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_spec0_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:12:19,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:12:19,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:12:19,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:12:19,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:12:19,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:12:19,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:12:19,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:12:19,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:12:19,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:12:19,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:12:19,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:12:19,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:12:19,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:12:19,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:12:19,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:12:19,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:12:19,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:12:19,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:12:19,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:12:19,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:12:19,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:12:19,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:12:19,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:12:19,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:12:19,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:12:19,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:12:19,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:12:19,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:12:19,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:12:19,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:12:19,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:12:19,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:12:19,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:12:19,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:12:19,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:12:19,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:12:19,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:12:19,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:12:19,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:12:19,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:12:19,475 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:12:19,508 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:12:19,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:12:19,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:12:19,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:12:19,513 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:12:19,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:12:19,516 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:12:19,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:12:19,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:12:19,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:12:19,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:12:19,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:12:19,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:12:19,518 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:12:19,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:12:19,518 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:12:19,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:12:19,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:12:19,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:12:19,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:12:19,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:12:19,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:19,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:12:19,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:12:19,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:12:19,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:12:19,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:12:19,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:12:19,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:12:19,783 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:12:19,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:12:19,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:12:19,806 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:12:19,807 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:12:19,807 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_productSimulator.cil.c [2019-10-15 01:12:19,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89765556b/627bc2f664cb4b489563d454434f2a17/FLAG4022cb7fa [2019-10-15 01:12:20,545 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:12:20,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_productSimulator.cil.c [2019-10-15 01:12:20,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89765556b/627bc2f664cb4b489563d454434f2a17/FLAG4022cb7fa [2019-10-15 01:12:20,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89765556b/627bc2f664cb4b489563d454434f2a17 [2019-10-15 01:12:20,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:12:20,745 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:12:20,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:20,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:12:20,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:12:20,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:20" (1/1) ... [2019-10-15 01:12:20,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e12d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:20, skipping insertion in model container [2019-10-15 01:12:20,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:20" (1/1) ... [2019-10-15 01:12:20,758 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:12:20,830 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:12:21,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:21,717 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:12:21,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:22,022 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:12:22,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:22 WrapperNode [2019-10-15 01:12:22,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:22,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:12:22,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:12:22,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:12:22,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:22" (1/1) ... [2019-10-15 01:12:22,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:22" (1/1) ... [2019-10-15 01:12:22,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:22" (1/1) ... [2019-10-15 01:12:22,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:22" (1/1) ... [2019-10-15 01:12:22,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:22" (1/1) ... [2019-10-15 01:12:22,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:22" (1/1) ... [2019-10-15 01:12:22,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:22" (1/1) ... [2019-10-15 01:12:22,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:12:22,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:12:22,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:12:22,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:12:22,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:12:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:12:22,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:22,355 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:12:22,355 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:12:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:12:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:12:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:12:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-15 01:12:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-15 01:12:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-15 01:12:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-15 01:12:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-15 01:12:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-15 01:12:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:12:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:12:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-15 01:12:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-15 01:12:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-15 01:12:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-15 01:12:22,363 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-15 01:12:22,363 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-15 01:12:22,363 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-15 01:12:22,363 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-15 01:12:22,363 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:12:22,363 