/usr/bin/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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec9_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:28:11,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:28:11,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:28:11,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:28:11,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:28:11,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:28:11,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:28:11,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:28:11,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:28:11,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:28:11,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:28:11,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:28:11,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:28:11,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:28:11,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:28:11,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:28:11,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:28:11,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:28:11,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:28:11,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:28:11,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:28:11,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:28:11,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:28:11,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:28:11,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:28:11,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:28:11,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:28:11,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:28:11,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:28:11,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:28:11,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:28:11,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:28:11,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:28:11,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:28:11,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:28:11,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:28:11,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:28:11,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:28:11,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:28:11,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:28:11,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:28:11,344 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 [2019-11-07 04:28:11,366 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:28:11,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:28:11,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:28:11,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:28:11,371 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:28:11,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:28:11,372 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:28:11,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:28:11,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:28:11,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:28:11,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:28:11,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:28:11,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:28:11,375 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:28:11,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:28:11,375 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:28:11,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:28:11,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:28:11,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:28:11,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:28:11,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:28:11,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:28:11,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:28:11,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:28:11,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:28:11,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:28:11,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:28:11,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:28:11,378 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:28:11,694 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:28:11,712 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:28:11,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:28:11,716 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:28:11,716 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:28:11,717 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_productSimulator.cil.c [2019-11-07 04:28:11,778 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0600bb8c9/975221ed74b94b66bd9efc3b4969bff6/FLAG3b85af9bd [2019-11-07 04:28:12,411 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:28:12,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_productSimulator.cil.c [2019-11-07 04:28:12,444 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0600bb8c9/975221ed74b94b66bd9efc3b4969bff6/FLAG3b85af9bd [2019-11-07 04:28:12,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0600bb8c9/975221ed74b94b66bd9efc3b4969bff6 [2019-11-07 04:28:12,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:28:12,667 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:28:12,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:28:12,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:28:12,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:28:12,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:28:12" (1/1) ... [2019-11-07 04:28:12,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2665c650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:12, skipping insertion in model container [2019-11-07 04:28:12,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:28:12" (1/1) ... [2019-11-07 04:28:12,692 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:28:12,870 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:28:13,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:28:13,726 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:28:13,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:28:14,112 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:28:14,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:14 WrapperNode [2019-11-07 04:28:14,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:28:14,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:28:14,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:28:14,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:28:14,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:14" (1/1) ... [2019-11-07 04:28:14,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:14" (1/1) ... [2019-11-07 04:28:14,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:14" (1/1) ... [2019-11-07 04:28:14,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:14" (1/1) ... [2019-11-07 04:28:14,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:14" (1/1) ... [2019-11-07 04:28:14,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:14" (1/1) ... [2019-11-07 04:28:14,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:14" (1/1) ... [2019-11-07 04:28:14,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:28:14,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:28:14,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:28:14,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:28:14,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:14" (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 [2019-11-07 04:28:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:28:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:28:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:28:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:28:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:28:14,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:28:14,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:28:14,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:28:14,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:28:14,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:28:14,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:28:14,472 