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-f4eb214f-m [2019-10-13 21:13:17,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:13:17,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:13:17,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:13:17,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:13:17,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:13:17,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:13:17,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:13:17,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:13:17,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:13:17,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:13:17,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:13:17,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:13:17,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:13:17,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:13:17,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:13:17,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:13:17,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:13:17,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:13:17,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:13:17,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:13:17,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:13:17,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:13:17,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:13:17,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:13:17,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:13:17,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:13:17,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:13:17,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:13:17,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:13:17,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:13:17,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:13:17,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:13:17,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:13:17,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:13:17,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:13:17,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:13:17,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:13:17,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:13:17,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:13:17,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:13:17,522 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:13:17,543 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:13:17,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:13:17,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:13:17,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:13:17,547 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:13:17,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:13:17,547 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:13:17,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:13:17,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:13:17,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:13:17,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:13:17,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:13:17,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:13:17,550 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:13:17,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:13:17,550 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:13:17,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:13:17,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:13:17,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:13:17,551 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:13:17,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:13:17,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:13:17,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:13:17,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:13:17,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:13:17,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:13:17,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:13:17,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:13:17,553 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:13:17,851 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:13:17,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:13:17,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:13:17,869 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:13:17,869 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:13:17,870 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_productSimulator.cil.c [2019-10-13 21:13:17,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0cfd527/250a411b948e4626bff7e80f64a76ece/FLAG4e2dad9da [2019-10-13 21:13:18,600 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:13:18,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_productSimulator.cil.c [2019-10-13 21:13:18,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0cfd527/250a411b948e4626bff7e80f64a76ece/FLAG4e2dad9da [2019-10-13 21:13:18,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0cfd527/250a411b948e4626bff7e80f64a76ece [2019-10-13 21:13:18,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:13:18,807 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:13:18,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:13:18,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:13:18,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:13:18,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:13:18" (1/1) ... [2019-10-13 21:13:18,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e88111d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:18, skipping insertion in model container [2019-10-13 21:13:18,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:13:18" (1/1) ... [2019-10-13 21:13:18,824 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:13:18,912 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:13:19,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:13:19,643 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:13:19,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:13:20,030 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:13:20,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:20 WrapperNode [2019-10-13 21:13:20,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:13:20,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:13:20,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:13:20,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:13:20,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:20" (1/1) ... [2019-10-13 21:13:20,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:20" (1/1) ... [2019-10-13 21:13:20,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:20" (1/1) ... [2019-10-13 21:13:20,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:20" (1/1) ... [2019-10-13 21:13:20,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:20" (1/1) ... [2019-10-13 21:13:20,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:20" (1/1) ... [2019-10-13 21:13:20,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:20" (1/1) ... [2019-10-13 21:13:20,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:13:20,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:13:20,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:13:20,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:13:20,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:13:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:13:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:13:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:13:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:13:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:13:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:13:20,333 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:13:20,333 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:13:20,333 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-13 21:13:20,334 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-13 21:13:20,334 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-13 21:13:20,334 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-13 21:13:20,334 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-13 21:13:20,335 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-13 21:13:20,336 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:13:20,336 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:13:20,338 