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:12:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:12:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:12:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:12:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:12:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:12:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:12:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:12:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:12:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:12:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:12:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:12:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:12:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:12:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:12:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:12:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:12:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:12:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:12:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:12:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:12:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:12:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:12:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:12:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:12:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:12:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:12:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:12:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:12:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:12:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:12:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:12:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:12:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:12:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:12:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:12:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:12:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:12:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:12:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:12:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:12:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:12:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:12:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:12:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:12:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:12:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:12:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:12:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:12:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:12:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:12:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:12:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:12:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:12:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:12:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:12:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:12:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:12:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:12:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:12:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:12:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:12:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:12:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:12:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:12:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-15 01:12:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-15 01:12:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:12:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-15 01:12:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-15 01:12:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:12:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-15 01:12:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-15 01:12:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:12:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:12:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:12:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:12:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:12:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:12:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:12:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:12:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:12:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:12:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:12:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:12:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:12:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:12:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:12:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:12:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:12:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:12:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:12:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-15 01:12:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-15 01:12:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-15 01:12:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-15 01:12:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-15 01:12:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-15 01:12:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:12:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-15 01:12:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-15 01:12:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:12:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:12:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:12:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:12:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:12:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:12:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:12:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:12:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:12:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:12:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:12:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:12:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:12:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:12:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:12:22,399 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:12:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:12:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:12:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:12:22,400 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:12:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:12:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:12:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:12:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:12:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:12:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:12:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:12:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:12:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:12:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:12:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:12:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:12:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:12:22,402 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:12:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:12:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:12:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:12:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:12:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:12:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:12:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:12:22,403 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:12:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:12:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:12:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:12:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:12:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:12:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:12:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:12:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:12:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:12:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:12:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:12:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:12:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:12:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:12:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:12:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-15 01:12:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-15 01:12:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-15 01:12:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-15 01:12:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-15 