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_spec4_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:16:46,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:16:46,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:16:46,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:16:46,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:16:46,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:16:46,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:16:46,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:16:46,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:16:46,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:16:46,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:16:46,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:16:46,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:16:46,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:16:46,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:16:46,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:16:46,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:16:46,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:16:46,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:16:46,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:16:46,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:16:46,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:16:46,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:16:46,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:16:46,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:16:46,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:16:46,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:16:46,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:16:46,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:16:46,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:16:46,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:16:46,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:16:46,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:16:46,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:16:46,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:16:46,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:16:46,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:16:46,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:16:46,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:16:46,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:16:46,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:16:46,571 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:16:46,586 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:16:46,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:16:46,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:16:46,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:16:46,588 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:16:46,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:16:46,588 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:16:46,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:16:46,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:16:46,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:16:46,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:16:46,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:16:46,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:16:46,590 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:16:46,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:16:46,590 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:16:46,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:16:46,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:16:46,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:16:46,591 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:16:46,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:16:46,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:16:46,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:16:46,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:16:46,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:16:46,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:16:46,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:16:46,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:16:46,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:16:46,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:16:46,885 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:16:46,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:16:46,890 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:16:46,891 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:16:46,891 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_productSimulator.cil.c [2019-10-13 21:16:46,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7ad59c87/a9306de524094a62969d6c0f8af94dd5/FLAGa7611417b [2019-10-13 21:16:47,660 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:16:47,660 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_productSimulator.cil.c [2019-10-13 21:16:47,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7ad59c87/a9306de524094a62969d6c0f8af94dd5/FLAGa7611417b [2019-10-13 21:16:47,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7ad59c87/a9306de524094a62969d6c0f8af94dd5 [2019-10-13 21:16:47,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:16:47,857 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:16:47,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:16:47,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:16:47,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:16:47,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:16:47" (1/1) ... [2019-10-13 21:16:47,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b04d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:47, skipping insertion in model container [2019-10-13 21:16:47,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:16:47" (1/1) ... [2019-10-13 21:16:47,875 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:16:47,975 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:16:48,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:16:48,722 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:16:48,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:16:49,075 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:16:49,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:49 WrapperNode [2019-10-13 21:16:49,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:16:49,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:16:49,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:16:49,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:16:49,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:49" (1/1) ... [2019-10-13 21:16:49,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:49" (1/1) ... [2019-10-13 21:16:49,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:49" (1/1) ... [2019-10-13 21:16:49,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:49" (1/1) ... [2019-10-13 21:16:49,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:49" (1/1) ... [2019-10-13 21:16:49,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:49" (1/1) ... [2019-10-13 21:16:49,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:49" (1/1) ... [2019-10-13 21:16:49,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:16:49,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:16:49,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:16:49,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:16:49,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:16:49,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:16:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:16:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:16:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:16:49,413 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:16:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:16:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-13 21:16:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-13 21:16:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-13 21:16:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-13 21:16:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-13 21:16:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-13 21:16:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:16:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:16:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-13 21:16:49,418 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-13 21:16:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-13 21:16:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-13 21:16:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-13 21:16:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-13 21:16:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-13 21:16:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-13 