java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec8_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:17:01,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:17:01,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:17:01,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:17:01,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:17:01,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:17:01,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:17:01,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:17:01,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:17:01,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:17:01,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:17:01,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:17:01,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:17:01,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:17:01,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:17:01,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:17:01,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:17:01,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:17:01,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:17:01,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:17:01,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:17:01,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:17:01,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:17:01,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:17:01,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:17:01,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:17:01,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:17:01,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:17:01,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:17:01,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:17:01,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:17:01,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:17:01,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:17:01,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:17:01,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:17:01,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:17:01,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:17:01,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:17:01,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:17:01,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:17:01,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:17:01,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:17:01,571 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:17:01,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:17:01,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:17:01,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:17:01,573 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:17:01,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:17:01,573 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:17:01,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:17:01,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:17:01,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:17:01,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:17:01,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:17:01,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:17:01,575 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:17:01,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:17:01,575 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:17:01,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:17:01,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:17:01,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:17:01,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:17:01,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:17:01,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:17:01,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:17:01,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:17:01,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:17:01,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:17:01,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:17:01,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:17:01,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:17:01,900 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:17:01,919 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:17:01,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:17:01,925 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:17:01,925 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:17:01,927 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product14.cil.c [2019-10-15 01:17:02,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f31931b9/4911b297fa0a49749b159bfa7ad23fbb/FLAG615387194 [2019-10-15 01:17:02,706 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:17:02,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product14.cil.c [2019-10-15 01:17:02,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f31931b9/4911b297fa0a49749b159bfa7ad23fbb/FLAG615387194 [2019-10-15 01:17:02,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f31931b9/4911b297fa0a49749b159bfa7ad23fbb [2019-10-15 01:17:02,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:17:02,955 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:17:02,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:17:02,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:17:02,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:17:02,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:17:02" (1/1) ... [2019-10-15 01:17:02,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112cb494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:02, skipping insertion in model container [2019-10-15 01:17:02,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:17:02" (1/1) ... [2019-10-15 01:17:02,970 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:17:03,058 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:17:03,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:17:03,938 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:17:04,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:17:04,135 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:17:04,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04 WrapperNode [2019-10-15 01:17:04,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:17:04,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:17:04,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:17:04,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:17:04,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... [2019-10-15 01:17:04,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... [2019-10-15 01:17:04,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... [2019-10-15 01:17:04,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... [2019-10-15 01:17:04,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... [2019-10-15 01:17:04,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... [2019-10-15 01:17:04,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... [2019-10-15 01:17:04,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:17:04,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:17:04,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:17:04,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:17:04,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:17:04,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:17:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:17:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:17:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:17:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:17:04,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:17:04,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:17:04,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:17:04,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:17:04,446 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:17:04,446 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:17:04,446 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:17:04,446 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:17:04,446 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:17:04,447 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:17:04,447 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 01:17:04,447 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:17:04,447 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:17:04,448 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:17:04,449 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:17:04,449 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:17:04,449 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:17:04,450 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:17:04,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:17:04,450 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:17:04,451 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:17:04,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:17:04,451 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:17:04,451 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:17:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:17:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:17:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:17:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:17:04,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 01:17:04,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 01:17:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:17:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:17:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:17:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:17:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:17:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:17:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:17:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:17:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:17:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:17:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:17:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:17:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:17:04,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:17:04,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:17:04,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:17:04,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:17:04,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:17:04,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:17:04,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:17:04,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:17:04,459 