01:12:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-15 01:12:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-15 01:12:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-15 01:12:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-15 01:12:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-15 01:12:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-15 01:12:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-15 01:12:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-15 01:12:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-15 01:12:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:12:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:12:22,408 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:12:22,408 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:12:22,408 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:12:22,408 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:12:22,408 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:12:22,408 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:12:22,408 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:12:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:12:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:12:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:12:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:12:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:12:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:12:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:12:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:12:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:12:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:12:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:12:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:12:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:12:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:12:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:12:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:12:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:12:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:12:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:12:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:12:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:12:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:12:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:12:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:12:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:12:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:12:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:12:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:12:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:12:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:12:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:12:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:12:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:12:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:12:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:12:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:12:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:12:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:12:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:12:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:12:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:12:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:12:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-15 01:12:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-15 01:12:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-15 01:12:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-15 01:12:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-15 01:12:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-15 01:12:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:12:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-15 01:12:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-15 01:12:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-15 01:12:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-15 01:12:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-15 01:12:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-15 01:12:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-15 01:12:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-15 01:12:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:12:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:12:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:12:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:12:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:12:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:12:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:12:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:12:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:12:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:12:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:12:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:12:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:12:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:12:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:12:25,108 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:12:25,108 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:12:25,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:25 BoogieIcfgContainer [2019-10-15 01:12:25,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:12:25,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:12:25,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:12:25,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:12:25,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:12:20" (1/3) ... [2019-10-15 01:12:25,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae31bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:25, skipping insertion in model container [2019-10-15 01:12:25,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:22" (2/3) ... [2019-10-15 01:12:25,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae31bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:25, skipping insertion in model container [2019-10-15 01:12:25,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:25" (3/3) ... [2019-10-15 01:12:25,121 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_productSimulator.cil.c [2019-10-15 01:12:25,132 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:12:25,145 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:12:25,157 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:12:25,205 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:12:25,206 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:12:25,206 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:12:25,206 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:12:25,206 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:12:25,206 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:12:25,206 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:12:25,206 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:12:25,252 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states. [2019-10-15 01:12:25,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-15 01:12:25,289 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:25,290 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:25,292 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:25,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:25,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1166510359, now seen corresponding path program 1 times [2019-10-15 01:12:25,308 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:25,308 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589442879] [2019-10-15 01:12:25,308 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:25,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:25,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-15 01:12:26,102 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589442879] [2019-10-15 01:12:26,103 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:26,103 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:26,104 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902439545] [2019-10-15 01:12:26,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:26,111 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:26,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:26,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:26,129 INFO L87 Difference]: Start difference. First operand 811 states. Second operand 6 states. [2019-10-15 01:12:26,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:26,355 INFO L93 Difference]: Finished difference Result 1540 states and 2136 transitions. [2019-10-15 01:12:26,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:12:26,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2019-10-15 01:12:26,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:26,391 INFO L225 Difference]: With dead ends: 1540 [2019-10-15 01:12:26,392 INFO L226 Difference]: Without dead ends: 782 [2019-10-15 01:12:26,404 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 [2019-10-15 