21:16:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:16:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:16:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:16:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:16:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:16:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:16:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:16:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:16:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:16:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:16:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:16:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:16:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:16:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:16:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:16:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:16:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:16:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:16:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:16:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:16:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:16:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:16:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:16:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:16:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:16:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:16:49,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:16:49,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:16:49,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:16:49,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:16:49,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:16:49,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:16:49,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:16:49,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:16:49,430 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:16:49,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:16:49,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:16:49,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:16:49,431 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:16:49,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:16:49,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:16:49,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:16:49,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:16:49,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:16:49,433 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:16:49,433 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:16:49,434 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:16:49,434 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:16:49,434 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:16:49,434 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:16:49,435 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:16:49,436 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:16:49,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:16:49,436 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:16:49,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:16:49,437 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:16:49,437 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:16:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:16:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:16:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:16:49,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:16:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:16:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:16:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:16:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:16:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:16:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:16:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:16:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:16:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-13 21:16:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-13 21:16:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:16:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-13 21:16:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-13 21:16:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:16:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-13 21:16:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-13 21:16:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:16:49,443 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:16:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:16:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:16:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:16:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:16:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:16:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:16:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:16:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:16:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:16:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:16:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:16:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:16:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:16:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:16:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:16:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-13 21:16:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-13 21:16:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-13 21:16:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-13 21:16:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-13 21:16:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-13 21:16:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:16:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-13 21:16:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-13 21:16:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:16:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:16:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:16:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:16:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:16:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:16:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:16:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:16:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:16:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-13 21:16:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:16:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:16:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:16:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:16:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:16:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:16:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:16:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:16:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:16:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:16:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:16:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:16:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:16:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:16:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:16:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:16:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:16:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:16:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:16:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:16:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:16:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:16:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:16:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:16:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:16:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:16:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:16:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:16:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:16:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:16:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:16:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:16:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:16:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:16:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:16:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:16:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:16:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:16:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:16:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:16:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:16:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:16:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:16:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:16:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:16:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:16:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:16:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:16:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:16:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:16:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:16:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:16:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:16:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:16:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:16:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:16:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:16:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:16:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:16:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:16:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-13 