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:17:04,459 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:17:04,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:17:04,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:17:04,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:17:04,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:17:04,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:17:04,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:17:04,461 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:17:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:17:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:17:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:17:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:17:04,463 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:17:04,463 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:17:04,463 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:17:04,463 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:17:04,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:17:04,465 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:17:04,465 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:17:04,465 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:17:04,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:17:04,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:17:04,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:17:04,467 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:17:04,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:17:04,468 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:17:04,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:17:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:17:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:17:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:17:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:17:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:17:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:17:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:17:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:17:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:17:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:17:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:17:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:17:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:17:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:17:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:17:04,472 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:17:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:17:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:17:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:17:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:17:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:17:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:17:04,474 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:17:04,474 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:17:04,474 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:17:04,475 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:17:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:17:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:17:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:17:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:17:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:17:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:17:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:17:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:17:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:17:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:17:04,478 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:17:04,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:17:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:17:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:17:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:17:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:17:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:17:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:17:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:17:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:17:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:17:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:17:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:17:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:17:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:17:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:17:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:17:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:17:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:17:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:17:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:17:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:17:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:17:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:17:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:17:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:17:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:17:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:17:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:17:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:17:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:17:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:17:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:17:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:17:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:17:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:17:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:17:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:17:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:17:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:17:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 01:17:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:17:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:17:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 01:17:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 01:17:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:17:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:17:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:17:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:17:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:17:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:17:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:17:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:17:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:17:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:17:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:17:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:17:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:17:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:17:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:17:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:17:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:17:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:17:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:17:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:17:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:17:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:17:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:17:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:17:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:17:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:17:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:17:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:17:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:17:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:17:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:17:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:17:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:17:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:17:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:17:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:17:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:17:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:17:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:17:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:17:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:17:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:17:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:17:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:17:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:17:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:17:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:17:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:17:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:17:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:17:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:17:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:17:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:17:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:17:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:17:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:17:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:17:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:17:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:17:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:17:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:17:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:17:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:17:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:17:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:17:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:17:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:17:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:17:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:17:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:17:06,696 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:17:06,696 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:17:06,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:17:06 BoogieIcfgContainer [2019-10-15 01:17:06,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:17:06,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:17:06,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:17:06,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:17:06,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:17:02" (1/3) ... [2019-10-15 