01:12:26,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2019-10-15 01:12:26,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 782. [2019-10-15 01:12:26,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2019-10-15 01:12:26,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1064 transitions. [2019-10-15 01:12:26,556 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1064 transitions. Word has length 225 [2019-10-15 01:12:26,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:26,558 INFO L462 AbstractCegarLoop]: Abstraction has 782 states and 1064 transitions. [2019-10-15 01:12:26,558 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:26,558 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1064 transitions. [2019-10-15 01:12:26,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-15 01:12:26,566 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:26,566 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:26,567 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:26,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:26,567 INFO L82 PathProgramCache]: Analyzing trace with hash -698788770, now seen corresponding path program 1 times [2019-10-15 01:12:26,567 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:26,568 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977790039] [2019-10-15 01:12:26,568 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:26,568 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:26,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:26,823 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-15 01:12:26,824 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977790039] [2019-10-15 01:12:26,824 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:26,824 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:26,825 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117723547] [2019-10-15 01:12:26,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:26,828 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:26,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:26,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:26,828 INFO L87 Difference]: Start difference. First operand 782 states and 1064 transitions. Second operand 3 states. [2019-10-15 01:12:26,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:26,876 INFO L93 Difference]: Finished difference Result 1217 states and 1629 transitions. [2019-10-15 01:12:26,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:26,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-10-15 01:12:26,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:26,884 INFO L225 Difference]: With dead ends: 1217 [2019-10-15 01:12:26,884 INFO L226 Difference]: Without dead ends: 785 [2019-10-15 01:12:26,887 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:26,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2019-10-15 01:12:26,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 784. [2019-10-15 01:12:26,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-10-15 01:12:26,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1066 transitions. [2019-10-15 01:12:26,965 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1066 transitions. Word has length 231 [2019-10-15 01:12:26,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:26,967 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 1066 transitions. [2019-10-15 01:12:26,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:26,968 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1066 transitions. [2019-10-15 01:12:26,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-15 01:12:26,978 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:26,979 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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] [2019-10-15 01:12:26,980 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:26,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:26,981 INFO L82 PathProgramCache]: Analyzing trace with hash 343321335, now seen corresponding path program 1 times [2019-10-15 01:12:26,981 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:26,981 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699669567] [2019-10-15 01:12:26,981 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:26,981 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:26,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:27,398 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-10-15 01:12:27,399 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699669567] [2019-10-15 01:12:27,399 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:27,399 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:27,399 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443586961] [2019-10-15 01:12:27,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:27,401 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:27,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:27,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:27,402 INFO L87 Difference]: Start difference. First operand 784 states and 1066 transitions. Second operand 6 states. [2019-10-15 01:12:28,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:28,392 INFO L93 Difference]: Finished difference Result 1880 states and 2567 transitions. [2019-10-15 01:12:28,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:28,392 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 238 [2019-10-15 01:12:28,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:28,415 INFO L225 Difference]: With dead ends: 1880 [2019-10-15 01:12:28,415 INFO L226 Difference]: Without dead ends: 1461 [2019-10-15 01:12:28,424 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:28,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2019-10-15 01:12:28,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1452. [2019-10-15 01:12:28,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1452 states. [2019-10-15 01:12:28,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1992 transitions. [2019-10-15 01:12:28,553 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1992 transitions. Word has length 238 [2019-10-15 01:12:28,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:28,556 INFO L462 AbstractCegarLoop]: Abstraction has 1452 states and 1992 transitions. [2019-10-15 01:12:28,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:28,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1992 transitions. [2019-10-15 01:12:28,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-15 01:12:28,564 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:28,564 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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] [2019-10-15 01:12:28,565 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:28,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:28,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1265830378, now seen corresponding path program 1 times [2019-10-15 01:12:28,565 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:28,566 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193879629] [2019-10-15 01:12:28,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:28,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:28,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:28,992 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-10-15 01:12:28,993 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193879629] [2019-10-15 01:12:28,993 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:28,994 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:28,994 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950622752] [2019-10-15 01:12:28,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:28,995 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:28,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:28,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:28,996 INFO L87 Difference]: Start difference. First operand 1452 states and 1992 transitions. Second operand 6 states. [2019-10-15 01:12:30,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:30,014 INFO L93 Difference]: Finished difference Result 3650 states and 5004 transitions. [2019-10-15 01:12:30,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:30,015 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 239 [2019-10-15 01:12:30,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:30,035 INFO L225 Difference]: With dead ends: 3650 [2019-10-15 01:12:30,036 INFO L226 Difference]: Without dead ends: 2811 [2019-10-15 01:12:30,041 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:30,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2019-10-15 01:12:30,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 2788. [2019-10-15 01:12:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2788 states. [2019-10-15 01:12:30,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 3846 transitions. [2019-10-15 01:12:30,268 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 3846 transitions. Word has length 239 [2019-10-15 01:12:30,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:30,270 INFO L462 AbstractCegarLoop]: Abstraction has 2788 states and 3846 transitions. [2019-10-15 