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:28:14,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:28:14,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:28:14,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:28:14,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:28:14,476 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:28:14,476 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:28:14,477 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:28:14,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:28:14,477 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:28:14,477 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:28:14,478 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:28:14,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:28:14,478 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:28:14,479 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:28:14,479 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-11-07 04:28:14,480 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-11-07 04:28:14,480 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-11-07 04:28:14,480 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-11-07 04:28:14,480 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-11-07 04:28:14,480 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-11-07 04:28:14,481 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:28:14,481 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:28:14,481 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-11-07 04:28:14,481 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-11-07 04:28:14,482 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-11-07 04:28:14,482 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-11-07 04:28:14,482 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-11-07 04:28:14,482 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-11-07 04:28:14,482 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-11-07 04:28:14,482 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-11-07 04:28:14,483 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:28:14,483 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:28:14,483 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:28:14,483 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:28:14,483 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:28:14,483 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:28:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:28:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:28:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:28:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:28:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:28:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:28:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:28:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:28:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-11-07 04:28:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-11-07 04:28:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:28:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-11-07 04:28:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-11-07 04:28:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:28:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-11-07 04:28:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-11-07 04:28:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:28:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:28:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:28:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:28:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:28:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:28:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:28:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:28:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:28:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:28:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:28:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:28:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:28:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:28:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:28:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:28:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:28:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:28:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:28:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:28:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:28:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:28:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:28:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:28:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-11-07 04:28:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-11-07 04:28:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:28:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:28:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:28:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:28:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-11-07 04:28:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-11-07 04:28:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-11-07 04:28:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-11-07 04:28:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-11-07 04:28:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-11-07 04:28:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:28:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-11-07 04:28:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-11-07 04:28:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:28:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:28:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:28:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:28:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:28:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:28:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:28:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:28:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:28:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:28:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:28:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:28:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:28:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:28:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:28:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:28:14,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:28:14,501 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:28:14,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:28:14,501 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:28:14,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:28:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:28:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:28:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:28:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:28:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:28:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:28:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:28:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:28:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:28:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:28:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:28:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:28:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:28:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:28:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:28:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:28:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:28:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:28:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:28:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:28:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:28:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:28:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:28:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:28:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:28:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:28:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:28:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:28:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:28:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