04,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:13:04,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:13:04,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:13:04,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:13:04,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:13:04,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:13:04,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:13:04,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:13:04,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:13:04,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:13:04,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:13:04,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:13:04,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:13:04,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:13:04,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:13:04,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:13:04,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:13:04,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:13:04,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:13:04,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:13:04,266 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:13:04,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:04,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:04,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:04,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:13:04,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:13:04,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:13:04,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:13:04,268 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:13:04,269 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:13:04,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:13:04,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:13:04,269 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:13:04,270 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:13:04,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:04,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:13:04,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:13:04,270 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:13:04,271 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:13:04,271 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:13:04,271 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:13:04,271 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:13:04,271 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:13:04,272 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:13:04,272 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:13:04,272 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:13:04,273 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:13:04,273 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:13:04,273 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:13:04,273 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:13:04,274 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:13:04,274 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:13:04,274 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:13:04,276 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:13:04,276 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:13:04,276 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:13:04,276 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:13:04,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:13:04,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:13:04,277 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:13:04,278 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:13:04,278 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:13:04,278 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:13:04,279 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:13:04,279 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:13:04,280 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:13:04,284 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:13:04,284 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:13:04,284 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:13:04,284 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:13:04,285 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:13:04,285 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:13:04,285 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:13:04,293 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:13:04,293 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:04,294 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:04,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:13:04,294 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:13:04,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:13:04,295 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:13:04,295 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:13:04,295 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:13:04,295 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:13:04,295 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:13:04,295 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:13:04,296 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:13:04,296 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:13:04,296 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:13:04,296 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:13:04,296 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:13:04,296 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:13:04,297 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:13:04,297 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:13:04,297 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:13:04,297 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:13:04,297 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:13:04,297 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:13:04,297 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:13:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:13:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:13:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:13:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:13:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:13:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:13:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:13:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:13:04,299 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:13:04,299 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:13:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:13:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:13:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:13:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:13:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:13:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:13:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:13:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:13:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:13:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:13:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:13:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:13:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:13:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:13:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:13:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:13:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:13:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:13:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:13:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:13:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:13:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:13:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:13:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:13:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:13:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:13:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:13:04,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:13:04,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:13:04,305 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:04,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:13:04,305 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:04,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:13:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:13:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:13:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:13:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:13:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:13:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:13:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:13:04,307 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:13:04,307 