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-13 21:13:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-13 21:13:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-13 21:13:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-13 21:13:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-13 21:13:20,340 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-13 21:13:20,341 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-13 21:13:20,341 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-13 21:13:20,341 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:13:20,342 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:13:20,343 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:13:20,343 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:13:20,344 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:13:20,344 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:13:20,344 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:13:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:13:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:13:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:13:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:13:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:13:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:13:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:13:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:13:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:13:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:13:20,370 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:13:20,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:13:20,371 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:13:20,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:13:20,371 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:13:20,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:13:20,371 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:13:20,371 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:13:20,372 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:13:20,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:13:20,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:13:20,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:13:20,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:13:20,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:13:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:13:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:13:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:13:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:13:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:13:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:13:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:13:20,374 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:13:20,374 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:13:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:13:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:13:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:13:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:13:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:13:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:13:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:13:20,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:13:20,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:13:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:13:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:13:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:13:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:13:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:13:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:13:20,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:13:20,378 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:13:20,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:13:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:13:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:13:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:13:20,380 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:13:20,380 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:13:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:13:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:13:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:13:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-13 21:13:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-13 21:13:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:13:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-13 21:13:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-13 21:13:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:13:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-13 21:13:20,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-13 21:13:20,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:13:20,383 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:13:20,383 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:13:20,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:13:20,383 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:13:20,383 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:13:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:13:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:13:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:13:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:13:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:13:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:13:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:13:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:13:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:13:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:13:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:13:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:13:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 21:13:20,386 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-13 21:13:20,386 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-13 21:13:20,386 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-13 21:13:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-13 21:13:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-13 21:13:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-13 21:13:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:13:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-13 21:13:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-13 21:13:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:13:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:13:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:13:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:13:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:13:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:13:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:13:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:13:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:13:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:13:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:13:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:13:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:13:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:13:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:13:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:13:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:13:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:13:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:13:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:13:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:13:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:13:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:13:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:13:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:13:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:13:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:13:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:13:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:13:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:13:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:13:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:13:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:13:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:13:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