:28:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:28:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:28:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:28:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:28:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:28:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:28:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:28:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:28:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:28:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:28:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:28:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:28:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:28:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:28:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:28:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:28:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:28:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:28:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:28:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:28:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:28:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:28:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:28:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:28:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:28:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:28:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:28:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:28:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:28:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:28:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:28:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:28:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:28:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:28:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:28:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:28:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:28:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:28:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:28:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:28:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:28:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:28:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:28:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:28:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:28:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:28:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:28:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:28:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-11-07 04:28:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:28:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-11-07 04:28:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-11-07 04:28:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-11-07 04:28:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-11-07 04:28:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-11-07 04:28:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-11-07 04:28:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-11-07 04:28:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-11-07 04:28:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-11-07 04:28:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-11-07 04:28:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-11-07 04:28:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-11-07 04:28:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-11-07 04:28:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-11-07 04:28:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-11-07 04:28:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:28:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:28:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:28:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:28:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:28:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:28:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:28:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:28:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:28:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:28:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:28:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:28:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:28:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:28:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:28:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:28:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:28:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:28:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:28:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:28:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:28:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:28:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-11-07 04:28:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-11-07 04:28:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-11-07 04:28:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-11-07 04:28:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-11-07 04:28:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-11-07 04:28:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:28:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:28:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:28:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:28:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:28:14,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:28:14,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:28:14,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:28:14,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:28:14,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:28:14,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:28:14,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:28:14,544 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:28:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:28:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:28:14,549 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:28:14,549 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:28:14,549 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:28:14,549 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:28:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-11-07 04:28:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-11-07 04:28:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-11-07 04:28:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-11-07 04:28:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-11-07 04:28:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-11-07 04:28:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-11-07 04:28:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-11-07 04:28:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:28:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:28:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:28:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:28:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:28:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:28:14,552 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:28:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:28:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:28:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:28:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:28:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:28:14,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:28:19,503 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:28:19,504 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:28:19,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:28:19 BoogieIcfgContainer [2019-11-07 04:28:19,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:28:19,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:28:19,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:28:19,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:28:19,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:28:12" (1/3) ... [2019-11-07 