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:13:04,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:13:04,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:13:04,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:13:06,599 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:13:06,599 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:13:06,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:06 BoogieIcfgContainer [2019-10-15 01:13:06,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:13:06,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:13:06,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:13:06,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:13:06,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:13:02" (1/3) ... [2019-10-15 01:13:06,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42949fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:06, skipping insertion in model container [2019-10-15 01:13:06,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:03" (2/3) ... [2019-10-15 01:13:06,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42949fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:06, skipping insertion in model container [2019-10-15 01:13:06,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:06" (3/3) ... [2019-10-15 01:13:06,611 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product12.cil.c [2019-10-15 01:13:06,622 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:13:06,632 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:13:06,646 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:13:06,676 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:13:06,676 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:13:06,676 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:13:06,676 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:13:06,676 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:13:06,676 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:13:06,677 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:13:06,677 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:13:06,705 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states. [2019-10-15 01:13:06,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-15 01:13:06,724 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:06,726 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 01:13:06,728 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:06,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:06,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1292534618, now seen corresponding path program 1 times [2019-10-15 01:13:06,745 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:06,745 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798817507] [2019-10-15 01:13:06,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:06,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:06,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:07,297 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 01:13:07,298 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798817507] [2019-10-15 01:13:07,299 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:07,299 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:13:07,300 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957587190] [2019-10-15 01:13:07,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:13:07,307 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:07,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:13:07,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:07,326 INFO L87 Difference]: Start difference. First operand 424 states. Second operand 2 states. [2019-10-15 01:13:07,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:07,388 INFO L93 Difference]: Finished difference Result 557 states and 745 transitions. [2019-10-15 01:13:07,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:13:07,390 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-10-15 01:13:07,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:07,412 INFO L225 Difference]: With dead ends: 557 [2019-10-15 01:13:07,412 INFO L226 Difference]: Without dead ends: 379 [2019-10-15 01:13:07,418 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 01:13:07,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-10-15 01:13:07,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2019-10-15 01:13:07,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-10-15 01:13:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 510 transitions. [2019-10-15 01:13:07,545 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 510 transitions. Word has length 145 [2019-10-15 01:13:07,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:07,548 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 510 transitions. [2019-10-15 01:13:07,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:13:07,548 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 510 transitions. [2019-10-15 01:13:07,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 01:13:07,561 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:07,561 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 01:13:07,561 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:07,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:07,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1702693606, now seen corresponding path program 1 times [2019-10-15 01:13:07,564 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:07,564 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748569589] [2019-10-15 01:13:07,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:07,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:07,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:07,876 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 01:13:07,876 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748569589] [2019-10-15 01:13:07,876 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:07,877 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:07,877 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950481815] [2019-10-15 01:13:07,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:07,886 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:07,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:07,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:07,887 INFO L87 Difference]: Start difference. First operand 379 states and 510 transitions. Second operand 3 states. [2019-10-15 01:13:07,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:07,978 INFO L93 Difference]: Finished difference Result 540 states and 714 transitions. [2019-10-15 01:13:07,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:07,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-15 01:13:07,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:07,983 INFO L225 Difference]: With dead ends: 540 [2019-10-15 01:13:07,984 INFO L226 Difference]: Without dead ends: 382 [2019-10-15 01:13:07,986 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 01:13:07,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2019-10-15 01:13:08,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2019-10-15 01:13:08,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-10-15 01:13:08,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 512 transitions. [2019-10-15 01:13:08,024 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 512 transitions. Word has length 146 [2019-10-15 01:13:08,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:08,025 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 512 transitions. [2019-10-15 01:13:08,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:08,027 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 512 transitions. [2019-10-15 01:13:08,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-15 01:13:08,032 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:08,032 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] [2019-10-15 01:13:08,032 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:08,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:08,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1477290126, now seen corresponding path program 1 times [2019-10-15 01:13:08,033 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:08,033 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094730202] [2019-10-15 01:13:08,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:08,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:08,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:08,168 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 01:13:08,168 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094730202] [2019-10-15 01:13:08,169 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:08,169 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:08,169 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391957508] [2019-10-15 01:13:08,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:08,170 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:08,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:08,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:08,171 INFO L87 Difference]: Start difference. First operand 