21:16:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-13 21:16:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-13 21:16:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-13 21:16:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-13 21:16:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-13 21:16:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-13 21:16:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-13 21:16:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-13 21:16:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-13 21:16:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-13 21:16:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-13 21:16:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-13 21:16:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-13 21:16:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-13 21:16:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:16:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:16:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:16:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:16:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:16:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:16:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:16:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:16:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:16:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:16:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:16:49,492 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:16:49,492 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:16:49,492 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:16:49,492 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:16:49,492 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:16:49,492 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:16:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:16:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:16:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:16:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:16:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:16:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:16:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:16:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:16:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:16:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:16:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:16:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:16:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:16:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:16:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:16:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:16:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:16:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:16:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:16:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:16:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:16:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:16:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:16:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:16:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-13 21:16:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-13 21:16:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-13 21:16:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-13 21:16:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-13 21:16:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-13 21:16:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:16:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-13 21:16:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-13 21:16:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-13 21:16:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-13 21:16:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-13 21:16:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-13 21:16:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-13 21:16:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-13 21:16:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:16:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:16:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:16:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:16:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:16:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:16:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:16:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:16:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:16:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:16:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:16:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:16:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:16:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:16:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:16:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:16:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:16:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:16:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:16:52,028 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:16:52,028 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:16:52,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:16:52 BoogieIcfgContainer [2019-10-13 21:16:52,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:16:52,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:16:52,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:16:52,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:16:52,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:16:47" (1/3) ... [2019-10-13 21:16:52,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e1edd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:16:52, skipping insertion in model container [2019-10-13 21:16:52,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:49" (2/3) ... [2019-10-13 21:16:52,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e1edd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:16:52, skipping insertion in model container [2019-10-13 21:16:52,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:16:52" (3/3) ... [2019-10-13 21:16:52,038 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_productSimulator.cil.c [2019-10-13 21:16:52,048 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:16:52,058 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:16:52,070 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:16:52,102 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:16:52,102 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:16:52,102 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:16:52,102 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:16:52,102 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:16:52,102 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:16:52,103 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:16:52,103 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:16:52,139 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states. [2019-10-13 21:16:52,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-13 21:16:52,162 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:52,164 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:52,166 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:52,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:52,172 INFO L82 PathProgramCache]: Analyzing trace with hash 894970913, now seen corresponding path program 1 times [2019-10-13 21:16:52,183 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:52,183 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878905174] [2019-10-13 21:16:52,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:52,184 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:52,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:52,914 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:16:52,915 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878905174] [2019-10-13 21:16:52,916 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:52,916 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:16:52,917 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480716734] [2019-10-13 21:16:52,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:16:52,924 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:52,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:16:52,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:16:52,943 INFO L87 Difference]: Start difference. First operand 814 states. Second operand 6 states. [2019-10-13 21:16:53,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:53,184 INFO L93 Difference]: Finished difference Result 1546 states and 2137 transitions. [2019-10-13 21:16:53,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:16:53,186 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2019-10-13 21:16:53,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:53,228 INFO L225 Difference]: With dead ends: 1546 [2019-10-13 21:16:53,228 INFO L226 Difference]: Without dead ends: 785 [2019-10-13 21:16:53,242 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:16:53,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2019-10-13 21:16:53,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 785. [2019-10-13 21:16:53,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2019-10-13 