:13:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:13:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:13:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:13:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:13:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:13:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:13:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:13:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:13:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:13:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:13:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:13:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:13:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:13:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:13:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:13:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:13:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:13:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:13:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:13:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:13:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:13:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:13:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:13:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:13:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:13:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-13 21:13:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-13 21:13:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-13 21:13:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-13 21:13:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-13 21:13:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-13 21:13:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-13 21:13:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-13 21:13:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-13 21:13:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-13 21:13:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-13 21:13:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-13 21:13:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-13 21:13:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-13 21:13:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 21:13:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:13:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:13:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:13:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:13:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:13:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:13:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:13:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:13:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:13:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:13:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:13:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:13:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:13:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:13:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:13:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:13:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:13:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:13:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:13:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:13:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:13:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:13:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:13:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:13:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:13:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:13:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:13:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:13:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:13:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:13:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:13:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:13:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:13:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:13:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:13:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:13:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:13:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:13:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:13:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:13:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:13:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:13:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:13:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:13:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:13:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:13:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:13:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:13:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:13:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:13:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-13 21:13:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-13 21:13:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-13 21:13:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-13 21:13:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-13 21:13:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-13 21:13:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:13:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-13 21:13:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-13 21:13:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-13 21:13:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-13 21:13:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-13 21:13:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-13 21:13:20,432 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-13 21:13:20,432 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-13 21:13:20,432 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:13:20,432 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:13:20,432 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:13:20,433 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:13:20,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:13:20,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:13:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:13:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:13:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:13:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:13:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:13:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:13:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:13:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:13:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:13:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:13:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:13:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:13:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:13:22,794 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:13:22,794 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:13:22,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:13:22 BoogieIcfgContainer [2019-10-13 21:13:22,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:13:22,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:13:22,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:13:22,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:13:22,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:13:18" (1/3) ... [2019-10-13 21:13:22,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1beca509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:13:22, skipping insertion in model container [2019-10-13 21:13:22,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:20" (2/3) ... [2019-10-13 21:13:22,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1beca509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:13:22, skipping insertion in model container [2019-10-13 21:13:22,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:13:22" (3/3) ... [2019-10-13 21:13:22,805 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_productSimulator.cil.c [2019-10-13 21:13:22,814 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:13:22,826 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:13:22,839 