java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec7_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:56,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:56,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:56,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:56,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:56,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:56,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:56,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:56,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:56,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:56,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:56,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:56,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:56,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:56,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:56,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:56,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:56,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:56,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:56,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:56,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:56,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:56,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:56,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:56,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:56,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:56,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:56,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:56,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:56,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:56,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:56,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:56,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:56,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:56,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:56,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:56,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:56,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:56,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:56,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:56,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:56,190 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:17:56,215 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:56,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:56,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:56,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:56,219 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:56,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:56,219 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:56,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:56,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:56,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:56,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:56,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:56,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:56,221 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:56,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:56,221 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:56,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:56,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:56,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:56,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:56,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:56,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:56,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:56,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:56,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:56,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:56,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:56,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:56,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:17:56,521 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:56,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:56,537 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:56,538 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:56,539 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:56,539 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_productSimulator.cil.c [2019-10-13 21:17:56,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee06ea0fc/e4496088e5034b1ab11194920bc1818e/FLAGd042b1ad7 [2019-10-13 21:17:57,161 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:57,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_productSimulator.cil.c [2019-10-13 21:17:57,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee06ea0fc/e4496088e5034b1ab11194920bc1818e/FLAGd042b1ad7 [2019-10-13 21:17:57,413 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee06ea0fc/e4496088e5034b1ab11194920bc1818e [2019-10-13 21:17:57,423 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:57,425 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:57,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:57,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:57,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:57,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:57" (1/1) ... [2019-10-13 21:17:57,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5466f872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:57, skipping insertion in model container [2019-10-13 21:17:57,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:57" (1/1) ... [2019-10-13 21:17:57,442 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:57,536 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:58,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:58,420 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:58,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:58,711 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:58,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:58 WrapperNode [2019-10-13 21:17:58,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:58,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:58,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:58,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:58,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:58" (1/1) ... [2019-10-13 21:17:58,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:58" (1/1) ... [2019-10-13 21:17:58,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:58" (1/1) ... [2019-10-13 21:17:58,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:58" (1/1) ... [2019-10-13 21:17:58,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:58" (1/1) ... [2019-10-13 21:17:58,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:58" (1/1) ... [2019-10-13 21:17:58,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:58" (1/1) ... [2019-10-13 21:17:58,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:58,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:58,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:58,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:58,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:59,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:59,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:59,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:59,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:59,005 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-13 21:17:59,005 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-13 21:17:59,005 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-13 21:17:59,005 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-13 21:17:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-13 21:17:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-13 21:17:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:59,007 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-13 21:17:59,007 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-13 21:17:59,007 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-13 21:17:59,007 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-13 21:17:59,008 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-13 21:17:59,008 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-13 21:17:59,008 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-13 21:17:59,008 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-13 21:17:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:59,010 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:59,010 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:59,010 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:59,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:59,010 