21:16:53,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1069 transitions. [2019-10-13 21:16:53,431 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1069 transitions. Word has length 176 [2019-10-13 21:16:53,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:53,434 INFO L462 AbstractCegarLoop]: Abstraction has 785 states and 1069 transitions. [2019-10-13 21:16:53,434 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:16:53,434 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1069 transitions. [2019-10-13 21:16:53,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-13 21:16:53,440 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:53,441 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:53,441 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:53,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:53,441 INFO L82 PathProgramCache]: Analyzing trace with hash 844588009, now seen corresponding path program 1 times [2019-10-13 21:16:53,442 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:53,442 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857491237] [2019-10-13 21:16:53,442 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:53,442 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:53,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:53,688 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:16:53,689 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857491237] [2019-10-13 21:16:53,689 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:53,689 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:16:53,689 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661932220] [2019-10-13 21:16:53,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:16:53,692 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:53,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:16:53,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:16:53,693 INFO L87 Difference]: Start difference. First operand 785 states and 1069 transitions. Second operand 4 states. [2019-10-13 21:16:54,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:54,615 INFO L93 Difference]: Finished difference Result 1529 states and 2109 transitions. [2019-10-13 21:16:54,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:16:54,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 182 [2019-10-13 21:16:54,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:54,626 INFO L225 Difference]: With dead ends: 1529 [2019-10-13 21:16:54,626 INFO L226 Difference]: Without dead ends: 786 [2019-10-13 21:16:54,629 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:16:54,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2019-10-13 21:16:54,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 786. [2019-10-13 21:16:54,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2019-10-13 21:16:54,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1063 transitions. [2019-10-13 21:16:54,680 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1063 transitions. Word has length 182 [2019-10-13 21:16:54,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:54,681 INFO L462 AbstractCegarLoop]: Abstraction has 786 states and 1063 transitions. [2019-10-13 21:16:54,681 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:16:54,681 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1063 transitions. [2019-10-13 21:16:54,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-13 21:16:54,685 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:54,685 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:54,686 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:54,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:54,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1828917881, now seen corresponding path program 1 times [2019-10-13 21:16:54,686 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:54,687 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661037699] [2019-10-13 21:16:54,687 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:54,687 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:54,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:54,853 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:16:54,853 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661037699] [2019-10-13 21:16:54,854 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:54,854 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:16:54,854 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571854945] [2019-10-13 21:16:54,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:16:54,855 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:54,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:16:54,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:16:54,856 INFO L87 Difference]: Start difference. First operand 786 states and 1063 transitions. Second operand 3 states. [2019-10-13 21:16:55,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:55,005 INFO L93 Difference]: Finished difference Result 1523 states and 2087 transitions. [2019-10-13 21:16:55,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:16:55,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-10-13 21:16:55,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:55,012 INFO L225 Difference]: With dead ends: 1523 [2019-10-13 21:16:55,012 INFO L226 Difference]: Without dead ends: 784 [2019-10-13 21:16:55,016 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:16:55,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2019-10-13 21:16:55,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2019-10-13 21:16:55,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-10-13 21:16:55,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1056 transitions. [2019-10-13 21:16:55,056 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1056 transitions. Word has length 197 [2019-10-13 21:16:55,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:55,057 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 1056 transitions. [2019-10-13 21:16:55,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:16:55,057 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1056 transitions. [2019-10-13 21:16:55,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:16:55,062 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:55,062 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:55,062 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:55,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:55,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1474081530, now seen corresponding path program 1 times [2019-10-13 21:16:55,063 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:55,063 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097104052] [2019-10-13 21:16:55,063 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:55,064 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:55,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:55,289 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:16:55,290 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097104052] [2019-10-13 21:16:55,290 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:55,291 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:16:55,291 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854386291] [2019-10-13 21:16:55,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:16:55,292 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:55,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:16:55,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:16:55,293 INFO L87 Difference]: Start difference. First operand 784 states and 1056 transitions. Second operand 4 states. [2019-10-13 21:16:56,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:56,115 INFO L93 Difference]: Finished difference Result 1508 states and 2038 transitions. [2019-10-13 21:16:56,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:16:56,116 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 198 [2019-10-13 21:16:56,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:56,121 INFO L225 Difference]: With dead ends: 1508 [2019-10-13 21:16:56,121 INFO L226 Difference]: Without dead ends: 790 [2019-10-13 21:16:56,124 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:16:56,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-13 21:16:56,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 784. [2019-10-13 21:16:56,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-10-13 21:16:56,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1041 transitions. [2019-10-13 21:16:56,161 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1041 transitions. Word has length 198 [2019-10-13 21:16:56,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:56,162 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 1041 transitions. [2019-10-13 21:16:56,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:16:56,162 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1041 transitions. [2019-10-13 21:16:56,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-13 21:16:56,166 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:56,167 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:56,167 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:56,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:56,168 INFO L82 PathProgramCache]: Analyzing trace with hash -193734372, now seen corresponding path program 1 times [2019-10-13 21:16:56,168 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:56,168 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185529402] [2019-10-13 