04:28:19,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676eedb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:28:19, skipping insertion in model container [2019-11-07 04:28:19,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:14" (2/3) ... [2019-11-07 04:28:19,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676eedb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:28:19, skipping insertion in model container [2019-11-07 04:28:19,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:28:19" (3/3) ... [2019-11-07 04:28:19,519 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_productSimulator.cil.c [2019-11-07 04:28:19,531 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:28:19,547 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:28:19,559 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:28:19,601 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:28:19,602 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:28:19,602 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:28:19,602 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:28:19,602 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:28:19,602 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:28:19,602 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:28:19,602 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:28:19,634 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states. [2019-11-07 04:28:19,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-11-07 04:28:19,655 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:19,656 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:28:19,658 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:19,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:19,664 INFO L82 PathProgramCache]: Analyzing trace with hash -51310916, now seen corresponding path program 1 times [2019-11-07 04:28:19,675 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:19,675 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476008857] [2019-11-07 04:28:19,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:20,288 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-11-07 04:28:20,288 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476008857] [2019-11-07 04:28:20,289 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:20,290 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 04:28:20,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626777508] [2019-11-07 04:28:20,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 04:28:20,296 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:20,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 04:28:20,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:28:20,314 INFO L87 Difference]: Start difference. First operand 610 states. Second operand 6 states. [2019-11-07 04:28:20,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:20,514 INFO L93 Difference]: Finished difference Result 1142 states and 1432 transitions. [2019-11-07 04:28:20,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:28:20,518 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2019-11-07 04:28:20,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:20,562 INFO L225 Difference]: With dead ends: 1142 [2019-11-07 04:28:20,562 INFO L226 Difference]: Without dead ends: 583 [2019-11-07 04:28:20,575 INFO L630 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 [2019-11-07 04:28:20,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-11-07 04:28:20,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 583. [2019-11-07 04:28:20,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2019-11-07 04:28:20,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 718 transitions. [2019-11-07 04:28:20,686 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 718 transitions. Word has length 140 [2019-11-07 04:28:20,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:28:20,689 INFO L462 AbstractCegarLoop]: Abstraction has 583 states and 718 transitions. [2019-11-07 04:28:20,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 04:28:20,689 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 718 transitions. [2019-11-07 04:28:20,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-11-07 04:28:20,698 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:20,698 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 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] [2019-11-07 04:28:20,699 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:20,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:20,699 INFO L82 PathProgramCache]: Analyzing trace with hash -910751636, now seen corresponding path program 1 times [2019-11-07 04:28:20,699 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:20,700 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480322108] [2019-11-07 04:28:20,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-11-07 04:28:21,015 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480322108] [2019-11-07 04:28:21,015 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:21,015 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 04:28:21,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219357265] [2019-11-07 04:28:21,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 04:28:21,031 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:21,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 04:28:21,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:28:21,036 INFO L87 Difference]: Start difference. First operand 583 states and 718 transitions. Second operand 4 states. [2019-11-07 04:28:21,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:21,980 INFO L93 Difference]: Finished difference Result 1132 states and 1424 transitions. [2019-11-07 04:28:21,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 04:28:21,980 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 146 [2019-11-07 04:28:21,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:21,987 INFO L225 Difference]: With dead ends: 1132 [2019-11-07 04:28:21,987 INFO L226 Difference]: Without dead ends: 581 [2019-11-07 04:28:21,990 INFO L630 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 [2019-11-07 04:28:21,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-11-07 04:28:22,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 581. [2019-11-07 04:28:22,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2019-11-07 04:28:22,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 707 transitions. [2019-11-07 04:28:22,042 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 707 transitions. Word has length 146 [2019-11-07 04:28:22,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:28:22,043 INFO L462 AbstractCegarLoop]: Abstraction has 581 states and 707 transitions. [2019-11-07 04:28:22,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 04:28:22,043 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 707 transitions. [2019-11-07 04:28:22,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-11-07 04:28:22,050 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:22,050 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 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] [2019-11-07 04:28:22,050 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:22,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:22,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1396711102, now seen corresponding path program 1 times [2019-11-07 04:28:22,051 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:22,051 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886664993] [2019-11-07 04:28:22,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:22,285 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-11-07 04:28:22,286 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886664993] [2019-11-07 04:28:22,286 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:22,286 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:28:22,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62505401] [2019-11-07 04:28:22,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:28:22,290 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:22,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:28:22,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:28:22,291 INFO L87 Difference]: Start difference. First operand 581 states and 707 transitions. Second operand 3 states. [2019-11-07 04:28:22,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:22,439 INFO L93 Difference]: Finished difference Result 1125 states and 1383 transitions. [2019-11-07 