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:17:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:17:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:17:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:59,030 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:59,031 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:59,031 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:59,031 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:59,031 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:59,031 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:59,032 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:59,032 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:59,032 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:59,032 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:59,032 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:59,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:59,032 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:59,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:59,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:59,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:59,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:59,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:59,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-13 21:17:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-13 21:17:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-13 21:17:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-13 21:17:59,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:59,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-13 21:17:59,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-13 21:17:59,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:59,035 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:59,035 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:59,036 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:59,036 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:59,036 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:59,036 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:59,036 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:59,036 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:59,037 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:59,037 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:59,037 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:59,037 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:59,037 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:59,037 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:17:59,037 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:17:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:17:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 21:17:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-13 21:17:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-13 21:17:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-13 21:17:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-13 21:17:59,039 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-13 21:17:59,039 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-13 21:17:59,039 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:59,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-13 21:17:59,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-13 21:17:59,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:59,040 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:59,040 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:59,040 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:59,040 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:59,040 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:59,040 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:59,040 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:59,041 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:59,041 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:59,041 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:59,041 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:59,041 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:59,041 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:59,042 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:59,042 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:59,042 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:59,042 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:59,042 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:59,042 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:59,042 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:59,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:59,043 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:59,043 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:59,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:59,043 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:59,043 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:59,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:59,044 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:59,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:59,044 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:59,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:59,044 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:59,044 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:17:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:17:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:17:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-13 21:17:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-13 21:17:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-13 21:17:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-13 21:17:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-13 21:17:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-13 21:17:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-13 21:17:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-13 21:17:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-13 21:17:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-13 21:17:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-13 21:17:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-13 21:17:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-13 21:17:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-13 21:17:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 21:17:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:17:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:17:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:17:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-13 21:17:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-13 21:17:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-13 21:17:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-13 21:17:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-13 21:17:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-13 21:17:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-13 21:17:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-13 21:17:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-13 21:17:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-13 21:17:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-13 21:17:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-13 21:17:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-13 21:17:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-13 21:17:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:18:01,238 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:18:01,238 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:18:01,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:18:01 BoogieIcfgContainer [2019-10-13 21:18:01,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:18:01,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:18:01,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:18:01,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:18:01,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:57" (1/3) ... [2019-10-13 21:18:01,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57aded8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:18:01, skipping insertion in model container [2019-10-13 21:18:01,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:58" (2/3) ... [2019-10-13 21:18:01,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57aded8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:18:01, skipping insertion in model container [2019-10-13 21:18:01,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:18:01" (3/3) ... [2019-10-13 21:18:01,248 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_productSimulator.cil.c [2019-10-13 21:18:01,258 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:18:01,268 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:18:01,279 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:18:01,309 