01:12:30,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:30,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 3846 transitions. [2019-10-15 01:12:30,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-15 01:12:30,283 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:30,283 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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] [2019-10-15 01:12:30,283 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:30,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:30,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1889171365, now seen corresponding path program 1 times [2019-10-15 01:12:30,284 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:30,285 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340908911] [2019-10-15 01:12:30,285 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:30,285 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:30,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:30,551 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-10-15 01:12:30,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340908911] [2019-10-15 01:12:30,553 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:30,553 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:30,553 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109842682] [2019-10-15 01:12:30,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:30,555 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:30,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:30,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:30,556 INFO L87 Difference]: Start difference. First operand 2788 states and 3846 transitions. Second operand 6 states. [2019-10-15 01:12:31,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:31,707 INFO L93 Difference]: Finished difference Result 7106 states and 9776 transitions. [2019-10-15 01:12:31,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:31,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 240 [2019-10-15 01:12:31,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:31,739 INFO L225 Difference]: With dead ends: 7106 [2019-10-15 01:12:31,740 INFO L226 Difference]: Without dead ends: 5066 [2019-10-15 01:12:31,749 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:31,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5066 states. [2019-10-15 01:12:31,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5066 to 5025. [2019-10-15 01:12:31,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5025 states. [2019-10-15 01:12:31,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5025 states to 5025 states and 6990 transitions. [2019-10-15 01:12:32,000 INFO L78 Accepts]: Start accepts. Automaton has 5025 states and 6990 transitions. Word has length 240 [2019-10-15 01:12:32,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:32,003 INFO L462 AbstractCegarLoop]: Abstraction has 5025 states and 6990 transitions. [2019-10-15 01:12:32,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:32,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5025 states and 6990 transitions. [2019-10-15 01:12:32,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2019-10-15 01:12:32,027 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:32,028 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:32,028 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:32,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:32,029 INFO L82 PathProgramCache]: Analyzing trace with hash 852775003, now seen corresponding path program 1 times [2019-10-15 01:12:32,029 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:32,029 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497584079] [2019-10-15 01:12:32,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:32,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:32,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-15 01:12:32,257 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497584079] [2019-10-15 01:12:32,257 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:32,258 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:32,258 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518914330] [2019-10-15 01:12:32,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:32,259 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:32,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:32,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:32,259 INFO L87 Difference]: Start difference. First operand 5025 states and 6990 transitions. Second operand 3 states. [2019-10-15 01:12:32,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:32,423 INFO L93 Difference]: Finished difference Result 10374 states and 14622 transitions. [2019-10-15 01:12:32,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:32,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 251 [2019-10-15 01:12:32,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:32,513 INFO L225 Difference]: With dead ends: 10374 [2019-10-15 01:12:32,513 INFO L226 Difference]: Without dead ends: 5464 [2019-10-15 01:12:32,528 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:32,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5464 states. [2019-10-15 01:12:32,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5464 to 5457. [2019-10-15 01:12:32,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5457 states. [2019-10-15 01:12:32,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5457 states to 5457 states and 7759 transitions. [2019-10-15 01:12:32,823 INFO L78 Accepts]: Start accepts. Automaton has 5457 states and 7759 transitions. Word has length 251 [2019-10-15 01:12:32,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:32,824 INFO L462 AbstractCegarLoop]: Abstraction has 5457 states and 7759 transitions. [2019-10-15 01:12:32,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:32,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5457 states and 7759 transitions. [2019-10-15 01:12:32,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-10-15 01:12:32,852 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:32,852 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:32,853 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:32,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:32,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1905759325, now seen corresponding path program 1 times [2019-10-15 01:12:32,854 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:32,854 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109024899] [2019-10-15 01:12:32,854 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:32,854 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:32,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:33,057 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-15 01:12:33,058 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109024899] [2019-10-15 01:12:33,058 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:33,058 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:33,059 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031579709] [2019-10-15 01:12:33,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:33,060 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:33,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:33,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:33,061 INFO L87 Difference]: Start difference. First operand 5457 states and 7759 transitions. Second operand 3 states. [2019-10-15 01:12:33,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:33,241 INFO L93 Difference]: Finished difference Result 11638 states and 16873 transitions. [2019-10-15 01:12:33,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:33,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 252 [2019-10-15 01:12:33,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:33,294 INFO L225 Difference]: With dead ends: 11638 [2019-10-15 01:12:33,294 INFO L226 Difference]: Without dead ends: 6296 [2019-10-15 01:12:33,318 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:33,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6296 states. [2019-10-15 01:12:33,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6296 to 6289. [2019-10-15 01:12:33,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6289 states. [2019-10-15 01:12:33,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6289 states to 6289 states and 9233 transitions. [2019-10-15 01:12:33,747 INFO L78 Accepts]: Start accepts. Automaton has 6289 states and 9233 transitions. Word has length 252 [2019-10-15 01:12:33,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:33,747 INFO L462 AbstractCegarLoop]: Abstraction has 6289 states and 9233 transitions. [2019-10-15 01:12:33,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:33,748 INFO L276 IsEmpty]: Start isEmpty. Operand 6289 states and 9233 transitions. [2019-10-15 01:12:33,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-10-15 01:12:33,776 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:33,776 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:33,776 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:33,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:33,777 INFO L82 PathProgramCache]: Analyzing trace with hash 52663873, now seen corresponding path program 1 times [2019-10-15 