01:17:06,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b32cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:17:06, skipping insertion in model container [2019-10-15 01:17:06,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:04" (2/3) ... [2019-10-15 01:17:06,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b32cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:17:06, skipping insertion in model container [2019-10-15 01:17:06,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:17:06" (3/3) ... [2019-10-15 01:17:06,706 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product14.cil.c [2019-10-15 01:17:06,717 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:17:06,728 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:17:06,740 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:17:06,771 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:17:06,771 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:17:06,771 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:17:06,771 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:17:06,771 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:17:06,771 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:17:06,772 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:17:06,772 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:17:06,804 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states. [2019-10-15 01:17:06,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 01:17:06,826 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:06,827 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:06,830 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:06,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:06,837 INFO L82 PathProgramCache]: Analyzing trace with hash 601456659, now seen corresponding path program 1 times [2019-10-15 01:17:06,848 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:06,848 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812752539] [2019-10-15 01:17:06,849 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:06,849 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:06,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:07,553 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:17:07,553 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812752539] [2019-10-15 01:17:07,554 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:07,555 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:17:07,555 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181752624] [2019-10-15 01:17:07,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:17:07,562 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:07,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:17:07,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:17:07,580 INFO L87 Difference]: Start difference. First operand 521 states. Second operand 2 states. [2019-10-15 01:17:07,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:07,690 INFO L93 Difference]: Finished difference Result 695 states and 958 transitions. [2019-10-15 01:17:07,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:17:07,692 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-15 01:17:07,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:07,714 INFO L225 Difference]: With dead ends: 695 [2019-10-15 01:17:07,715 INFO L226 Difference]: Without dead ends: 470 [2019-10-15 01:17:07,721 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:17:07,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2019-10-15 01:17:07,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2019-10-15 01:17:07,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2019-10-15 01:17:07,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 651 transitions. [2019-10-15 01:17:07,832 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 651 transitions. Word has length 154 [2019-10-15 01:17:07,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:07,834 INFO L462 AbstractCegarLoop]: Abstraction has 470 states and 651 transitions. [2019-10-15 01:17:07,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:17:07,835 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 651 transitions. [2019-10-15 01:17:07,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 01:17:07,840 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:07,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:07,841 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:07,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:07,841 INFO L82 PathProgramCache]: Analyzing trace with hash -855609359, now seen corresponding path program 1 times [2019-10-15 01:17:07,842 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:07,842 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791961650] [2019-10-15 01:17:07,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:07,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:07,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:08,045 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:17:08,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791961650] [2019-10-15 01:17:08,046 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:08,046 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:08,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501009705] [2019-10-15 01:17:08,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:08,049 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:08,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:08,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:08,049 INFO L87 Difference]: Start difference. First operand 470 states and 651 transitions. Second operand 3 states. [2019-10-15 01:17:08,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:08,129 INFO L93 Difference]: Finished difference Result 678 states and 924 transitions. [2019-10-15 01:17:08,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:08,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-15 01:17:08,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:08,135 INFO L225 Difference]: With dead ends: 678 [2019-10-15 01:17:08,135 INFO L226 Difference]: Without dead ends: 473 [2019-10-15 01:17:08,139 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:08,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-10-15 01:17:08,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 472. [2019-10-15 01:17:08,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2019-10-15 01:17:08,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 653 transitions. [2019-10-15 01:17:08,189 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 653 transitions. Word has length 155 [2019-10-15 01:17:08,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:08,190 INFO L462 AbstractCegarLoop]: Abstraction has 472 states and 653 transitions. [2019-10-15 01:17:08,190 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:08,190 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 653 transitions. [2019-10-15 01:17:08,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-15 01:17:08,195 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:08,195 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:08,195 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:08,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:08,196 INFO L82 PathProgramCache]: Analyzing trace with hash 85272997, now seen corresponding path program 1 times [2019-10-15 01:17:08,196 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:08,196 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980207040] [2019-10-15 01:17:08,196 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:08,196 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:08,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:08,567 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:17:08,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980207040] [2019-10-15 01:17:08,568 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:08,568 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:08,569 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655835181] [2019-10-15 01:17:08,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:08,576 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:08,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:08,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:08,577 INFO L87 Difference]: Start difference. First operand 472 states and 653 transitions. Second operand 3 states. [2019-10-15 01:17:08,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:08,644 INFO L93 Difference]: Finished difference Result 920 states and 1304 transitions. [2019-10-15 01:17:08,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:08,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-15 01:17:08,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:08,657 INFO L225 Difference]: With dead ends: 920 [2019-10-15 01:17:08,657 INFO L226 Difference]: Without dead ends: 513 [2019-10-15 01:17:08,661 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:08,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2019-10-15 01:17:08,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 512. [2019-10-15 01:17:08,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2019-10-15 01:17:08,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 722 transitions. [2019-10-15 01:17:08,723 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 722 transitions. Word has length 161 [2019-10-15 01:17:08,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:08,725 INFO L462 AbstractCegarLoop]: Abstraction has 512 states and 722 transitions. [2019-10-15 01:17:08,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:08,725 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 722 transitions. [2019-10-15 01:17:08,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 01:17:08,734 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:08,734 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:08,734 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:08,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:08,735 INFO L82 PathProgramCache]: Analyzing trace with hash 549891817, now seen corresponding path program 1 times [2019-10-15 01:17:08,735 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:08,735 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022578722] [2019-10-15 01:17:08,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:08,736 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:08,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:09,793 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:17:09,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022578722] [2019-10-15 