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:18:01,309 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:18:01,309 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:18:01,309 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:18:01,310 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:18:01,310 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:18:01,310 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:18:01,310 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:18:01,356 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states. [2019-10-13 21:18:01,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 21:18:01,392 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:01,394 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:01,396 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:01,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:01,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1981240698, now seen corresponding path program 1 times [2019-10-13 21:18:01,411 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:01,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341434103] [2019-10-13 21:18:01,411 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:01,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:01,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:02,165 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:18:02,166 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341434103] [2019-10-13 21:18:02,167 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:02,167 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:18:02,167 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838687428] [2019-10-13 21:18:02,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:18:02,175 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:02,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:18:02,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:18:02,192 INFO L87 Difference]: Start difference. First operand 810 states. Second operand 6 states. [2019-10-13 21:18:02,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:02,441 INFO L93 Difference]: Finished difference Result 1538 states and 2131 transitions. [2019-10-13 21:18:02,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:18:02,445 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 190 [2019-10-13 21:18:02,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:02,483 INFO L225 Difference]: With dead ends: 1538 [2019-10-13 21:18:02,483 INFO L226 Difference]: Without dead ends: 781 [2019-10-13 21:18:02,495 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:02,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2019-10-13 21:18:02,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 781. [2019-10-13 21:18:02,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 781 states. [2019-10-13 21:18:02,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1063 transitions. [2019-10-13 21:18:02,632 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1063 transitions. Word has length 190 [2019-10-13 21:18:02,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:02,640 INFO L462 AbstractCegarLoop]: Abstraction has 781 states and 1063 transitions. [2019-10-13 21:18:02,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:18:02,643 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1063 transitions. [2019-10-13 21:18:02,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 21:18:02,653 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:02,653 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:02,654 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:02,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:02,655 INFO L82 PathProgramCache]: Analyzing trace with hash 109619264, now seen corresponding path program 1 times [2019-10-13 21:18:02,655 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:02,655 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939967470] [2019-10-13 21:18:02,656 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:02,656 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:02,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:03,025 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:18:03,026 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939967470] [2019-10-13 21:18:03,026 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:03,026 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:18:03,027 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597699415] [2019-10-13 21:18:03,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:18:03,044 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:03,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:18:03,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:18:03,045 INFO L87 Difference]: Start difference. First operand 781 states and 1063 transitions. Second operand 4 states. [2019-10-13 21:18:03,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:03,874 INFO L93 Difference]: Finished difference Result 1519 states and 2091 transitions. [2019-10-13 21:18:03,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:18:03,874 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 196 [2019-10-13 21:18:03,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:03,881 INFO L225 Difference]: With dead ends: 1519 [2019-10-13 21:18:03,881 INFO L226 Difference]: Without dead ends: 782 [2019-10-13 21:18:03,884 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:18:03,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2019-10-13 21:18:03,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 782. [2019-10-13 21:18:03,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2019-10-13 21:18:03,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1058 transitions. [2019-10-13 21:18:03,925 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1058 transitions. Word has length 196 [2019-10-13 21:18:03,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:03,925 INFO L462 AbstractCegarLoop]: Abstraction has 782 states and 1058 transitions. [2019-10-13 21:18:03,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:18:03,926 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1058 transitions. [2019-10-13 21:18:03,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-13 21:18:03,930 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:03,930 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:03,931 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:03,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:03,931 INFO L82 PathProgramCache]: Analyzing trace with hash 818687885, now seen corresponding path program 1 times [2019-10-13 21:18:03,931 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:03,931 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010542169] [2019-10-13 21:18:03,932 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:03,932 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:03,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:04,152 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:18:04,153 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010542169] [2019-10-13 21:18:04,153 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:04,153 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:04,153 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313155401] [2019-10-13 21:18:04,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:04,154 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:04,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:04,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:04,155 INFO L87 Difference]: Start difference. First operand 782 states and 1058 transitions. Second operand 3 states. [2019-10-13 21:18:04,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:04,277 INFO L93 Difference]: Finished difference Result 2222 states and 3067 transitions. [2019-10-13 21:18:04,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:04,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-10-13 21:18:04,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:04,293 INFO L225 Difference]: With dead ends: 2222 [2019-10-13 21:18:04,294 INFO L226 Difference]: Without dead ends: 1485 [2019-10-13 21:18:04,298 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:04,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2019-10-13 21:18:04,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1482. [2019-10-13 21:18:04,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1482 states. [2019-10-13 21:18:04,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 2031 transitions. [2019-10-13 21:18:04,415 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 2031 transitions. Word has length 197 [2019-10-13 21:18:04,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:04,416 INFO L462 AbstractCegarLoop]: Abstraction has 1482 states and 2031 transitions. [2019-10-13 21:18:04,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:04,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 