04:28:22,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:28:22,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-11-07 04:28:22,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:22,444 INFO L225 Difference]: With dead ends: 1125 [2019-11-07 04:28:22,444 INFO L226 Difference]: Without dead ends: 580 [2019-11-07 04:28:22,446 INFO L630 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 [2019-11-07 04:28:22,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2019-11-07 04:28:22,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2019-11-07 04:28:22,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-11-07 04:28:22,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 703 transitions. [2019-11-07 04:28:22,480 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 703 transitions. Word has length 159 [2019-11-07 04:28:22,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:28:22,480 INFO L462 AbstractCegarLoop]: Abstraction has 580 states and 703 transitions. [2019-11-07 04:28:22,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:28:22,480 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 703 transitions. [2019-11-07 04:28:22,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-11-07 04:28:22,484 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:22,484 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 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] [2019-11-07 04:28:22,485 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:22,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:22,485 INFO L82 PathProgramCache]: Analyzing trace with hash 523219015, now seen corresponding path program 1 times [2019-11-07 04:28:22,485 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:22,485 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061181069] [2019-11-07 04:28:22,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:22,708 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-11-07 04:28:22,709 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061181069] [2019-11-07 04:28:22,709 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:22,709 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 04:28:22,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526720136] [2019-11-07 04:28:22,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 04:28:22,711 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:22,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 04:28:22,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:28:22,712 INFO L87 Difference]: Start difference. First operand 580 states and 703 transitions. Second operand 4 states. [2019-11-07 04:28:23,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:23,477 INFO L93 Difference]: Finished difference Result 1097 states and 1330 transitions. [2019-11-07 04:28:23,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 04:28:23,477 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2019-11-07 04:28:23,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:23,481 INFO L225 Difference]: With dead ends: 1097 [2019-11-07 04:28:23,482 INFO L226 Difference]: Without dead ends: 577 [2019-11-07 04:28:23,484 INFO L630 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 [2019-11-07 04:28:23,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2019-11-07 04:28:23,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2019-11-07 04:28:23,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-11-07 04:28:23,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 686 transitions. [2019-11-07 04:28:23,518 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 686 transitions. Word has length 160 [2019-11-07 04:28:23,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:28:23,519 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 686 transitions. [2019-11-07 04:28:23,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 04:28:23,519 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 686 transitions. [2019-11-07 04:28:23,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-11-07 04:28:23,522 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:23,522 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 3, 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] [2019-11-07 04:28:23,523 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:23,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:23,523 INFO L82 PathProgramCache]: Analyzing trace with hash 175115770, now seen corresponding path program 1 times [2019-11-07 04:28:23,524 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:23,524 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624783673] [2019-11-07 04:28:23,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:23,690 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-11-07 04:28:23,691 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624783673] [2019-11-07 04:28:23,691 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:23,691 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:28:23,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982977973] [2019-11-07 04:28:23,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:28:23,692 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:23,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:28:23,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:28:23,693 INFO L87 Difference]: Start difference. First operand 577 states and 686 transitions. Second operand 3 states. [2019-11-07 04:28:23,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:23,727 INFO L93 Difference]: Finished difference Result 909 states and 1074 transitions. [2019-11-07 04:28:23,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:28:23,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-11-07 04:28:23,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:23,734 INFO L225 Difference]: With dead ends: 909 [2019-11-07 04:28:23,734 INFO L226 Difference]: Without dead ends: 579 [2019-11-07 04:28:23,735 INFO L630 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 [2019-11-07 04:28:23,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2019-11-07 04:28:23,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2019-11-07 04:28:23,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2019-11-07 04:28:23,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 688 transitions. [2019-11-07 04:28:23,818 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 688 transitions. Word has length 181 [2019-11-07 04:28:23,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:28:23,819 INFO L462 AbstractCegarLoop]: Abstraction has 579 states and 688 transitions. [2019-11-07 04:28:23,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:28:23,820 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 688 transitions. [2019-11-07 04:28:23,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-11-07 04:28:23,823 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:23,823 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 3, 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] [2019-11-07 04:28:23,823 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:23,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:23,824 INFO L82 PathProgramCache]: Analyzing trace with hash -788599818, now seen corresponding path program 1 times [2019-11-07 04:28:23,824 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:23,824 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095883395] [2019-11-07 04:28:23,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:23,981 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-11-07 04:28:23,981 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095883395] [2019-11-07 04:28:23,981 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:23,982 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:28:23,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756831909] [2019-11-07 04:28:23,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:28:23,983 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:23,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:28:23,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:28:23,983 INFO L87 Difference]: Start difference. First operand 579 states and 688 transitions. Second operand 3 states. [2019-11-07 04:28:24,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:24,027 INFO L93 Difference]: Finished difference Result 1106 states and 1345 transitions. [2019-11-07 04:28:24,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:28:24,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2019-11-07 