21:16:56,168 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:56,168 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:56,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:56,390 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2019-10-13 21:16:56,391 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185529402] [2019-10-13 21:16:56,391 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:56,391 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:16:56,392 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369006478] [2019-10-13 21:16:56,392 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:16:56,392 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:56,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:16:56,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:16:56,393 INFO L87 Difference]: Start difference. First operand 784 states and 1041 transitions. Second operand 3 states. [2019-10-13 21:16:56,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:56,435 INFO L93 Difference]: Finished difference Result 1218 states and 1599 transitions. [2019-10-13 21:16:56,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:16:56,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2019-10-13 21:16:56,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:56,441 INFO L225 Difference]: With dead ends: 1218 [2019-10-13 21:16:56,441 INFO L226 Difference]: Without dead ends: 787 [2019-10-13 21:16:56,443 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:16:56,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2019-10-13 21:16:56,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 786. [2019-10-13 21:16:56,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2019-10-13 21:16:56,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1043 transitions. [2019-10-13 21:16:56,479 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1043 transitions. Word has length 225 [2019-10-13 21:16:56,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:56,479 INFO L462 AbstractCegarLoop]: Abstraction has 786 states and 1043 transitions. [2019-10-13 21:16:56,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:16:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1043 transitions. [2019-10-13 21:16:56,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-13 21:16:56,484 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:56,485 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:56,485 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:56,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:56,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1198995616, now seen corresponding path program 1 times [2019-10-13 21:16:56,486 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:56,486 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804093892] [2019-10-13 21:16:56,486 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:56,486 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:56,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:56,678 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2019-10-13 21:16:56,678 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804093892] [2019-10-13 21:16:56,679 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:56,679 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:16:56,679 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701442498] [2019-10-13 21:16:56,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:16:56,680 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:56,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:16:56,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:16:56,681 INFO L87 Difference]: Start difference. First operand 786 states and 1043 transitions. Second operand 3 states. [2019-10-13 21:16:56,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:56,757 INFO L93 Difference]: Finished difference Result 1507 states and 2040 transitions. [2019-10-13 21:16:56,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:16:56,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-10-13 21:16:56,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:56,773 INFO L225 Difference]: With dead ends: 1507 [2019-10-13 21:16:56,773 INFO L226 Difference]: Without dead ends: 841 [2019-10-13 21:16:56,778 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:16:56,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2019-10-13 21:16:56,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 840. [2019-10-13 21:16:56,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 840 states. [2019-10-13 21:16:56,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1131 transitions. [2019-10-13 21:16:56,832 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1131 transitions. Word has length 233 [2019-10-13 21:16:56,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:56,834 INFO L462 AbstractCegarLoop]: Abstraction has 840 states and 1131 transitions. [2019-10-13 21:16:56,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:16:56,834 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1131 transitions. [2019-10-13 21:16:56,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-13 21:16:56,840 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:56,840 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:56,840 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:56,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:56,841 INFO L82 PathProgramCache]: Analyzing trace with hash -814096783, now seen corresponding path program 1 times [2019-10-13 21:16:56,841 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:56,842 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467102280] [2019-10-13 21:16:56,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:56,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:56,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:57,185 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-10-13 21:16:57,186 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467102280] [2019-10-13 21:16:57,186 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:57,186 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:16:57,187 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155192120] [2019-10-13 21:16:57,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:16:57,187 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:57,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:16:57,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:16:57,189 INFO L87 Difference]: Start difference. First operand 840 states and 1131 transitions. Second operand 7 states. [2019-10-13 21:17:01,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:01,875 INFO L93 Difference]: Finished difference Result 1696 states and 2250 transitions. [2019-10-13 21:17:01,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:17:01,875 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 234 [2019-10-13 21:17:01,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:01,884 INFO L225 Difference]: With dead ends: 1696 [2019-10-13 21:17:01,884 INFO L226 Difference]: Without dead ends: 1274 [2019-10-13 21:17:01,887 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:17:01,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2019-10-13 21:17:01,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1265. [2019-10-13 21:17:01,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2019-10-13 21:17:01,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1683 transitions. [2019-10-13 21:17:01,950 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1683 transitions. Word has length 234 [2019-10-13 21:17:01,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:01,953 INFO L462 AbstractCegarLoop]: Abstraction has 1265 states and 1683 transitions. [2019-10-13 21:17:01,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:17:01,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1683 transitions. [2019-10-13 21:17:01,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-10-13 21:17:01,958 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:01,958 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:01,959 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:01,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:01,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1823344465, now seen corresponding path program 1 times [2019-10-13 21:17:01,959 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:01,959 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576715313] [2019-10-13 21:17:01,960 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:01,960 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:01,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:02,508 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-10-13 21:17:02,508 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576715313] [2019-10-13 21:17:02,508 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:02,509 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-13 21:17:02,509 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406563705] [2019-10-13 21:17:02,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-13 21:17:02,510 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:02,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-13 21:17:02,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2019-10-13 21:17:02,511 INFO L87 Difference]: Start difference. First operand 1265 states and 1683 transitions. Second operand 22 states. [2019-10-13 21:17:03,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:03,113 