2031 transitions. [2019-10-13 21:18:04,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:18:04,427 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:04,428 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:04,428 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:04,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:04,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1701488253, now seen corresponding path program 1 times [2019-10-13 21:18:04,429 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:04,429 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079927829] [2019-10-13 21:18:04,430 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:04,430 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:04,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:04,671 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:18:04,671 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079927829] [2019-10-13 21:18:04,672 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:04,672 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:04,672 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625462836] [2019-10-13 21:18:04,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:04,674 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:04,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:04,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:04,675 INFO L87 Difference]: Start difference. First operand 1482 states and 2031 transitions. Second operand 3 states. [2019-10-13 21:18:04,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:04,847 INFO L93 Difference]: Finished difference Result 1485 states and 2033 transitions. [2019-10-13 21:18:04,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:04,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2019-10-13 21:18:04,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:04,857 INFO L225 Difference]: With dead ends: 1485 [2019-10-13 21:18:04,857 INFO L226 Difference]: Without dead ends: 783 [2019-10-13 21:18:04,864 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:04,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2019-10-13 21:18:04,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 783. [2019-10-13 21:18:04,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2019-10-13 21:18:04,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1052 transitions. [2019-10-13 21:18:04,913 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1052 transitions. Word has length 198 [2019-10-13 21:18:04,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:04,914 INFO L462 AbstractCegarLoop]: Abstraction has 783 states and 1052 transitions. [2019-10-13 21:18:04,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:04,914 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1052 transitions. [2019-10-13 21:18:04,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-13 21:18:04,921 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:04,922 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:04,922 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:04,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:04,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1151446893, now seen corresponding path program 1 times [2019-10-13 21:18:04,923 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:04,924 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551585799] [2019-10-13 21:18:04,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:04,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:04,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:05,197 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:18:05,198 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551585799] [2019-10-13 21:18:05,198 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:05,199 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:18:05,199 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836914870] [2019-10-13 21:18:05,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:18:05,200 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:05,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:18:05,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:18:05,201 INFO L87 Difference]: Start difference. First operand 783 states and 1052 transitions. Second operand 4 states. [2019-10-13 21:18:05,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:05,889 INFO L93 Difference]: Finished difference Result 1503 states and 2028 transitions. [2019-10-13 21:18:05,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:18:05,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 212 [2019-10-13 21:18:05,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:05,895 INFO L225 Difference]: With dead ends: 1503 [2019-10-13 21:18:05,895 INFO L226 Difference]: Without dead ends: 789 [2019-10-13 21:18:05,898 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:18:05,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2019-10-13 21:18:05,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 783. [2019-10-13 21:18:05,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2019-10-13 21:18:05,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1037 transitions. [2019-10-13 21:18:05,935 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1037 transitions. Word has length 212 [2019-10-13 21:18:05,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:05,935 INFO L462 AbstractCegarLoop]: Abstraction has 783 states and 1037 transitions. [2019-10-13 21:18:05,935 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:18:05,935 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1037 transitions. [2019-10-13 21:18:05,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-13 21:18:05,940 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:05,941 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:05,941 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:05,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:05,941 INFO L82 PathProgramCache]: Analyzing trace with hash 881915616, now seen corresponding path program 1 times [2019-10-13 21:18:05,942 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:05,942 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521433379] [2019-10-13 21:18:05,942 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:05,942 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:05,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:06,196 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 21:18:06,197 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521433379] [2019-10-13 21:18:06,197 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:06,197 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:06,197 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945381489] [2019-10-13 21:18:06,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:06,198 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:06,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:06,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:06,199 INFO L87 Difference]: Start difference. First operand 783 states and 1037 transitions. Second operand 3 states. [2019-10-13 21:18:06,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:06,240 INFO L93 Difference]: Finished difference Result 1213 states and 1589 transitions. [2019-10-13 21:18:06,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:06,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2019-10-13 21:18:06,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:06,246 INFO L225 Difference]: With dead ends: 1213 [2019-10-13 21:18:06,246 INFO L226 Difference]: Without dead ends: 786 [2019-10-13 21:18:06,247 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:06,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2019-10-13 21:18:06,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 785. [2019-10-13 21:18:06,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2019-10-13 21:18:06,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1039 transitions. [2019-10-13 21:18:06,284 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1039 transitions. Word has length 239 [2019-10-13 21:18:06,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:06,285 INFO L462 AbstractCegarLoop]: Abstraction has 785 states and 1039 transitions. [2019-10-13 21:18:06,285 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:06,286 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1039 transitions. [2019-10-13 21:18:06,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-10-13 21:18:06,290 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:06,290 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:06,291 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:06,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:06,291 INFO L82 PathProgramCache]: Analyzing trace with hash -159986652, now seen corresponding path program 1 times [2019-10-13 21:18:06,291 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:06,291 