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:13:22,888 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:13:22,888 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:13:22,889 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:13:22,889 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:13:22,889 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:13:22,889 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:13:22,889 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:13:22,889 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:13:22,927 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states. [2019-10-13 21:13:22,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-13 21:13:22,961 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:22,962 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] [2019-10-13 21:13:22,964 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:22,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:22,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1166510359, now seen corresponding path program 1 times [2019-10-13 21:13:22,980 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:22,981 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926433076] [2019-10-13 21:13:22,981 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:22,981 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:22,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:23,857 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:13:23,858 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926433076] [2019-10-13 21:13:23,859 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:23,859 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:13:23,860 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371789625] [2019-10-13 21:13:23,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:13:23,868 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:23,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:13:23,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:13:23,887 INFO L87 Difference]: Start difference. First operand 811 states. Second operand 6 states. [2019-10-13 21:13:24,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:24,100 INFO L93 Difference]: Finished difference Result 1540 states and 2136 transitions. [2019-10-13 21:13:24,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:13:24,102 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2019-10-13 21:13:24,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:24,141 INFO L225 Difference]: With dead ends: 1540 [2019-10-13 21:13:24,141 INFO L226 Difference]: Without dead ends: 782 [2019-10-13 21:13:24,154 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:13:24,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2019-10-13 21:13:24,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 782. [2019-10-13 21:13:24,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2019-10-13 21:13:24,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1064 transitions. [2019-10-13 21:13:24,298 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1064 transitions. Word has length 225 [2019-10-13 21:13:24,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:24,301 INFO L462 AbstractCegarLoop]: Abstraction has 782 states and 1064 transitions. [2019-10-13 21:13:24,301 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:13:24,301 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1064 transitions. [2019-10-13 21:13:24,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-13 21:13:24,311 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:24,312 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] [2019-10-13 21:13:24,312 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:24,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:24,312 INFO L82 PathProgramCache]: Analyzing trace with hash -698788770, now seen corresponding path program 1 times [2019-10-13 21:13:24,312 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:24,313 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28532989] [2019-10-13 21:13:24,313 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:24,313 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:24,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:24,646 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:13:24,646 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28532989] [2019-10-13 21:13:24,647 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:24,647 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:24,647 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068318210] [2019-10-13 21:13:24,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:24,657 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:24,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:24,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:24,658 INFO L87 Difference]: Start difference. First operand 782 states and 1064 transitions. Second operand 3 states. [2019-10-13 21:13:24,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:24,708 INFO L93 Difference]: Finished difference Result 1217 states and 1629 transitions. [2019-10-13 21:13:24,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:24,709 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-10-13 21:13:24,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:24,717 INFO L225 Difference]: With dead ends: 1217 [2019-10-13 21:13:24,718 INFO L226 Difference]: Without dead ends: 785 [2019-10-13 21:13:24,721 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:24,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2019-10-13 21:13:24,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 784. [2019-10-13 21:13:24,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-10-13 21:13:24,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1066 transitions. [2019-10-13 21:13:24,772 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1066 transitions. Word has length 231 [2019-10-13 21:13:24,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:24,773 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 1066 transitions. [2019-10-13 21:13:24,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:24,773 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1066 transitions. [2019-10-13 21:13:24,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-13 21:13:24,782 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:24,782 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] [2019-10-13 21:13:24,783 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:24,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:24,783 INFO L82 PathProgramCache]: Analyzing trace with hash 343321335, now seen corresponding path program 1 times [2019-10-13 21:13:24,784 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:24,784 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165667977] [2019-10-13 21:13:24,784 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:24,785 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:24,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:25,308 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-10-13 21:13:25,309 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165667977] [2019-10-13 21:13:25,309 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:25,309 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:13:25,309 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133901581] [2019-10-13 21:13:25,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:13:25,313 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:25,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:13:25,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:13:25,314 INFO L87 Difference]: Start difference. First operand 784 states and 1066 transitions. Second operand 6 states. [2019-10-13 21:13:26,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:26,346 INFO L93 Difference]: Finished difference Result 1880 states and 2567 transitions. [2019-10-13 21:13:26,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:13:26,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 238 [2019-10-13 21:13:26,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:26,356 INFO L225 Difference]: With dead ends: 1880 [2019-10-13 21:13:26,357 INFO L226 Difference]: Without dead ends: 1461 [2019-10-13 21:13:26,359 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 [2019-10-13 21:13:26,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2019-10-13 21:13:26,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1452. [2019-10-13 