04:28:24,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:24,032 INFO L225 Difference]: With dead ends: 1106 [2019-11-07 04:28:24,033 INFO L226 Difference]: Without dead ends: 633 [2019-11-07 04:28:24,034 INFO L630 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 [2019-11-07 04:28:24,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2019-11-07 04:28:24,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 632. [2019-11-07 04:28:24,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2019-11-07 04:28:24,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 775 transitions. [2019-11-07 04:28:24,068 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 775 transitions. Word has length 188 [2019-11-07 04:28:24,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:28:24,069 INFO L462 AbstractCegarLoop]: Abstraction has 632 states and 775 transitions. [2019-11-07 04:28:24,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:28:24,069 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 775 transitions. [2019-11-07 04:28:24,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-11-07 04:28:24,073 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:24,073 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 3, 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] [2019-11-07 04:28:24,073 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:24,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:24,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1088119219, now seen corresponding path program 1 times [2019-11-07 04:28:24,074 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:24,074 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692495276] [2019-11-07 04:28:24,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:24,289 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-11-07 04:28:24,289 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692495276] [2019-11-07 04:28:24,290 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:24,290 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:28:24,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499879389] [2019-11-07 04:28:24,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:28:24,291 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:24,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:28:24,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:28:24,292 INFO L87 Difference]: Start difference. First operand 632 states and 775 transitions. Second operand 3 states. [2019-11-07 04:28:24,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:24,350 INFO L93 Difference]: Finished difference Result 1042 states and 1270 transitions. [2019-11-07 04:28:24,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:28:24,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-11-07 04:28:24,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:24,357 INFO L225 Difference]: With dead ends: 1042 [2019-11-07 04:28:24,358 INFO L226 Difference]: Without dead ends: 724 [2019-11-07 04:28:24,362 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:28:24,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2019-11-07 04:28:24,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 723. [2019-11-07 04:28:24,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2019-11-07 04:28:24,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 880 transitions. [2019-11-07 04:28:24,407 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 880 transitions. Word has length 189 [2019-11-07 04:28:24,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:28:24,410 INFO L462 AbstractCegarLoop]: Abstraction has 723 states and 880 transitions. [2019-11-07 04:28:24,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:28:24,410 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 880 transitions. [2019-11-07 04:28:24,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2019-11-07 04:28:24,417 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:24,417 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 04:28:24,418 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:24,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:24,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1089171071, now seen corresponding path program 1 times [2019-11-07 04:28:24,419 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:24,419 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767721200] [2019-11-07 04:28:24,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:24,959 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-11-07 04:28:24,959 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767721200] [2019-11-07 04:28:24,959 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:24,960 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-11-07 04:28:24,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256108524] [2019-11-07 04:28:24,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-07 04:28:24,964 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:24,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-07 04:28:24,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-11-07 04:28:24,966 INFO L87 Difference]: Start difference. First operand 723 states and 880 transitions. Second operand 16 states. [2019-11-07 04:28:31,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:31,704 INFO L93 Difference]: Finished difference Result 1722 states and 2087 transitions. [2019-11-07 04:28:31,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-07 04:28:31,704 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 304 [2019-11-07 04:28:31,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:31,718 INFO L225 Difference]: With dead ends: 1722 [2019-11-07 04:28:31,718 INFO L226 Difference]: Without dead ends: 1347 [2019-11-07 04:28:31,721 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2019-11-07 04:28:31,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2019-11-07 04:28:31,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1336. [2019-11-07 04:28:31,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2019-11-07 04:28:31,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1638 transitions. [2019-11-07 04:28:31,829 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1638 transitions. Word has length 304 [2019-11-07 04:28:31,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:28:31,830 INFO L462 AbstractCegarLoop]: Abstraction has 1336 states and 1638 transitions. [2019-11-07 04:28:31,830 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-07 04:28:31,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1638 transitions. [2019-11-07 04:28:31,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2019-11-07 04:28:31,838 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:31,839 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 04:28:31,839 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:31,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:31,840 INFO L82 PathProgramCache]: Analyzing trace with hash 2113196456, now seen corresponding path program 1 times [2019-11-07 04:28:31,840 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:31,840 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896258646] [2019-11-07 04:28:31,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:32,167 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-11-07 04:28:32,167 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896258646] [2019-11-07 04:28:32,169 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:32,170 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:28:32,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329471897] [2019-11-07 04:28:32,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:28:32,172 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:32,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:28:32,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:28:32,173 INFO L87 Difference]: Start difference. First operand 1336 states and 1638 transitions. Second operand 3 states. [2019-11-07 04:28:32,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:32,351 INFO L93 Difference]: Finished difference Result 3803 states and 4784 transitions. [2019-11-07 04:28:32,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:28:32,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 315 [2019-11-07 04:28:32,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:32,369 INFO L225 Difference]: With dead ends: 3803 [2019-11-07 04:28:32,369 INFO L226 Difference]: Without dead ends: 2508 [2019-11-07 