381 states and 512 transitions. Second operand 3 states. [2019-10-15 01:13:08,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:08,201 INFO L93 Difference]: Finished difference Result 736 states and 1019 transitions. [2019-10-15 01:13:08,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:08,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2019-10-15 01:13:08,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:08,206 INFO L225 Difference]: With dead ends: 736 [2019-10-15 01:13:08,206 INFO L226 Difference]: Without dead ends: 420 [2019-10-15 01:13:08,208 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 01:13:08,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2019-10-15 01:13:08,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 419. [2019-10-15 01:13:08,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2019-10-15 01:13:08,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 578 transitions. [2019-10-15 01:13:08,233 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 578 transitions. Word has length 152 [2019-10-15 01:13:08,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:08,234 INFO L462 AbstractCegarLoop]: Abstraction has 419 states and 578 transitions. [2019-10-15 01:13:08,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:08,234 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 578 transitions. [2019-10-15 01:13:08,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-15 01:13:08,237 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:08,237 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] [2019-10-15 01:13:08,237 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:08,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:08,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1886930768, now seen corresponding path program 1 times [2019-10-15 01:13:08,238 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:08,238 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066270073] [2019-10-15 01:13:08,238 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:08,239 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:08,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:09,356 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 01:13:09,356 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066270073] [2019-10-15 01:13:09,356 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:09,357 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2019-10-15 01:13:09,357 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936963093] [2019-10-15 01:13:09,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-10-15 01:13:09,359 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:09,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-10-15 01:13:09,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=801, Unknown=0, NotChecked=0, Total=870 [2019-10-15 01:13:09,362 INFO L87 Difference]: Start difference. First operand 419 states and 578 transitions. Second operand 30 states. [2019-10-15 01:13:13,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:13,656 INFO L93 Difference]: Finished difference Result 1195 states and 1682 transitions. [2019-10-15 01:13:13,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-10-15 01:13:13,661 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 153 [2019-10-15 01:13:13,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:13,668 INFO L225 Difference]: With dead ends: 1195 [2019-10-15 01:13:13,668 INFO L226 Difference]: Without dead ends: 812 [2019-10-15 01:13:13,674 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=254, Invalid=3052, Unknown=0, NotChecked=0, Total=3306 [2019-10-15 01:13:13,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2019-10-15 01:13:13,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 629. [2019-10-15 01:13:13,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2019-10-15 01:13:13,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 914 transitions. [2019-10-15 01:13:13,728 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 914 transitions. Word has length 153 [2019-10-15 01:13:13,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:13,728 INFO L462 AbstractCegarLoop]: Abstraction has 629 states and 914 transitions. [2019-10-15 01:13:13,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-10-15 01:13:13,729 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 914 transitions. [2019-10-15 01:13:13,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 01:13:13,733 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:13,733 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] [2019-10-15 01:13:13,733 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:13,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:13,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1456150513, now seen corresponding path program 1 times [2019-10-15 01:13:13,734 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:13,734 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423989720] [2019-10-15 01:13:13,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:13,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:13,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:14,451 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 01:13:14,451 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423989720] [2019-10-15 01:13:14,452 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805026402] [2019-10-15 01:13:14,452 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 01:13:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:15,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 2223 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:13:15,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:13:15,265 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 01:13:15,266 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:13:15,566 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:15,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:15,785 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 01:13:15,785 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:13:15,786 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [30, 7] total 38 [2019-10-15 01:13:15,786 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851099763] [2019-10-15 01:13:15,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:13:15,787 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:15,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:13:15,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1299, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 01:13:15,789 INFO L87 Difference]: Start difference. First operand 629 states and 914 transitions. Second operand 7 states. [2019-10-15 01:13:16,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:16,732 INFO L93 Difference]: Finished difference Result 1211 states and 1781 transitions. [2019-10-15 01:13:16,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:16,733 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2019-10-15 01:13:16,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:16,739 INFO L225 Difference]: With dead ends: 1211 [2019-10-15 01:13:16,739 INFO L226 Difference]: Without dead ends: 633 [2019-10-15 01:13:16,742 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 300 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=125, Invalid=1435, Unknown=0, NotChecked=0, Total=1560 [2019-10-15 01:13:16,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2019-10-15 01:13:16,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2019-10-15 01:13:16,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2019-10-15 01:13:16,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 919 transitions. [2019-10-15 01:13:16,783 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 919 transitions. Word has length 154 [2019-10-15 01:13:16,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:16,784 INFO L462 AbstractCegarLoop]: Abstraction has 633 states and 919 transitions. [2019-10-15 01:13:16,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:13:16,784 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 919 transitions. [2019-10-15 01:13:16,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 01:13:16,788 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:16,788 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] [2019-10-15 01:13:16,998 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:16,998 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:16,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:16,999 INFO L82 PathProgramCache]: Analyzing trace with hash 864289227, now seen corresponding path program 1 times [2019-10-15 01:13:17,000 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:17,000 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622260662] [2019-10-15 01:13:17,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:17,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:17,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:17,689 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 01:13:17,689 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622260662] [2019-10-15 