01:12:33,777 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:33,777 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135762625] [2019-10-15 01:12:33,778 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:33,778 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:33,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:34,024 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-15 01:12:34,024 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135762625] [2019-10-15 01:12:34,025 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:34,025 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:34,025 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790162445] [2019-10-15 01:12:34,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:34,026 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:34,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:34,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:34,027 INFO L87 Difference]: Start difference. First operand 6289 states and 9233 transitions. Second operand 3 states. [2019-10-15 01:12:34,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:34,258 INFO L93 Difference]: Finished difference Result 14070 states and 21183 transitions. [2019-10-15 01:12:34,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:34,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2019-10-15 01:12:34,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:34,307 INFO L225 Difference]: With dead ends: 14070 [2019-10-15 01:12:34,307 INFO L226 Difference]: Without dead ends: 7896 [2019-10-15 01:12:34,331 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:34,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7896 states. [2019-10-15 01:12:34,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7896 to 7889. [2019-10-15 01:12:34,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7889 states. [2019-10-15 01:12:34,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7889 states to 7889 states and 12053 transitions. [2019-10-15 01:12:34,673 INFO L78 Accepts]: Start accepts. Automaton has 7889 states and 12053 transitions. Word has length 253 [2019-10-15 01:12:34,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:34,674 INFO L462 AbstractCegarLoop]: Abstraction has 7889 states and 12053 transitions. [2019-10-15 01:12:34,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:34,674 INFO L276 IsEmpty]: Start isEmpty. Operand 7889 states and 12053 transitions. [2019-10-15 01:12:34,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-10-15 01:12:34,709 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:34,710 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:34,710 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:34,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:34,711 INFO L82 PathProgramCache]: Analyzing trace with hash -700469827, now seen corresponding path program 1 times [2019-10-15 01:12:34,711 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:34,711 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140889995] [2019-10-15 01:12:34,711 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:34,712 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:34,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:35,443 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-15 01:12:35,443 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140889995] [2019-10-15 01:12:35,444 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:35,444 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:35,444 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273873229] [2019-10-15 01:12:35,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:35,445 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:35,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:35,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:35,446 INFO L87 Difference]: Start difference. First operand 7889 states and 12053 transitions. Second operand 3 states. [2019-10-15 01:12:35,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:35,760 INFO L93 Difference]: Finished difference Result 18742 states and 29419 transitions. [2019-10-15 01:12:35,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:35,761 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 254 [2019-10-15 01:12:35,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:35,816 INFO L225 Difference]: With dead ends: 18742 [2019-10-15 01:12:35,816 INFO L226 Difference]: Without dead ends: 10968 [2019-10-15 01:12:35,848 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:35,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10968 states. [2019-10-15 01:12:36,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10968 to 10961. [2019-10-15 01:12:36,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10961 states. [2019-10-15 01:12:36,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10961 states to 10961 states and 17437 transitions. [2019-10-15 01:12:36,314 INFO L78 Accepts]: Start accepts. Automaton has 10961 states and 17437 transitions. Word has length 254 [2019-10-15 01:12:36,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:36,315 INFO L462 AbstractCegarLoop]: Abstraction has 10961 states and 17437 transitions. [2019-10-15 01:12:36,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:36,315 INFO L276 IsEmpty]: Start isEmpty. Operand 10961 states and 17437 transitions. [2019-10-15 01:12:36,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-10-15 01:12:36,374 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:36,374 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:36,374 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:36,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:36,375 INFO L82 PathProgramCache]: Analyzing trace with hash -814717913, now seen corresponding path program 1 times [2019-10-15 01:12:36,375 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:36,375 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534105510] [2019-10-15 01:12:36,375 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:36,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:36,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:36,664 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-15 01:12:36,665 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534105510] [2019-10-15 01:12:36,665 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:36,665 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:36,665 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12909857] [2019-10-15 01:12:36,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:36,666 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:36,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:36,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:36,667 INFO L87 Difference]: Start difference. First operand 10961 states and 17437 transitions. Second operand 3 states. [2019-10-15 01:12:37,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:37,085 INFO L93 Difference]: Finished difference Result 27702 states and 45123 transitions. [2019-10-15 01:12:37,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:37,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2019-10-15 01:12:37,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:37,157 INFO L225 Difference]: With dead ends: 27702 [2019-10-15 01:12:37,157 INFO L226 Difference]: Without dead ends: 16856 [2019-10-15 01:12:37,200 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:37,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16856 states. [2019-10-15 01:12:37,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16856 to 16849. [2019-10-15 01:12:37,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16849 states. [2019-10-15 01:12:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16849 states to 16849 states and 27693 transitions. [2019-10-15 01:12:37,997 INFO L78 Accepts]: Start accepts. Automaton has 16849 states and 27693 transitions. Word has length 255 [2019-10-15 01:12:37,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:37,998 INFO L462 AbstractCegarLoop]: Abstraction has 16849 states and 27693 transitions. [2019-10-15 01:12:37,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:37,998 INFO L276 IsEmpty]: Start isEmpty. Operand 16849 states and 27693 transitions. [2019-10-15 01:12:38,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-10-15 01:12:38,079 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:38,079 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:38,080 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:38,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:38,080 INFO L82 PathProgramCache]: Analyzing trace with hash 826554327, now seen corresponding path program 1 times [2019-10-15 01:12:38,080 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:38,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221078347] [2019-10-15 01:12:38,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:38,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:38,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:38,285 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-10-15 01:12:38,285 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221078347] [2019-10-15 01:12:38,286 