21:13:26,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1452 states. [2019-10-13 21:13:26,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1992 transitions. [2019-10-13 21:13:26,435 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1992 transitions. Word has length 238 [2019-10-13 21:13:26,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:26,438 INFO L462 AbstractCegarLoop]: Abstraction has 1452 states and 1992 transitions. [2019-10-13 21:13:26,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:13:26,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1992 transitions. [2019-10-13 21:13:26,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-13 21:13:26,446 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:26,446 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] [2019-10-13 21:13:26,447 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:26,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:26,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1265830378, now seen corresponding path program 1 times [2019-10-13 21:13:26,447 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:26,448 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593080716] [2019-10-13 21:13:26,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:26,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:26,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:26,756 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-10-13 21:13:26,756 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593080716] [2019-10-13 21:13:26,756 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:26,756 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:13:26,757 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717730696] [2019-10-13 21:13:26,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:13:26,758 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:26,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:13:26,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:13:26,758 INFO L87 Difference]: Start difference. First operand 1452 states and 1992 transitions. Second operand 6 states. [2019-10-13 21:13:27,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:27,747 INFO L93 Difference]: Finished difference Result 3650 states and 5004 transitions. [2019-10-13 21:13:27,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:13:27,750 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 239 [2019-10-13 21:13:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:27,786 INFO L225 Difference]: With dead ends: 3650 [2019-10-13 21:13:27,786 INFO L226 Difference]: Without dead ends: 2811 [2019-10-13 21:13:27,793 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 [2019-10-13 21:13:27,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2019-10-13 21:13:27,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 2788. [2019-10-13 21:13:27,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2788 states. [2019-10-13 21:13:27,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 3846 transitions. [2019-10-13 21:13:27,959 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 3846 transitions. Word has length 239 [2019-10-13 21:13:27,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:27,961 INFO L462 AbstractCegarLoop]: Abstraction has 2788 states and 3846 transitions. [2019-10-13 21:13:27,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:13:27,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 3846 transitions. [2019-10-13 21:13:27,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-13 21:13:27,975 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:27,976 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] [2019-10-13 21:13:27,976 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:27,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:27,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1889171365, now seen corresponding path program 1 times [2019-10-13 21:13:27,977 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:27,977 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491418675] [2019-10-13 21:13:27,977 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:27,978 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:27,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:28,269 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-10-13 21:13:28,270 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491418675] [2019-10-13 21:13:28,270 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:28,270 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:13:28,270 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268151115] [2019-10-13 21:13:28,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:13:28,271 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:28,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:13:28,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:13:28,272 INFO L87 Difference]: Start difference. First operand 2788 states and 3846 transitions. Second operand 6 states. [2019-10-13 21:13:29,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:29,116 INFO L93 Difference]: Finished difference Result 7106 states and 9776 transitions. [2019-10-13 21:13:29,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:13:29,117 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 240 [2019-10-13 21:13:29,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:29,152 INFO L225 Difference]: With dead ends: 7106 [2019-10-13 21:13:29,153 INFO L226 Difference]: Without dead ends: 5066 [2019-10-13 21:13:29,162 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 [2019-10-13 21:13:29,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5066 states. [2019-10-13 21:13:29,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5066 to 5025. [2019-10-13 21:13:29,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5025 states. [2019-10-13 21:13:29,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5025 states to 5025 states and 6990 transitions. [2019-10-13 21:13:29,525 INFO L78 Accepts]: Start accepts. Automaton has 5025 states and 6990 transitions. Word has length 240 [2019-10-13 21:13:29,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:29,526 INFO L462 AbstractCegarLoop]: Abstraction has 5025 states and 6990 transitions. [2019-10-13 21:13:29,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:13:29,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5025 states and 6990 transitions. [2019-10-13 21:13:29,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2019-10-13 21:13:29,546 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:29,546 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] [2019-10-13 21:13:29,546 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:29,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:29,547 INFO L82 PathProgramCache]: Analyzing trace with hash 852775003, now seen corresponding path program 1 times [2019-10-13 21:13:29,547 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:29,548 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137293143] [2019-10-13 21:13:29,548 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:29,548 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:29,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:29,848 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:13:29,849 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137293143] [2019-10-13 21:13:29,850 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:29,850 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:29,851 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482708604] [2019-10-13 21:13:29,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:29,852 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:29,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:29,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:29,852 INFO L87 Difference]: Start difference. First operand 5025 states and 6990 transitions. Second operand 3 states. [2019-10-13 21:13:30,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:30,045 INFO L93 Difference]: Finished difference Result 10374 states and 14622 transitions. [2019-10-13 21:13:30,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:30,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 251 [2019-10-13 21:13:30,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:30,093 INFO L225 Difference]: With dead ends: 10374 [2019-10-13 21:13:30,094 INFO L226 Difference]: Without dead ends: 5464 [2019-10-13 21:13:30,123 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:30,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5464 states. [2019-10-13 