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519407748] [2019-10-13 21:18:06,292 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,292 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:06,474 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 21:18:06,475 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519407748] [2019-10-13 21:18:06,475 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:06,475 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:06,475 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149800770] [2019-10-13 21:18:06,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:06,477 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:06,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:06,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:06,478 INFO L87 Difference]: Start difference. First operand 785 states and 1039 transitions. Second operand 3 states. [2019-10-13 21:18:06,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:06,530 INFO L93 Difference]: Finished difference Result 1502 states and 2030 transitions. [2019-10-13 21:18:06,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:06,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2019-10-13 21:18:06,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:06,535 INFO L225 Difference]: With dead ends: 1502 [2019-10-13 21:18:06,536 INFO L226 Difference]: Without dead ends: 840 [2019-10-13 21:18:06,538 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:06,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2019-10-13 21:18:06,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 839. [2019-10-13 21:18:06,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 839 states. [2019-10-13 21:18:06,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1127 transitions. [2019-10-13 21:18:06,584 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1127 transitions. Word has length 247 [2019-10-13 21:18:06,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:06,585 INFO L462 AbstractCegarLoop]: Abstraction has 839 states and 1127 transitions. [2019-10-13 21:18:06,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:06,586 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1127 transitions. [2019-10-13 21:18:06,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-13 21:18:06,594 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:06,594 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:06,595 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:06,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:06,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1666613841, now seen corresponding path program 1 times [2019-10-13 21:18:06,596 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:06,596 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015766726] [2019-10-13 21:18:06,596 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,596 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:06,908 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-13 21:18:06,909 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015766726] [2019-10-13 21:18:06,909 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:06,909 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:18:06,909 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807725553] [2019-10-13 21:18:06,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:18:06,910 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:06,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:18:06,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:18:06,911 INFO L87 Difference]: Start difference. First operand 839 states and 1127 transitions. Second operand 9 states. [2019-10-13 21:18:07,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:07,197 INFO L93 Difference]: Finished difference Result 846 states and 1136 transitions. [2019-10-13 21:18:07,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:18:07,198 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 248 [2019-10-13 21:18:07,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:07,203 INFO L225 Difference]: With dead ends: 846 [2019-10-13 21:18:07,204 INFO L226 Difference]: Without dead ends: 843 [2019-10-13 21:18:07,204 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2019-10-13 21:18:07,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2019-10-13 21:18:07,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843. [2019-10-13 21:18:07,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 843 states. [2019-10-13 21:18:07,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1133 transitions. [2019-10-13 21:18:07,245 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1133 transitions. Word has length 248 [2019-10-13 21:18:07,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:07,246 INFO L462 AbstractCegarLoop]: Abstraction has 843 states and 1133 transitions. [2019-10-13 21:18:07,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:18:07,246 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1133 transitions. [2019-10-13 21:18:07,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-10-13 21:18:07,251 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:07,252 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:07,252 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:07,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:07,252 INFO L82 PathProgramCache]: Analyzing trace with hash 316090334, now seen corresponding path program 1 times [2019-10-13 21:18:07,252 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:07,253 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891912213] [2019-10-13 21:18:07,253 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:07,253 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:07,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:07,490 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-13 21:18:07,491 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891912213] [2019-10-13 21:18:07,491 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:07,491 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:18:07,491 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287196982] [2019-10-13 21:18:07,492 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:18:07,492 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:07,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:18:07,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:18:07,493 INFO L87 Difference]: Start difference. First operand 843 states and 1133 transitions. Second operand 4 states. [2019-10-13 21:18:08,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:08,624 INFO L93 Difference]: Finished difference Result 2393 states and 3294 transitions. [2019-10-13 21:18:08,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:18:08,625 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 255 [2019-10-13 21:18:08,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:08,630 INFO L225 Difference]: With dead ends: 2393 [2019-10-13 21:18:08,631 INFO L226 Difference]: Without dead ends: 838 [2019-10-13 21:18:08,636 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:18:08,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2019-10-13 21:18:08,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2019-10-13 21:18:08,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2019-10-13 21:18:08,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1117 transitions. [2019-10-13 21:18:08,677 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1117 transitions. Word has length 255 [2019-10-13 21:18:08,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:08,678 INFO L462 AbstractCegarLoop]: Abstraction has 838 states and 1117 transitions. [2019-10-13 21:18:08,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:18:08,678 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1117 transitions. [2019-10-13 21:18:08,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-13 21:18:08,683 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:08,684 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:08,684 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:08,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:08,684 INFO L82 PathProgramCache]: Analyzing trace with hash 2003629459, now seen corresponding path program 1 times [2019-10-13 21:18:08,685 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:08,685 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307045486] [2019-10-13 21:18:08,685 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:08,685 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:08,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:08,886 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-10-13 21:18:08,887 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307045486] [2019-10-13 21:18:08,887 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:08,887 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:08,888 