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:38,286 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:12:38,286 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063121487] [2019-10-15 01:12:38,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:12:38,287 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:38,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:12:38,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:12:38,288 INFO L87 Difference]: Start difference. First operand 16849 states and 27693 transitions. Second operand 4 states. [2019-10-15 01:12:41,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:41,146 INFO L93 Difference]: Finished difference Result 50230 states and 83129 transitions. [2019-10-15 01:12:41,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:12:41,146 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 256 [2019-10-15 01:12:41,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:41,317 INFO L225 Difference]: With dead ends: 50230 [2019-10-15 01:12:41,317 INFO L226 Difference]: Without dead ends: 33418 [2019-10-15 01:12:41,364 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 [2019-10-15 01:12:41,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33418 states. [2019-10-15 01:12:42,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33418 to 33415. [2019-10-15 01:12:42,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33415 states. [2019-10-15 01:12:42,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33415 states to 33415 states and 54945 transitions. [2019-10-15 01:12:42,799 INFO L78 Accepts]: Start accepts. Automaton has 33415 states and 54945 transitions. Word has length 256 [2019-10-15 01:12:42,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:42,799 INFO L462 AbstractCegarLoop]: Abstraction has 33415 states and 54945 transitions. [2019-10-15 01:12:42,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:12:42,800 INFO L276 IsEmpty]: Start isEmpty. Operand 33415 states and 54945 transitions. [2019-10-15 01:12:42,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-15 01:12:42,940 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:42,940 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:42,940 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:42,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:42,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1927960127, now seen corresponding path program 1 times [2019-10-15 01:12:42,941 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:42,941 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224109731] [2019-10-15 01:12:42,942 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,942 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:43,204 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-10-15 01:12:43,204 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224109731] [2019-10-15 01:12:43,205 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:43,205 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:12:43,205 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841903594] [2019-10-15 01:12:43,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:12:43,206 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:43,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:12:43,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:12:43,206 INFO L87 Difference]: Start difference. First operand 33415 states and 54945 transitions. Second operand 11 states. [2019-10-15 01:12:44,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:44,244 INFO L93 Difference]: Finished difference Result 33418 states and 54947 transitions. [2019-10-15 01:12:44,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:12:44,244 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 249 [2019-10-15 01:12:44,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:44,301 INFO L225 Difference]: With dead ends: 33418 [2019-10-15 01:12:44,302 INFO L226 Difference]: Without dead ends: 16824 [2019-10-15 01:12:44,330 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:12:44,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16824 states. [2019-10-15 01:12:44,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16824 to 16824. [2019-10-15 01:12:44,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16824 states. [2019-10-15 01:12:44,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16824 states to 16824 states and 27623 transitions. [2019-10-15 01:12:44,926 INFO L78 Accepts]: Start accepts. Automaton has 16824 states and 27623 transitions. Word has length 249 [2019-10-15 01:12:44,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:44,927 INFO L462 AbstractCegarLoop]: Abstraction has 16824 states and 27623 transitions. [2019-10-15 01:12:44,927 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:12:44,927 INFO L276 IsEmpty]: Start isEmpty. Operand 16824 states and 27623 transitions. [2019-10-15 01:12:44,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-15 01:12:44,973 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:44,974 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:44,974 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:44,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:44,974 INFO L82 PathProgramCache]: Analyzing trace with hash 225047104, now seen corresponding path program 1 times [2019-10-15 01:12:44,975 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:44,975 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384555383] [2019-10-15 01:12:44,975 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:44,975 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:44,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:45,119 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2019-10-15 01:12:45,120 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384555383] [2019-10-15 01:12:45,120 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:45,120 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:45,121 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666709682] [2019-10-15 01:12:45,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:45,122 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:45,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:45,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:45,123 INFO L87 Difference]: Start difference. First operand 16824 states and 27623 transitions. Second operand 3 states. [2019-10-15 01:12:45,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:45,956 INFO L93 Difference]: Finished difference Result 33600 states and 55282 transitions. [2019-10-15 01:12:45,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:45,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2019-10-15 01:12:45,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:46,010 INFO L225 Difference]: With dead ends: 33600 [2019-10-15 01:12:46,010 INFO L226 Difference]: Without dead ends: 16817 [2019-10-15 01:12:46,040 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:46,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16817 states. [2019-10-15 01:12:46,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16817 to 16817. [2019-10-15 01:12:46,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16817 states. [2019-10-15 01:12:46,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16817 states to 16817 states and 27601 transitions. [2019-10-15 01:12:46,722 INFO L78 Accepts]: Start accepts. Automaton has 16817 states and 27601 transitions. Word has length 274 [2019-10-15 01:12:46,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:46,722 INFO L462 AbstractCegarLoop]: Abstraction has 16817 states and 27601 transitions. [2019-10-15 01:12:46,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:46,723 INFO L276 IsEmpty]: Start isEmpty. Operand 16817 states and 27601 transitions. [2019-10-15 01:12:46,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-15 01:12:46,775 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:46,775 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:46,776 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:46,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:46,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1480022866, now seen corresponding path program 1 times [2019-10-15 01:12:46,777 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:46,777 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203199782] [2019-10-15 01:12:46,777 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:46,777 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:46,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2019-10-15 01:12:46,989 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203199782] [2019-10-15 01:12:46,989 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:46,990 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:12:46,990 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425394401] [2019-10-15 01:12:46,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:12:46,992 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:46,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:12:46,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:12:46,992 INFO L87 Difference]: Start difference. First operand 16817 states and 27601 transitions. Second operand 4 states.