04:28:32,375 INFO L630 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 [2019-11-07 04:28:32,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2019-11-07 04:28:32,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2505. [2019-11-07 04:28:32,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2505 states. [2019-11-07 04:28:32,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3120 transitions. [2019-11-07 04:28:32,553 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3120 transitions. Word has length 315 [2019-11-07 04:28:32,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:28:32,554 INFO L462 AbstractCegarLoop]: Abstraction has 2505 states and 3120 transitions. [2019-11-07 04:28:32,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:28:32,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3120 transitions. [2019-11-07 04:28:32,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2019-11-07 04:28:32,568 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:32,569 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 04:28:32,569 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:32,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:32,569 INFO L82 PathProgramCache]: Analyzing trace with hash 365566248, now seen corresponding path program 1 times [2019-11-07 04:28:32,570 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:32,570 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184838998] [2019-11-07 04:28:32,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:32,781 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-11-07 04:28:32,782 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184838998] [2019-11-07 04:28:32,783 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:32,783 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:28:32,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409958265] [2019-11-07 04:28:32,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:28:32,784 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:32,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:28:32,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:28:32,785 INFO L87 Difference]: Start difference. First operand 2505 states and 3120 transitions. Second operand 3 states. [2019-11-07 04:28:33,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:33,153 INFO L93 Difference]: Finished difference Result 6057 states and 7742 transitions. [2019-11-07 04:28:33,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:28:33,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 317 [2019-11-07 04:28:33,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:33,183 INFO L225 Difference]: With dead ends: 6057 [2019-11-07 04:28:33,183 INFO L226 Difference]: Without dead ends: 3596 [2019-11-07 04:28:33,195 INFO L630 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 [2019-11-07 04:28:33,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3596 states. [2019-11-07 04:28:33,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3596 to 3593. [2019-11-07 04:28:33,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3593 states. [2019-11-07 04:28:33,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 4477 transitions. [2019-11-07 04:28:33,483 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 4477 transitions. Word has length 317 [2019-11-07 04:28:33,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:28:33,484 INFO L462 AbstractCegarLoop]: Abstraction has 3593 states and 4477 transitions. [2019-11-07 04:28:33,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:28:33,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 4477 transitions. [2019-11-07 04:28:33,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2019-11-07 04:28:33,508 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:33,509 INFO L410 BasicCegarLoop]: trace histogram [8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 04:28:33,509 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:33,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:33,510 INFO L82 PathProgramCache]: Analyzing trace with hash 451580426, now seen corresponding path program 1 times [2019-11-07 04:28:33,510 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:33,510 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911776079] [2019-11-07 04:28:33,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:33,900 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-11-07 04:28:33,901 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911776079] [2019-11-07 04:28:33,901 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:33,901 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 04:28:33,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215838678] [2019-11-07 04:28:33,902 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 04:28:33,902 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:33,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 04:28:33,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:28:33,903 INFO L87 Difference]: Start difference. First operand 3593 states and 4477 transitions. Second operand 11 states. [2019-11-07 04:28:39,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:39,092 INFO L93 Difference]: Finished difference Result 6939 states and 8589 transitions. [2019-11-07 04:28:39,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 04:28:39,092 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 300 [2019-11-07 04:28:39,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:39,124 INFO L225 Difference]: With dead ends: 6939 [2019-11-07 04:28:39,125 INFO L226 Difference]: Without dead ends: 5100 [2019-11-07 04:28:39,132 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2019-11-07 04:28:39,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5100 states. [2019-11-07 04:28:39,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5100 to 5063. [2019-11-07 04:28:39,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5063 states. [2019-11-07 04:28:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5063 states to 5063 states and 6312 transitions. [2019-11-07 04:28:39,479 INFO L78 Accepts]: Start accepts. Automaton has 5063 states and 6312 transitions. Word has length 300 [2019-11-07 04:28:39,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:28:39,480 INFO L462 AbstractCegarLoop]: Abstraction has 5063 states and 6312 transitions. [2019-11-07 04:28:39,481 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 04:28:39,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5063 states and 6312 transitions. [2019-11-07 04:28:39,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2019-11-07 04:28:39,500 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:39,500 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 04:28:39,501 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:39,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:39,501 INFO L82 PathProgramCache]: Analyzing trace with hash 702539881, now seen corresponding path program 1 times [2019-11-07 04:28:39,501 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:39,502 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622759069] [2019-11-07 04:28:39,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:39,740 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-11-07 04:28:39,741 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622759069] [2019-11-07 04:28:39,741 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:39,741 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:28:39,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636254432] [2019-11-07 04:28:39,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:28:39,743 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:39,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:28:39,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:28:39,743 INFO L87 Difference]: Start difference. First operand 5063 states and 6312 transitions. Second operand 3 states. [2019-11-07 04:28:39,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:39,949 INFO L93 Difference]: Finished difference Result 10504 states and 13364 transitions. [2019-11-07 04:28:39,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:28:39,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2019-11-07 04:28:39,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:39,984 INFO L225 Difference]: With dead ends: 10504 [2019-11-07 04:28:39,985 INFO L226 Difference]: Without dead ends: 5675 [2019-11-07 04:28:40,003 INFO L630 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 [2019-11-07 04:28:40,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5675 states. [2019-11-07 04:28:40,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5675 to 5669. [2019-11-07 04:28:40,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5669 states. [2019-11-07 04:28:40,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7290 transitions. [2019-11-07 04:28:40,575 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7290 transitions. Word has length 325 [2019-11-07 04:28:40,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:28:40,576 INFO L462 AbstractCegarLoop]: Abstraction has 5669 states and 7290 transitions. [2019-11-07 04:28:40,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:28:40,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7290 transitions. [2019-11-07 04:28:40,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2019-11-07 04:28:40,598 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:40,598 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 04:28:40,598 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:40,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:40,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1525336780, now seen corresponding path program 1 times [2019-11-07 04:28:40,599 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:40,599 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195103583] [2019-11-07 04:28:40,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-11-07 04:28:40,832 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195103583] [2019-11-07 04:28:40,832 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:40,832 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:28:40,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761420591] [2019-11-07 04:28:40,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:28:40,835 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:40,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:28:40,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:28:40,836 INFO L87 Difference]: Start difference. First operand 5669 states and 7290 transitions. Second operand 3 states. [2019-11-07 04:28:41,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:41,076 INFO L93 Difference]: Finished difference Result 12274 states and 16238 transitions. [2019-11-07 04:28:41,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:28:41,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 326 [2019-11-07 04:28:41,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:41,140 INFO L225 Difference]: With dead ends: 12274 [2019-11-07 04:28:41,140 INFO L226 Difference]: Without dead ends: 6839 [2019-11-07 04:28:41,165 INFO L630 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 [2019-11-07 04:28:41,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2019-11-07 04:28:41,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 6833. [2019-11-07 04:28:41,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6833 states. [2019-11-07 04:28:41,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6833 states to 6833 states and 9174 transitions. [2019-11-07 04:28:41,689 INFO L78 Accepts]: Start accepts. Automaton has 6833 states and 9174 transitions. Word has length 326 [2019-11-07 04:28:41,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:28:41,689 INFO L462 AbstractCegarLoop]: Abstraction has 6833 states and 9174 transitions. [2019-11-07 04:28:41,690 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:28:41,690 INFO L276 IsEmpty]: Start isEmpty. Operand 6833 states and 9174 transitions. [2019-11-07 04:28:41,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2019-11-07 04:28:41,723 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:41,726 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 04:28:41,726 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:41,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:41,726 INFO L82 PathProgramCache]: Analyzing trace with hash -635371857, now seen corresponding path program 1 times [2019-11-07 04:28:41,727 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:41,727 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575914665] [2019-11-07 04:28:41,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-11-07 04:28:42,655 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575914665] [2019-11-07 04:28:42,655 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:42,655 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:28:42,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006165087] [2019-11-07 04:28:42,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:28:42,656 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:42,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:28:42,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:28:42,657 INFO L87 Difference]: Start difference. First operand 6833 states and 9174 transitions. Second operand 3 states. [2019-11-07 04:28:42,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:42,951 INFO L93 Difference]: Finished difference Result 15670 states and 21746 transitions. [2019-11-07 04:28:42,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:28:42,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 327 [2019-11-07 04:28:42,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:42,993 INFO L225 Difference]: With dead ends: 15670 [2019-11-07 04:28:42,993 INFO L226 Difference]: Without dead ends: 9071 [2019-11-07 04:28:43,015 INFO L630 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 [2019-11-07 04:28:43,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9071 states. [2019-11-07 04:28:43,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9071 to 9065. [2019-11-07 04:28:43,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9065 states. [2019-11-07 04:28:43,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9065 states to 9065 states and 12774 transitions. [2019-11-07 04:28:43,494 INFO L78 Accepts]: Start accepts. Automaton has 9065 states and 12774 transitions. Word has length 327 [2019-11-07 04:28:43,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:28:43,495 INFO L462 AbstractCegarLoop]: Abstraction has 9065 states and 12774 transitions. [2019-11-07 04:28:43,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:28:43,495 INFO L276 IsEmpty]: Start isEmpty. Operand 9065 states and 12774 transitions. [2019-11-07 04:28:43,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2019-11-07 04:28:43,538 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:28:43,540 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 04:28:43,540 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:28:43,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:28:43,541 INFO L82 PathProgramCache]: Analyzing trace with hash -206002042, now seen corresponding path program 1 times [2019-11-07 04:28:43,541 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:28:43,541 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565288234] [2019-11-07 04:28:43,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:28:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:28:43,885 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-11-07 04:28:43,885 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565288234] [2019-11-07 04:28:43,885 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:28:43,886 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:28:43,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195008984] [2019-11-07 04:28:43,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:28:43,887 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:28:43,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:28:43,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:28:43,888 INFO L87 Difference]: Start difference. First operand 9065 states and 12774 transitions. Second operand 3 states. [2019-11-07 04:28:44,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:28:44,296 INFO L93 Difference]: Finished difference Result 22174 states and 32258 transitions. [2019-11-07 04:28:44,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:28:44,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 328 [2019-11-07 04:28:44,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:28:44,347 INFO L225 Difference]: With dead ends: 22174 [2019-11-07 04:28:44,347 INFO L226 Difference]: Without dead ends: 13343 [2019-11-07 04:28:44,376 INFO L630 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 [2019-11-07 04:28:44,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13343 states.