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194435087] [2019-10-13 21:18:08,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:08,889 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:08,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:08,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:08,889 INFO L87 Difference]: Start difference. First operand 838 states and 1117 transitions. Second operand 3 states. [2019-10-13 21:18:09,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:09,030 INFO L93 Difference]: Finished difference Result 1625 states and 2191 transitions. [2019-10-13 21:18:09,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:09,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2019-10-13 21:18:09,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:09,035 INFO L225 Difference]: With dead ends: 1625 [2019-10-13 21:18:09,035 INFO L226 Difference]: Without dead ends: 837 [2019-10-13 21:18:09,043 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:09,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2019-10-13 21:18:09,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 837. [2019-10-13 21:18:09,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2019-10-13 21:18:09,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1113 transitions. [2019-10-13 21:18:09,084 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1113 transitions. Word has length 273 [2019-10-13 21:18:09,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:09,084 INFO L462 AbstractCegarLoop]: Abstraction has 837 states and 1113 transitions. [2019-10-13 21:18:09,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:09,084 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1113 transitions. [2019-10-13 21:18:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2019-10-13 21:18:09,089 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:09,090 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:09,090 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:09,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:09,091 INFO L82 PathProgramCache]: Analyzing trace with hash -953455789, now seen corresponding path program 1 times [2019-10-13 21:18:09,091 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:09,091 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131889944] [2019-10-13 21:18:09,091 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:09,091 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:09,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:09,498 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2019-10-13 21:18:09,498 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131889944] [2019-10-13 21:18:09,499 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:09,499 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-13 21:18:09,499 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424995955] [2019-10-13 21:18:09,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-13 21:18:09,500 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:09,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-13 21:18:09,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2019-10-13 21:18:09,501 INFO L87 Difference]: Start difference. First operand 837 states and 1113 transitions. Second operand 21 states. [2019-10-13 21:18:15,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:15,965 INFO L93 Difference]: Finished difference Result 2887 states and 3928 transitions. [2019-10-13 21:18:15,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-10-13 21:18:15,966 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 283 [2019-10-13 21:18:15,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:15,983 INFO L225 Difference]: With dead ends: 2887 [2019-10-13 21:18:15,983 INFO L226 Difference]: Without dead ends: 2478 [2019-10-13 21:18:15,987 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=505, Invalid=3785, Unknown=0, NotChecked=0, Total=4290 [2019-10-13 21:18:15,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2019-10-13 21:18:16,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2441. [2019-10-13 21:18:16,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2441 states. [2019-10-13 21:18:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3317 transitions. [2019-10-13 21:18:16,130 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3317 transitions. Word has length 283 [2019-10-13 21:18:16,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:16,132 INFO L462 AbstractCegarLoop]: Abstraction has 2441 states and 3317 transitions. [2019-10-13 21:18:16,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-13 21:18:16,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3317 transitions. [2019-10-13 21:18:16,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-13 21:18:16,144 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:16,144 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:16,144 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:16,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:16,145 INFO L82 PathProgramCache]: Analyzing trace with hash 782051777, now seen corresponding path program 1 times [2019-10-13 21:18:16,145 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:16,145 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992749428] [2019-10-13 21:18:16,146 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:16,146 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:16,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:16,481 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-10-13 21:18:16,481 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992749428] [2019-10-13 21:18:16,481 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:16,481 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-13 21:18:16,481 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247574263] [2019-10-13 21:18:16,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-13 21:18:16,482 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:16,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-13 21:18:16,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:18:16,483 INFO L87 Difference]: Start difference. First operand 2441 states and 3317 transitions. Second operand 17 states. [2019-10-13 21:18:17,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:17,160 INFO L93 Difference]: Finished difference Result 4280 states and 5786 transitions. [2019-10-13 21:18:17,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 21:18:17,161 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 284 [2019-10-13 21:18:17,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:17,177 INFO L225 Difference]: With dead ends: 4280 [2019-10-13 21:18:17,177 INFO L226 Difference]: Without dead ends: 2555 [2019-10-13 21:18:17,184 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2019-10-13 21:18:17,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2555 states. [2019-10-13 21:18:17,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 2555. [2019-10-13 21:18:17,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2555 states. [2019-10-13 21:18:17,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 3475 transitions. [2019-10-13 21:18:17,310 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 3475 transitions. Word has length 284 [2019-10-13 21:18:17,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:17,310 INFO L462 AbstractCegarLoop]: Abstraction has 2555 states and 3475 transitions. [2019-10-13 21:18:17,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-13 21:18:17,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 3475 transitions. [2019-10-13 21:18:17,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-13 21:18:17,321 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:17,321 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:18:17,322 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:17,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:17,322 INFO L82 PathProgramCache]: Analyzing trace with hash 491512210, now seen corresponding path program 1 times [2019-10-13 21:18:17,323 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:17,323 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764459399] [2019-10-13 21:18:17,323 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:17,323 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:17,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2019-10-13 21:18:17,813 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764459399] [2019-10-13 21:18:17,813 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:17,814 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-13 21:18:17,814 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801315394] [2019-10-13 21:18:17,815 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-13 21:18:17,816 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:17,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-13 