01:17:09,794 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:09,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-10-15 01:17:09,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574196281] [2019-10-15 01:17:09,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-15 01:17:09,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:09,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-15 01:17:09,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=858, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:17:09,797 INFO L87 Difference]: Start difference. First operand 512 states and 722 transitions. Second operand 31 states. [2019-10-15 01:17:15,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:15,016 INFO L93 Difference]: Finished difference Result 1474 states and 2120 transitions. [2019-10-15 01:17:15,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 01:17:15,020 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 162 [2019-10-15 01:17:15,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:15,035 INFO L225 Difference]: With dead ends: 1474 [2019-10-15 01:17:15,035 INFO L226 Difference]: Without dead ends: 998 [2019-10-15 01:17:15,039 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=252, Invalid=3054, Unknown=0, NotChecked=0, Total=3306 [2019-10-15 01:17:15,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2019-10-15 01:17:15,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 768. [2019-10-15 01:17:15,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-10-15 01:17:15,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1133 transitions. [2019-10-15 01:17:15,123 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1133 transitions. Word has length 162 [2019-10-15 01:17:15,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:15,124 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 1133 transitions. [2019-10-15 01:17:15,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-15 01:17:15,124 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1133 transitions. [2019-10-15 01:17:15,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-15 01:17:15,133 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:15,133 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:15,133 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:15,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:15,134 INFO L82 PathProgramCache]: Analyzing trace with hash 128931203, now seen corresponding path program 1 times [2019-10-15 01:17:15,134 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:15,135 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821892227] [2019-10-15 01:17:15,135 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:15,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:15,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:16,077 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:17:16,078 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821892227] [2019-10-15 01:17:16,078 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856591575] [2019-10-15 01:17:16,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:17:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:16,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 2525 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:17:16,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:17:16,853 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:17:16,854 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:17:17,195 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:17,361 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:17,442 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:17:17,442 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:17:17,443 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [31, 7] total 39 [2019-10-15 01:17:17,443 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404625572] [2019-10-15 01:17:17,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:17:17,444 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:17,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:17:17,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2019-10-15 01:17:17,445 INFO L87 Difference]: Start difference. First operand 768 states and 1133 transitions. Second operand 7 states. [2019-10-15 01:17:18,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:18,841 INFO L93 Difference]: Finished difference Result 1489 states and 2219 transitions. [2019-10-15 01:17:18,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:17:18,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 163 [2019-10-15 01:17:18,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:18,849 INFO L225 Difference]: With dead ends: 1489 [2019-10-15 01:17:18,849 INFO L226 Difference]: Without dead ends: 772 [2019-10-15 01:17:18,853 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 318 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-15 01:17:18,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2019-10-15 01:17:18,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 772. [2019-10-15 01:17:18,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2019-10-15 01:17:18,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1138 transitions. [2019-10-15 01:17:18,901 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1138 transitions. Word has length 163 [2019-10-15 01:17:18,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:18,902 INFO L462 AbstractCegarLoop]: Abstraction has 772 states and 1138 transitions. [2019-10-15 01:17:18,902 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:17:18,902 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1138 transitions. [2019-10-15 01:17:18,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-15 01:17:18,907 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:18,907 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:19,127 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:17:19,127 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:19,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:19,128 INFO L82 PathProgramCache]: Analyzing trace with hash -720765904, now seen corresponding path program 1 times [2019-10-15 01:17:19,128 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:19,129 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806895737] [2019-10-15 01:17:19,129 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:19,129 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:19,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:20,059 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:17:20,059 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806895737] [2019-10-15 01:17:20,060 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:20,060 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 01:17:20,060 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824370862] [2019-10-15 01:17:20,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 01:17:20,062 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:20,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 01:17:20,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:17:20,063 INFO L87 Difference]: Start difference. First operand 772 states and 1138 transitions. Second operand 26 states. [2019-10-15 01:17:29,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:29,260 INFO L93 Difference]: Finished difference Result 2340 states and 3347 transitions. [2019-10-15 01:17:29,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2019-10-15 01:17:29,260 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 164 [2019-10-15 01:17:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:29,275 INFO L225 Difference]: With dead ends: 2340 [2019-10-15 01:17:29,276 INFO L226 Difference]: Without dead ends: 2144 [2019-10-15 01:17:29,280 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1469 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=710, Invalid=5452, Unknown=0, NotChecked=0, Total=6162 [2019-10-15 01:17:29,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2019-10-15 01:17:29,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 1688. [2019-10-15 01:17:29,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1688 states. [2019-10-15 01:17:29,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1688 states to 1688 states and 2483 transitions. [2019-10-15 01:17:29,381 INFO L78 Accepts]: Start accepts. Automaton has 1688 states and 2483 transitions. Word has length 164 [2019-10-15 01:17:29,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:29,382 INFO L462 AbstractCegarLoop]: Abstraction has 1688 states and 2483 transitions. [2019-10-15 01:17:29,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 01:17:29,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1688 states and 2483 transitions. [2019-10-15 01:17:29,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:17:29,389 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:29,390 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:29,390 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:29,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:29,390 INFO L82 PathProgramCache]: Analyzing trace with hash 740705910, now seen corresponding path program 1 times [2019-10-15 01:17:29,391 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:29,391 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101868110] [2019-10-15 01:17:29,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:29,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:29,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:29,535 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:17:29,536 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101868110] [2019-10-15 01:17:29,536 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:29,536 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:29,536 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964711159] [2019-10-15 01:17:29,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:29,538 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:29,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:29,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:29,539 INFO L87 Difference]: Start difference. First operand 1688 states and 2483 transitions. Second operand 5 states. [2019-10-15 01:17:29,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:29,656 INFO L93 Difference]: Finished difference Result 2078 states and 3000 transitions. [2019-10-15 01:17:29,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:17:29,658 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2019-10-15 01:17:29,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:29,673 INFO L225 Difference]: With dead ends: 2078 [2019-10-15 01:17:29,673 INFO L226 Difference]: Without dead ends: 1685 [2019-10-15 01:17:29,678 