21:13:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5464 to 5457. [2019-10-13 21:13:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5457 states. [2019-10-13 21:13:30,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5457 states to 5457 states and 7759 transitions. [2019-10-13 21:13:30,422 INFO L78 Accepts]: Start accepts. Automaton has 5457 states and 7759 transitions. Word has length 251 [2019-10-13 21:13:30,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:30,423 INFO L462 AbstractCegarLoop]: Abstraction has 5457 states and 7759 transitions. [2019-10-13 21:13:30,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:30,423 INFO L276 IsEmpty]: Start isEmpty. Operand 5457 states and 7759 transitions. [2019-10-13 21:13:30,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-10-13 21:13:30,443 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:30,443 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] [2019-10-13 21:13:30,444 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:30,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:30,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1905759325, now seen corresponding path program 1 times [2019-10-13 21:13:30,445 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:30,445 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378271225] [2019-10-13 21:13:30,445 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:30,445 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:30,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:30,710 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:13:30,711 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378271225] [2019-10-13 21:13:30,711 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:30,711 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:30,711 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284734568] [2019-10-13 21:13:30,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:30,713 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:30,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:30,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:30,714 INFO L87 Difference]: Start difference. First operand 5457 states and 7759 transitions. Second operand 3 states. [2019-10-13 21:13:30,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:30,892 INFO L93 Difference]: Finished difference Result 11638 states and 16873 transitions. [2019-10-13 21:13:30,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:30,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 252 [2019-10-13 21:13:30,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:30,950 INFO L225 Difference]: With dead ends: 11638 [2019-10-13 21:13:30,950 INFO L226 Difference]: Without dead ends: 6296 [2019-10-13 21:13:30,976 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:30,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6296 states. [2019-10-13 21:13:31,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6296 to 6289. [2019-10-13 21:13:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6289 states. [2019-10-13 21:13:31,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6289 states to 6289 states and 9233 transitions. [2019-10-13 21:13:31,301 INFO L78 Accepts]: Start accepts. Automaton has 6289 states and 9233 transitions. Word has length 252 [2019-10-13 21:13:31,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:31,302 INFO L462 AbstractCegarLoop]: Abstraction has 6289 states and 9233 transitions. [2019-10-13 21:13:31,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 6289 states and 9233 transitions. [2019-10-13 21:13:31,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-10-13 21:13:31,325 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:31,325 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] [2019-10-13 21:13:31,325 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:31,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:31,326 INFO L82 PathProgramCache]: Analyzing trace with hash 52663873, now seen corresponding path program 1 times [2019-10-13 21:13:31,326 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:31,326 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176686121] [2019-10-13 21:13:31,327 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:31,327 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:31,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:31,521 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:13:31,521 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176686121] [2019-10-13 21:13:31,522 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:31,522 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:31,522 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574716524] [2019-10-13 21:13:31,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:31,523 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:31,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:31,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:31,524 INFO L87 Difference]: Start difference. First operand 6289 states and 9233 transitions. Second operand 3 states. [2019-10-13 21:13:31,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:31,888 INFO L93 Difference]: Finished difference Result 14070 states and 21183 transitions. [2019-10-13 21:13:31,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:31,889 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2019-10-13 21:13:31,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:31,957 INFO L225 Difference]: With dead ends: 14070 [2019-10-13 21:13:31,957 INFO L226 Difference]: Without dead ends: 7896 [2019-10-13 21:13:31,982 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:31,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7896 states. [2019-10-13 21:13:32,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7896 to 7889. [2019-10-13 21:13:32,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7889 states. [2019-10-13 21:13:32,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7889 states to 7889 states and 12053 transitions. [2019-10-13 21:13:32,304 INFO L78 Accepts]: Start accepts. Automaton has 7889 states and 12053 transitions. Word has length 253 [2019-10-13 21:13:32,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:32,305 INFO L462 AbstractCegarLoop]: Abstraction has 7889 states and 12053 transitions. [2019-10-13 21:13:32,305 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:32,306 INFO L276 IsEmpty]: Start isEmpty. Operand 7889 states and 12053 transitions. [2019-10-13 21:13:32,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-10-13 21:13:32,336 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:32,336 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] [2019-10-13 21:13:32,337 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:32,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:32,337 INFO L82 PathProgramCache]: Analyzing trace with hash -700469827, now seen corresponding path program 1 times [2019-10-13 21:13:32,338 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:32,338 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495698959] [2019-10-13 21:13:32,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:32,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:32,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:32,556 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:13:32,556 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495698959] [2019-10-13 21:13:32,557 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:32,557 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:32,558 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211839443] [2019-10-13 21:13:32,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:32,560 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:32,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:32,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:32,561 INFO L87 Difference]: Start difference. First operand 7889 states and 12053 transitions. Second operand 3 states. [2019-10-13 21:13:32,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:32,941 INFO L93 Difference]: Finished difference Result 18742 states and 29419 transitions. [2019-10-13 21:13:32,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:32,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 254 [2019-10-13 21:13:32,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:32,994 INFO L225 Difference]: With dead ends: 18742 [2019-10-13 21:13:32,994 INFO L226 Difference]: Without dead ends: 10968 [2019-10-13 21:13:33,023 