21:18:17,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:18:17,818 INFO L87 Difference]: Start difference. First operand 2555 states and 3475 transitions. Second operand 17 states. [2019-10-13 21:18:22,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:22,178 INFO L93 Difference]: Finished difference Result 4417 states and 6017 transitions. [2019-10-13 21:18:22,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-10-13 21:18:22,178 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 284 [2019-10-13 21:18:22,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:22,196 INFO L225 Difference]: With dead ends: 4417 [2019-10-13 21:18:22,196 INFO L226 Difference]: Without dead ends: 2687 [2019-10-13 21:18:22,203 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=273, Invalid=2697, Unknown=0, NotChecked=0, Total=2970 [2019-10-13 21:18:22,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2019-10-13 21:18:22,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2650. [2019-10-13 21:18:22,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2650 states. [2019-10-13 21:18:22,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3625 transitions. [2019-10-13 21:18:22,348 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3625 transitions. Word has length 284 [2019-10-13 21:18:22,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:22,349 INFO L462 AbstractCegarLoop]: Abstraction has 2650 states and 3625 transitions. [2019-10-13 21:18:22,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-13 21:18:22,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3625 transitions. [2019-10-13 21:18:22,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-13 21:18:22,360 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:22,361 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:18:22,361 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:22,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:22,362 INFO L82 PathProgramCache]: Analyzing trace with hash 47490106, now seen corresponding path program 1 times [2019-10-13 21:18:22,362 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:22,363 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110959016] [2019-10-13 21:18:22,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:22,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:22,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:22,930 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2019-10-13 21:18:22,930 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110959016] [2019-10-13 21:18:22,930 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:22,931 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-13 21:18:22,931 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704770846] [2019-10-13 21:18:22,931 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-13 21:18:22,932 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:22,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-13 21:18:22,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2019-10-13 21:18:22,932 INFO L87 Difference]: Start difference. First operand 2650 states and 3625 transitions. Second operand 22 states. [2019-10-13 21:18:23,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:23,583 INFO L93 Difference]: Finished difference Result 4545 states and 6164 transitions. [2019-10-13 21:18:23,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-13 21:18:23,583 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 284 [2019-10-13 21:18:23,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:23,600 INFO L225 Difference]: With dead ends: 4545 [2019-10-13 21:18:23,600 INFO L226 Difference]: Without dead ends: 2697 [2019-10-13 21:18:23,607 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-10-13 21:18:23,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2019-10-13 21:18:23,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2695. [2019-10-13 21:18:23,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2695 states. [2019-10-13 21:18:23,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2695 states to 2695 states and 3672 transitions. [2019-10-13 21:18:23,738 INFO L78 Accepts]: Start accepts. Automaton has 2695 states and 3672 transitions. Word has length 284 [2019-10-13 21:18:23,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:23,739 INFO L462 AbstractCegarLoop]: Abstraction has 2695 states and 3672 transitions. [2019-10-13 21:18:23,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-13 21:18:23,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2695 states and 3672 transitions. [2019-10-13 21:18:23,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-13 21:18:23,749 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:23,750 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:23,750 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:23,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:23,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1061329622, now seen corresponding path program 1 times [2019-10-13 21:18:23,751 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:23,751 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974690698] [2019-10-13 21:18:23,752 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:23,752 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:23,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:24,012 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-10-13 21:18:24,013 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974690698] [2019-10-13 21:18:24,013 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:24,014 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:24,014 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143668238] [2019-10-13 21:18:24,015 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:24,015 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:24,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:24,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:24,016 INFO L87 Difference]: Start difference. First operand 2695 states and 3672 transitions. Second operand 5 states. [2019-10-13 21:18:25,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:25,773 INFO L93 Difference]: Finished difference Result 6823 states and 9447 transitions. [2019-10-13 21:18:25,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:18:25,778 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 284 [2019-10-13 21:18:25,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:25,811 INFO L225 Difference]: With dead ends: 6823 [2019-10-13 21:18:25,811 INFO L226 Difference]: Without dead ends: 5880 [2019-10-13 21:18:25,818 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:25,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5880 states. [2019-10-13 21:18:26,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5880 to 5862. [2019-10-13 21:18:26,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5862 states. [2019-10-13 21:18:26,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5862 states to 5862 states and 8090 transitions. [2019-10-13 21:18:26,110 INFO L78 Accepts]: Start accepts. Automaton has 5862 states and 8090 transitions. Word has length 284 [2019-10-13 21:18:26,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:26,110 INFO L462 AbstractCegarLoop]: Abstraction has 5862 states and 8090 transitions. [2019-10-13 21:18:26,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:26,111 INFO L276 IsEmpty]: Start isEmpty. Operand 5862 states and 8090 transitions. [2019-10-13 21:18:26,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-13 21:18:26,122 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:26,122 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:26,122 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:26,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:26,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1563124105, now seen corresponding path program 1 times [2019-10-13 21:18:26,123 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:26,123 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39388922] [2019-10-13 21:18:26,123 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:26,124 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:26,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:26,360 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-10-13 21:18:26,365 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39388922] [2019-10-13 21:18:26,367 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:26,367 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:18:26,367 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308767613] [2019-10-13 21:18:26,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:18:26,368 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:26,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:18:26,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:26,369 INFO L87 Difference]: Start difference. First operand 5862 states and 8090 transitions. Second operand 7 states.