01:13:17,690 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:17,690 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-15 01:13:17,690 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337917620] [2019-10-15 01:13:17,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-15 01:13:17,692 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:17,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-15 01:13:17,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=544, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:13:17,693 INFO L87 Difference]: Start difference. First operand 633 states and 919 transitions. Second operand 25 states. [2019-10-15 01:13:24,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:24,058 INFO L93 Difference]: Finished difference Result 1864 states and 2600 transitions. [2019-10-15 01:13:24,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2019-10-15 01:13:24,059 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 155 [2019-10-15 01:13:24,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:24,072 INFO L225 Difference]: With dead ends: 1864 [2019-10-15 01:13:24,072 INFO L226 Difference]: Without dead ends: 1720 [2019-10-15 01:13:24,075 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1465 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=681, Invalid=5325, Unknown=0, NotChecked=0, Total=6006 [2019-10-15 01:13:24,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2019-10-15 01:13:24,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1358. [2019-10-15 01:13:24,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1358 states. [2019-10-15 01:13:24,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1964 transitions. [2019-10-15 01:13:24,222 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1964 transitions. Word has length 155 [2019-10-15 01:13:24,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:24,226 INFO L462 AbstractCegarLoop]: Abstraction has 1358 states and 1964 transitions. [2019-10-15 01:13:24,227 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-15 01:13:24,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1964 transitions. [2019-10-15 01:13:24,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 01:13:24,242 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:24,242 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] [2019-10-15 01:13:24,243 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:24,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:24,243 INFO L82 PathProgramCache]: Analyzing trace with hash 339417093, now seen corresponding path program 1 times [2019-10-15 01:13:24,243 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:24,244 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511852342] [2019-10-15 01:13:24,244 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:24,244 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:24,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:24,413 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 01:13:24,417 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511852342] [2019-10-15 01:13:24,418 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:24,418 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:13:24,418 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477612447] [2019-10-15 01:13:24,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:13:24,419 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:24,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:13:24,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:13:24,420 INFO L87 Difference]: Start difference. First operand 1358 states and 1964 transitions. Second operand 9 states. [2019-10-15 01:13:24,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:24,730 INFO L93 Difference]: Finished difference Result 1819 states and 2569 transitions. [2019-10-15 01:13:24,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:13:24,730 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2019-10-15 01:13:24,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:24,739 INFO L225 Difference]: With dead ends: 1819 [2019-10-15 01:13:24,739 INFO L226 Difference]: Without dead ends: 1393 [2019-10-15 01:13:24,742 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:13:24,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2019-10-15 01:13:24,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1393. [2019-10-15 01:13:24,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1393 states. [2019-10-15 01:13:24,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 2018 transitions. [2019-10-15 01:13:24,829 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 2018 transitions. Word has length 156 [2019-10-15 01:13:24,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:24,829 INFO L462 AbstractCegarLoop]: Abstraction has 1393 states and 2018 transitions. [2019-10-15 01:13:24,830 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:13:24,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 2018 transitions. [2019-10-15 01:13:24,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 01:13:24,837 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:24,837 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] [2019-10-15 01:13:24,837 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:24,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:24,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1109181897, now seen corresponding path program 1 times [2019-10-15 01:13:24,838 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:24,838 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195579163] [2019-10-15 01:13:24,838 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:24,839 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:24,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:24,993 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 01:13:24,994 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195579163] [2019-10-15 01:13:24,994 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:24,994 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:13:24,995 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013631304] [2019-10-15 01:13:24,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:13:24,997 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:24,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:13:24,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:13:24,998 INFO L87 Difference]: Start difference. First operand 1393 states and 2018 transitions. Second operand 5 states. [2019-10-15 01:13:25,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:25,969 INFO L93 Difference]: Finished difference Result 3181 states and 4504 transitions. [2019-10-15 01:13:25,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:25,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2019-10-15 01:13:25,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:25,987 INFO L225 Difference]: With dead ends: 3181 [2019-10-15 01:13:25,988 INFO L226 Difference]: Without dead ends: 2740 [2019-10-15 01:13:25,992 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:13:25,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2019-10-15 01:13:26,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2524. [2019-10-15 01:13:26,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2524 states. [2019-10-15 01:13:26,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2524 states to 2524 states and 3568 transitions. [2019-10-15 01:13:26,201 INFO L78 Accepts]: Start accepts. Automaton has 2524 states and 3568 transitions. Word has length 156 [2019-10-15 01:13:26,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:26,201 INFO L462 AbstractCegarLoop]: Abstraction has 2524 states and 3568 transitions. [2019-10-15 01:13:26,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:13:26,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2524 states and 3568 transitions. [2019-10-15 01:13:26,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 01:13:26,210 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:26,210 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] [2019-10-15 01:13:26,211 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:26,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:26,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1175681558, now seen corresponding path program 1 times [2019-10-15 01:13:26,212 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:26,213 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222295758] [2019-10-15 01:13:26,213 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:26,213 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:26,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:26,465 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 01:13:26,465 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222295758] [2019-10-15 01:13:26,466 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:26,466 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:13:26,466 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279753441] [2019-10-15 