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:33,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10968 states. [2019-10-13 21:13:33,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10968 to 10961. [2019-10-13 21:13:33,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10961 states. [2019-10-13 21:13:33,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10961 states to 10961 states and 17437 transitions. [2019-10-13 21:13:33,658 INFO L78 Accepts]: Start accepts. Automaton has 10961 states and 17437 transitions. Word has length 254 [2019-10-13 21:13:33,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:33,659 INFO L462 AbstractCegarLoop]: Abstraction has 10961 states and 17437 transitions. [2019-10-13 21:13:33,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:33,659 INFO L276 IsEmpty]: Start isEmpty. Operand 10961 states and 17437 transitions. [2019-10-13 21:13:33,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-10-13 21:13:33,719 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:33,719 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] [2019-10-13 21:13:33,720 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:33,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:33,720 INFO L82 PathProgramCache]: Analyzing trace with hash -814717913, now seen corresponding path program 1 times [2019-10-13 21:13:33,720 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:33,721 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566532424] [2019-10-13 21:13:33,721 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:33,721 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:33,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:33,915 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:13:33,916 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566532424] [2019-10-13 21:13:33,917 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:33,917 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:33,917 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543029451] [2019-10-13 21:13:33,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:33,919 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:33,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:33,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:33,920 INFO L87 Difference]: Start difference. First operand 10961 states and 17437 transitions. Second operand 3 states. [2019-10-13 21:13:34,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:34,405 INFO L93 Difference]: Finished difference Result 27702 states and 45123 transitions. [2019-10-13 21:13:34,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:34,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2019-10-13 21:13:34,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:35,232 INFO L225 Difference]: With dead ends: 27702 [2019-10-13 21:13:35,232 INFO L226 Difference]: Without dead ends: 16856 [2019-10-13 21:13:35,274 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:35,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16856 states. [2019-10-13 21:13:35,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16856 to 16849. [2019-10-13 21:13:35,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16849 states. [2019-10-13 21:13:35,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16849 states to 16849 states and 27693 transitions. [2019-10-13 21:13:35,894 INFO L78 Accepts]: Start accepts. Automaton has 16849 states and 27693 transitions. Word has length 255 [2019-10-13 21:13:35,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:35,895 INFO L462 AbstractCegarLoop]: Abstraction has 16849 states and 27693 transitions. [2019-10-13 21:13:35,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:35,895 INFO L276 IsEmpty]: Start isEmpty. Operand 16849 states and 27693 transitions. [2019-10-13 21:13:35,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-10-13 21:13:35,960 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:35,961 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] [2019-10-13 21:13:35,961 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:35,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:35,962 INFO L82 PathProgramCache]: Analyzing trace with hash 826554327, now seen corresponding path program 1 times [2019-10-13 21:13:35,962 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:35,962 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258159881] [2019-10-13 21:13:35,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:35,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:35,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:36,179 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-10-13 21:13:36,179 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258159881] [2019-10-13 21:13:36,180 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:36,180 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:13:36,180 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563937031] [2019-10-13 21:13:36,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:13:36,181 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:36,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:13:36,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:13:36,182 INFO L87 Difference]: Start difference. First operand 16849 states and 27693 transitions. Second operand 4 states. [2019-10-13 21:13:38,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:38,171 INFO L93 Difference]: Finished difference Result 50230 states and 83129 transitions. [2019-10-13 21:13:38,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:13:38,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 256 [2019-10-13 21:13:38,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:38,334 INFO L225 Difference]: With dead ends: 50230 [2019-10-13 21:13:38,335 INFO L226 Difference]: Without dead ends: 33418 [2019-10-13 21:13:38,389 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:13:38,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33418 states. [2019-10-13 21:13:39,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33418 to 33415. [2019-10-13 21:13:39,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33415 states. [2019-10-13 21:13:39,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33415 states to 33415 states and 54945 transitions. [2019-10-13 21:13:39,991 INFO L78 Accepts]: Start accepts. Automaton has 33415 states and 54945 transitions. Word has length 256 [2019-10-13 21:13:39,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:39,992 INFO L462 AbstractCegarLoop]: Abstraction has 33415 states and 54945 transitions. [2019-10-13 21:13:39,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:13:39,992 INFO L276 IsEmpty]: Start isEmpty. Operand 33415 states and 54945 transitions. [2019-10-13 21:13:40,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-13 21:13:40,112 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:40,112 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] [2019-10-13 21:13:40,113 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:40,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:40,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1927960127, now seen corresponding path program 1 times [2019-10-13 21:13:40,113 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:40,114 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906274716] [2019-10-13 21:13:40,114 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:40,114 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:40,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:40,381 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-10-13 21:13:40,381 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906274716] [2019-10-13 21:13:40,382 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:40,382 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:13:40,382 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017110289] [2019-10-13 21:13:40,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:13:40,383 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:40,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:13:40,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:13:40,384 INFO L87 Difference]: Start difference. First operand 33415 states and 54945 transitions. Second operand 11 states. [2019-10-13 21:13:41,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:41,816 INFO L93 Difference]: Finished difference Result 33418 states and 54947 transitions. [2019-10-13 21:13:41,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:13:41,816 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 249 [2019-10-13 