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:17:29,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2019-10-15 01:17:29,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1685. [2019-10-15 01:17:29,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1685 states. [2019-10-15 01:17:29,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2478 transitions. [2019-10-15 01:17:29,810 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2478 transitions. Word has length 165 [2019-10-15 01:17:29,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:29,811 INFO L462 AbstractCegarLoop]: Abstraction has 1685 states and 2478 transitions. [2019-10-15 01:17:29,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:29,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2478 transitions. [2019-10-15 01:17:29,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:17:29,821 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:29,821 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:29,821 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:29,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:29,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1032194206, now seen corresponding path program 1 times [2019-10-15 01:17:29,822 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:29,823 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965934701] [2019-10-15 01:17:29,823 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:29,823 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:29,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:30,229 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:17:30,230 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965934701] [2019-10-15 01:17:30,230 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:30,230 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:17:30,230 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882320692] [2019-10-15 01:17:30,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:17:30,231 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:30,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:17:30,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:17:30,232 INFO L87 Difference]: Start difference. First operand 1685 states and 2478 transitions. Second operand 11 states. [2019-10-15 01:17:30,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:30,706 INFO L93 Difference]: Finished difference Result 2351 states and 3398 transitions. [2019-10-15 01:17:30,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:17:30,706 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 165 [2019-10-15 01:17:30,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:30,719 INFO L225 Difference]: With dead ends: 2351 [2019-10-15 01:17:30,720 INFO L226 Difference]: Without dead ends: 1765 [2019-10-15 01:17:30,725 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:17:30,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2019-10-15 01:17:30,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1765. [2019-10-15 01:17:30,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1765 states. [2019-10-15 01:17:30,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 2604 transitions. [2019-10-15 01:17:30,844 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 2604 transitions. Word has length 165 [2019-10-15 01:17:30,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:30,846 INFO L462 AbstractCegarLoop]: Abstraction has 1765 states and 2604 transitions. [2019-10-15 01:17:30,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:17:30,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 2604 transitions. [2019-10-15 01:17:30,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:17:30,853 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:30,854 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:30,854 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:30,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:30,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1814174100, now seen corresponding path program 1 times [2019-10-15 01:17:30,855 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:30,856 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574283861] [2019-10-15 01:17:30,856 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:30,856 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:30,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:31,032 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:17:31,033 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574283861] [2019-10-15 01:17:31,033 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:31,033 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:31,033 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228289859] [2019-10-15 01:17:31,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:31,034 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:31,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:31,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:31,035 INFO L87 Difference]: Start difference. First operand 1765 states and 2604 transitions. Second operand 5 states. [2019-10-15 01:17:32,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:32,115 INFO L93 Difference]: Finished difference Result 4217 states and 6112 transitions. [2019-10-15 01:17:32,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:17:32,116 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2019-10-15 01:17:32,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:32,141 INFO L225 Difference]: With dead ends: 4217 [2019-10-15 01:17:32,141 INFO L226 Difference]: Without dead ends: 3584 [2019-10-15 01:17:32,147 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 01:17:32,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2019-10-15 01:17:32,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3324. [2019-10-15 01:17:32,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3324 states. [2019-10-15 01:17:32,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 4809 transitions. [2019-10-15 01:17:32,487 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 4809 transitions. Word has length 165 [2019-10-15 01:17:32,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:32,491 INFO L462 AbstractCegarLoop]: Abstraction has 3324 states and 4809 transitions. [2019-10-15 01:17:32,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:32,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 4809 transitions. [2019-10-15 01:17:32,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:17:32,510 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:32,510 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:32,510 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:32,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:32,511 INFO L82 PathProgramCache]: Analyzing trace with hash -195929741, now seen corresponding path program 1 times [2019-10-15 01:17:32,511 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:32,512 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044343175] [2019-10-15 01:17:32,512 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:32,512 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:32,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:32,743 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:17:32,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044343175] [2019-10-15 01:17:32,744 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:32,744 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:17:32,744 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203681477] [2019-10-15 01:17:32,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:17:32,750 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:32,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:17:32,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:17:32,751 INFO L87 Difference]: Start difference. First operand 3324 states and 4809 transitions. Second operand 9 states. [2019-10-15 01:17:33,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:33,106 INFO L93 Difference]: Finished difference Result 3771 states and 5413 transitions. [2019-10-15 01:17:33,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:17:33,106 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 165 [2019-10-15 01:17:33,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:33,116 INFO L225 Difference]: With dead ends: 3771 [2019-10-15 01:17:33,116 INFO L226 Difference]: Without dead ends: 1258 [2019-10-15 01:17:33,125 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:17:33,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2019-10-15 01:17:33,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1256. [2019-10-15 01:17:33,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1256 states. [2019-10-15 01:17:33,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1797 transitions. [2019-10-15 01:17:33,192 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1797 transitions. Word has length 165 [2019-10-15 01:17:33,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:33,192 INFO L462 AbstractCegarLoop]: Abstraction has 1256 states and 1797 transitions. [2019-10-15 01:17:33,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:17:33,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1797 transitions. [2019-10-15 01:17:33,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:17:33,197 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:33,198 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:33,198 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:33,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:33,198 INFO L82 PathProgramCache]: Analyzing trace with hash -822700062, now seen corresponding path program 2 times [2019-10-15 01:17:33,199 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:33,199 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847663311] [2019-10-15 01:17:33,199 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:33,199 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:33,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:33,672 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 01:17:33,673 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847663311] [2019-10-15 01:17:33,673 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:33,673 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-15 01:17:33,673 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921867386] [2019-10-15 01:17:33,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 01:17:33,674 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:33,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 01:17:33,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2019-10-15 01:17:33,675 INFO L87 Difference]: Start difference. First operand 1256 states and 1797 transitions. Second operand 24 states.