01:13:26,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:13:26,467 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:26,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:13:26,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:13:26,467 INFO L87 Difference]: Start difference. First operand 2524 states and 3568 transitions. Second operand 9 states. [2019-10-15 01:13:26,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:26,756 INFO L93 Difference]: Finished difference Result 2839 states and 3975 transitions. [2019-10-15 01:13:26,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:13:26,756 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2019-10-15 01:13:26,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:26,762 INFO L225 Difference]: With dead ends: 2839 [2019-10-15 01:13:26,762 INFO L226 Difference]: Without dead ends: 966 [2019-10-15 01:13:26,769 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:13:26,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2019-10-15 01:13:26,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 964. [2019-10-15 01:13:26,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 964 states. [2019-10-15 01:13:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1348 transitions. [2019-10-15 01:13:26,829 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1348 transitions. Word has length 156 [2019-10-15 01:13:26,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:26,830 INFO L462 AbstractCegarLoop]: Abstraction has 964 states and 1348 transitions. [2019-10-15 01:13:26,830 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:13:26,830 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1348 transitions. [2019-10-15 01:13:26,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 01:13:26,834 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:26,834 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] [2019-10-15 01:13:26,834 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:26,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:26,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1475896574, now seen corresponding path program 2 times [2019-10-15 01:13:26,835 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:26,836 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916224650] [2019-10-15 01:13:26,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:26,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:26,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:27,329 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 01:13:27,329 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916224650] [2019-10-15 01:13:27,330 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:27,330 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-15 01:13:27,330 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314005554] [2019-10-15 01:13:27,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-15 01:13:27,336 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:27,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-15 01:13:27,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:13:27,338 INFO L87 Difference]: Start difference. First operand 964 states and 1348 transitions. Second operand 23 states. [2019-10-15 01:13:33,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:33,578 INFO L93 Difference]: Finished difference Result 3840 states and 5359 transitions. [2019-10-15 01:13:33,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2019-10-15 01:13:33,579 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 156 [2019-10-15 01:13:33,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:33,599 INFO L225 Difference]: With dead ends: 3840 [2019-10-15 01:13:33,599 INFO L226 Difference]: Without dead ends: 3447 [2019-10-15 01:13:33,604 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1613 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=726, Invalid=5436, Unknown=0, NotChecked=0, Total=6162 [2019-10-15 01:13:33,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2019-10-15 01:13:33,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 2519. [2019-10-15 01:13:33,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2519 states. [2019-10-15 01:13:33,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3560 transitions. [2019-10-15 01:13:33,766 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3560 transitions. Word has length 156 [2019-10-15 01:13:33,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:33,766 INFO L462 AbstractCegarLoop]: Abstraction has 2519 states and 3560 transitions. [2019-10-15 01:13:33,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-15 01:13:33,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3560 transitions. [2019-10-15 01:13:33,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-15 01:13:33,774 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:33,775 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] [2019-10-15 01:13:33,775 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:33,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:33,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1644365759, now seen corresponding path program 2 times [2019-10-15 01:13:33,776 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:33,776 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293750152] [2019-10-15 01:13:33,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:33,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:33,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:33,935 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 01:13:33,936 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293750152] [2019-10-15 01:13:33,936 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:33,936 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:13:33,936 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294561304] [2019-10-15 01:13:33,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:13:33,937 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:33,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:13:33,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:13:33,938 INFO L87 Difference]: Start difference. First operand 2519 states and 3560 transitions. Second operand 7 states. [2019-10-15 01:13:34,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:34,183 INFO L93 Difference]: Finished difference Result 2834 states and 3967 transitions. [2019-10-15 01:13:34,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:13:34,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2019-10-15 01:13:34,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:34,189 INFO L225 Difference]: With dead ends: 2834 [2019-10-15 01:13:34,189 INFO L226 Difference]: Without dead ends: 966 [2019-10-15 01:13:34,195 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:13:34,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2019-10-15 01:13:34,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 964. [2019-10-15 01:13:34,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 964 states. [2019-10-15 01:13:34,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1347 transitions. [2019-10-15 01:13:34,241 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1347 transitions. Word has length 157 [2019-10-15 01:13:34,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:34,242 INFO L462 AbstractCegarLoop]: Abstraction has 964 states and 1347 transitions. [2019-10-15 01:13:34,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:13:34,242 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1347 transitions. [2019-10-15 01:13:34,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-15 01:13:34,246 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:34,246 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:34,247 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:34,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:34,247 INFO L82 PathProgramCache]: Analyzing trace with hash -694323250, now seen corresponding path program 3 times [2019-10-15 01:13:34,247 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:34,247 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122755378] [2019-10-15 01:13:34,248 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:34,248 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:34,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:34,682 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 01:13:34,682 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122755378] [2019-10-15 01:13:34,682 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:34,683 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-15 01:13:34,683 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826673750] [2019-10-15 01:13:34,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-15 01:13:34,684 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:34,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-15 01:13:34,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=544, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:13:34,684 INFO L87 Difference]: Start difference. First operand 964 states and 1347 transitions. Second operand 25 states.