21:13:41,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:41,895 INFO L225 Difference]: With dead ends: 33418 [2019-10-13 21:13:41,896 INFO L226 Difference]: Without dead ends: 16824 [2019-10-13 21:13:41,945 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 [2019-10-13 21:13:41,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16824 states. [2019-10-13 21:13:42,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16824 to 16824. [2019-10-13 21:13:42,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16824 states. [2019-10-13 21:13:42,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16824 states to 16824 states and 27623 transitions. [2019-10-13 21:13:42,590 INFO L78 Accepts]: Start accepts. Automaton has 16824 states and 27623 transitions. Word has length 249 [2019-10-13 21:13:42,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:42,590 INFO L462 AbstractCegarLoop]: Abstraction has 16824 states and 27623 transitions. [2019-10-13 21:13:42,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:13:42,591 INFO L276 IsEmpty]: Start isEmpty. Operand 16824 states and 27623 transitions. [2019-10-13 21:13:42,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-13 21:13:42,645 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:42,645 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] [2019-10-13 21:13:42,646 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:42,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:42,646 INFO L82 PathProgramCache]: Analyzing trace with hash 225047104, now seen corresponding path program 1 times [2019-10-13 21:13:42,646 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:42,647 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782248107] [2019-10-13 21:13:42,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:42,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:42,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:42,817 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2019-10-13 21:13:42,817 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782248107] [2019-10-13 21:13:42,818 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:42,818 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:42,818 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942855796] [2019-10-13 21:13:42,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:42,819 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:42,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:42,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:42,820 INFO L87 Difference]: Start difference. First operand 16824 states and 27623 transitions. Second operand 3 states. [2019-10-13 21:13:43,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:43,581 INFO L93 Difference]: Finished difference Result 33600 states and 55282 transitions. [2019-10-13 21:13:43,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:43,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2019-10-13 21:13:43,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:43,641 INFO L225 Difference]: With dead ends: 33600 [2019-10-13 21:13:43,641 INFO L226 Difference]: Without dead ends: 16817 [2019-10-13 21:13:43,685 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:43,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16817 states. [2019-10-13 21:13:44,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16817 to 16817. [2019-10-13 21:13:44,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16817 states. [2019-10-13 21:13:44,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16817 states to 16817 states and 27601 transitions. [2019-10-13 21:13:44,429 INFO L78 Accepts]: Start accepts. Automaton has 16817 states and 27601 transitions. Word has length 274 [2019-10-13 21:13:44,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:44,429 INFO L462 AbstractCegarLoop]: Abstraction has 16817 states and 27601 transitions. [2019-10-13 21:13:44,430 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:44,430 INFO L276 IsEmpty]: Start isEmpty. Operand 16817 states and 27601 transitions. [2019-10-13 21:13:44,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-13 21:13:44,483 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:44,484 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] [2019-10-13 21:13:44,484 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:44,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:44,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1480022866, now seen corresponding path program 1 times [2019-10-13 21:13:44,485 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:44,485 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115211754] [2019-10-13 21:13:44,485 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:44,485 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:44,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:44,661 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2019-10-13 21:13:44,661 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115211754] [2019-10-13 21:13:44,662 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:44,662 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:13:44,662 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965187686] [2019-10-13 21:13:44,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:13:44,663 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:44,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:13:44,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:13:44,663 INFO L87 Difference]: Start difference. First operand 16817 states and 27601 transitions. Second operand 4 states. [2019-10-13 21:13:45,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:45,867 INFO L93 Difference]: Finished difference Result 33568 states and 55122 transitions. [2019-10-13 21:13:45,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:13:45,868 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 284 [2019-10-13 21:13:45,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:45,918 INFO L225 Difference]: With dead ends: 33568 [2019-10-13 21:13:45,918 INFO L226 Difference]: Without dead ends: 16817 [2019-10-13 21:13:45,966 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:13:45,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16817 states. [2019-10-13 21:13:46,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16817 to 16817. [2019-10-13 21:13:46,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16817 states. [2019-10-13 21:13:46,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16817 states to 16817 states and 26058 transitions. [2019-10-13 21:13:46,600 INFO L78 Accepts]: Start accepts. Automaton has 16817 states and 26058 transitions. Word has length 284 [2019-10-13 21:13:46,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:46,601 INFO L462 AbstractCegarLoop]: Abstraction has 16817 states and 26058 transitions. [2019-10-13 21:13:46,601 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:13:46,601 INFO L276 IsEmpty]: Start isEmpty. Operand 16817 states and 26058 transitions. [2019-10-13 21:13:46,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2019-10-13 21:13:46,640 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:46,641 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:46,641 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:46,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:46,641 INFO L82 PathProgramCache]: Analyzing trace with hash 523294158, now seen corresponding path program 1 times [2019-10-13 21:13:46,642 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:46,642 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728503975] [2019-10-13 21:13:46,642 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:46,642 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:46,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:47,094 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-10-13 21:13:47,094 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728503975] [2019-10-13 21:13:47,095 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:47,095 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-13 21:13:47,095 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872840916] [2019-10-13 21:13:47,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-13 21:13:47,096 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:47,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-13 21:13:47,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=414, Unknown=0, NotChecked=0, Total=462 [2019-10-13 21:13:47,097 INFO L87 Difference]: Start difference. First operand 16817 states and 26058 transitions. Second operand 22 states.