INFO L93 Difference]: Finished difference Result 2197 states and 2903 transitions. [2019-10-13 21:17:03,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-13 21:17:03,114 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 235 [2019-10-13 21:17:03,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:03,123 INFO L225 Difference]: With dead ends: 2197 [2019-10-13 21:17:03,123 INFO L226 Difference]: Without dead ends: 1342 [2019-10-13 21:17:03,127 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-10-13 21:17:03,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2019-10-13 21:17:03,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1340. [2019-10-13 21:17:03,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1340 states. [2019-10-13 21:17:03,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1781 transitions. [2019-10-13 21:17:03,192 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1781 transitions. Word has length 235 [2019-10-13 21:17:03,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:03,193 INFO L462 AbstractCegarLoop]: Abstraction has 1340 states and 1781 transitions. [2019-10-13 21:17:03,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-13 21:17:03,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1781 transitions. [2019-10-13 21:17:03,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-10-13 21:17:03,198 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:03,199 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:03,199 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:03,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:03,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1517774566, now seen corresponding path program 1 times [2019-10-13 21:17:03,200 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:03,200 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607658132] [2019-10-13 21:17:03,200 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:03,200 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:03,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:03,758 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-10-13 21:17:03,759 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607658132] [2019-10-13 21:17:03,759 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:03,759 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-13 21:17:03,759 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492672232] [2019-10-13 21:17:03,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-13 21:17:03,760 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:03,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-13 21:17:03,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2019-10-13 21:17:03,761 INFO L87 Difference]: Start difference. First operand 1340 states and 1781 transitions. Second operand 24 states. [2019-10-13 21:17:04,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:04,606 INFO L93 Difference]: Finished difference Result 2282 states and 3023 transitions. [2019-10-13 21:17:04,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-13 21:17:04,607 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 244 [2019-10-13 21:17:04,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:04,617 INFO L225 Difference]: With dead ends: 2282 [2019-10-13 21:17:04,617 INFO L226 Difference]: Without dead ends: 1432 [2019-10-13 21:17:04,621 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=1037, Unknown=0, NotChecked=0, Total=1122 [2019-10-13 21:17:04,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2019-10-13 21:17:04,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1431. [2019-10-13 21:17:04,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1431 states. [2019-10-13 21:17:04,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1905 transitions. [2019-10-13 21:17:04,700 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1905 transitions. Word has length 244 [2019-10-13 21:17:04,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:04,701 INFO L462 AbstractCegarLoop]: Abstraction has 1431 states and 1905 transitions. [2019-10-13 21:17:04,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-13 21:17:04,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1905 transitions. [2019-10-13 21:17:04,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-10-13 21:17:04,709 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:04,709 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:04,710 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:04,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:04,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1200779726, now seen corresponding path program 1 times [2019-10-13 21:17:04,710 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:04,711 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118567341] [2019-10-13 21:17:04,711 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:04,711 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:04,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:04,940 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-10-13 21:17:04,941 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118567341] [2019-10-13 21:17:04,941 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:04,941 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:04,942 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959068772] [2019-10-13 21:17:04,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:04,944 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:04,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:04,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:04,944 INFO L87 Difference]: Start difference. First operand 1431 states and 1905 transitions. Second operand 8 states. [2019-10-13 21:17:06,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:06,127 INFO L93 Difference]: Finished difference Result 3235 states and 4277 transitions. [2019-10-13 21:17:06,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 21:17:06,127 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 244 [2019-10-13 21:17:06,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:06,143 INFO L225 Difference]: With dead ends: 3235 [2019-10-13 21:17:06,143 INFO L226 Difference]: Without dead ends: 2490 [2019-10-13 21:17:06,148 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:17:06,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2019-10-13 21:17:06,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2467. [2019-10-13 21:17:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2467 states. [2019-10-13 21:17:06,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 3272 transitions. [2019-10-13 21:17:06,302 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 3272 transitions. Word has length 244 [2019-10-13 21:17:06,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:06,303 INFO L462 AbstractCegarLoop]: Abstraction has 2467 states and 3272 transitions. [2019-10-13 21:17:06,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:17:06,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 3272 transitions. [2019-10-13 21:17:06,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-13 21:17:06,311 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:06,312 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:06,312 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:06,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:06,313 INFO L82 PathProgramCache]: Analyzing trace with hash -44557591, now seen corresponding path program 1 times [2019-10-13 21:17:06,313 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:06,313 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29317574] [2019-10-13 21:17:06,314 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:06,314 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:06,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:06,793 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2019-10-13 21:17:06,794 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29317574] [2019-10-13 21:17:06,794 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:06,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-13 21:17:06,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774024914] [2019-10-13 21:17:06,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-13 21:17:06,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:06,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-13 21:17:06,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2019-10-13 21:17:06,796 INFO L87 Difference]: Start difference. First operand 2467 states and 3272 transitions. Second operand 21 states. [2019-10-13 21:17:07,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:07,989 INFO L93 Difference]: Finished difference Result 3354 states and 4418 transitions. [2019-10-13 21:17:07,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 21:17:07,990 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 245 [2019-10-13 21:17:07,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:08,009 INFO L225 Difference]: With dead ends: 3354 [2019-10-13 21:17:08,009 INFO L226 Difference]: Without dead ends: 2466 [2019-10-13 21:17:08,015 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=1353, Unknown=0, NotChecked=0, Total=1482 [2019-10-13 21:17:08,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2466 states. [2019-10-13 21:17:08,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2466 to 2465. [2019-10-13 21:17:08,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2465 states. [2019-10-13 21:17:08,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3267 transitions. [2019-10-13 21:17:08,147 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3267 transitions. Word has length 245 [2019-10-13 21:17:08,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:08,148 INFO L462 AbstractCegarLoop]: Abstraction has 2465 states and 3267 transitions. [2019-10-13 21:17:08,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-13 21:17:08,148 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3267 transitions. [2019-10-13 21:17:08,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-13 21:17:08,154 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:08,155 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:08,155 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:08,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:08,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1352372955, now seen corresponding path program 2 times [2019-10-13 21:17:08,156 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:08,156 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728016059] [2019-10-13 21:17:08,156 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:08,156 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:08,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2019-10-13 21:17:08,461 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728016059] [2019-10-13 21:17:08,461 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777297492] [2019-10-13 21:17:08,462 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2019-10-13 21:17:09,004 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-13 21:17:09,005 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 21:17:09,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 2403 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-13 21:17:09,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:17:09,317 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2019-10-13 21:17:09,318 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:17:10,008 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2019-10-13 21:17:10,009 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:17:10,009 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [13] total 25 [2019-10-13 21:17:10,009 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47797204] [2019-10-13 21:17:10,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 21:17:10,011 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:10,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 21:17:10,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:17:10,012 INFO L87 Difference]: Start difference. First operand 2465 states and 3267 transitions. Second operand 14 states. [2019-10-13 21:17:12,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:12,993 INFO L93 Difference]: Finished difference Result 7283 states and 9704 transitions. [2019-10-13 21:17:12,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-13 21:17:12,993 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 245 [2019-10-13 21:17:12,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:13,046 INFO L225 Difference]: With dead ends: 7283 [2019-10-13 21:17:13,046 INFO L226 Difference]: Without dead ends: 7280 [2019-10-13 21:17:13,053 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 484 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=182, Invalid=1378, Unknown=0, NotChecked=0, Total=1560 [2019-10-13 21:17:13,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7280 states. [2019-10-13 21:17:13,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7280 to 5182. [2019-10-13 21:17:13,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5182 states. [2019-10-13 21:17:13,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5182 states to 5182 states and 6964 transitions. [2019-10-13 21:17:13,516 INFO L78 Accepts]: Start accepts. Automaton has 5182 states and 6964 transitions. Word has length 245 [2019-10-13 21:17:13,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:13,517 INFO L462 AbstractCegarLoop]: Abstraction has 5182 states and 6964 transitions. [2019-10-13 21:17:13,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 21:17:13,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5182 states and 6964 transitions. [2019-10-13 21:17:13,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-13 21:17:13,530 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:13,531 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:13,738 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:17:13,739 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:13,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:13,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1613097188, now seen corresponding path program 1 times [2019-10-13 21:17:13,740 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:13,740 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696178939] [2019-10-13 21:17:13,740 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:13,741 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:13,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:14,012 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2019-10-13 21:17:14,012 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696178939] [2019-10-13 21:17:14,013 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060577108] [2019-10-13 21:17:14,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:17:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:14,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 3337 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:17:14,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:17:14,947 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2019-10-13 21:17:14,948 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:17:15,469 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:17:15,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:17:15,603 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:17:15,770 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2019-10-13 21:17:15,770 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:17:15,770 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 22 [2019-10-13 21:17:15,771 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278329270] [2019-10-13 21:17:15,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:17:15,771 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:15,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:17:15,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2019-10-13 21:17:15,772 INFO L87 Difference]: Start difference. First operand 5182 states and 6964 transitions. Second operand 9 states. [2019-10-13 21:17:18,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:18,585 INFO L93 Difference]: Finished difference Result 10289 states and 13842 transitions. [2019-10-13 21:17:18,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:17:18,586 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 248 [2019-10-13 21:17:18,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:18,618 INFO L225 Difference]: With dead ends: 10289 [2019-10-13 21:17:18,618 INFO L226 Difference]: Without dead ends: 5194 [2019-10-13 21:17:18,638 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 480 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:17:18,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5194 states. [2019-10-13 21:17:18,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5194 to 5184. [2019-10-13 21:17:18,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5184 states. [2019-10-13 21:17:18,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 6967 transitions. [2019-10-13 21:17:18,893 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 6967 transitions. Word has length 248 [2019-10-13 21:17:18,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:18,893 INFO L462 AbstractCegarLoop]: Abstraction has 5184 states and 6967 transitions. [2019-10-13 21:17:18,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:17:18,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 6967 transitions. [2019-10-13 21:17:18,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-13 21:17:18,907 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:18,907 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:19,117 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:17:19,117 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:19,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:19,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1276004782, now seen corresponding path program 1 times [2019-10-13 21:17:19,118 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:19,119 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107129017] [2019-10-13 21:17:19,119 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:19,119 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:19,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2019-10-13 21:17:19,521 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107129017] [2019-10-13 21:17:19,521 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778946432] [2019-10-13 21:17:19,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:17:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:20,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 3335 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-13 21:17:20,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:17:20,600 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2019-10-13 21:17:20,600 INFO L321 TraceCheckSpWp]: Computing backward predicates...