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_spec1_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:13:04,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:13:04,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:13:04,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:13:04,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:13:04,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:13:04,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:13:04,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:13:04,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:13:04,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:13:04,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:13:04,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:13:04,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:13:04,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:13:04,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:13:04,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:13:04,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:13:04,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:13:04,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:13:04,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:13:04,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:13:04,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:13:04,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:13:04,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:13:04,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:13:04,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:13:04,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:13:04,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:13:04,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:13:04,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:13:04,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:13:04,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:13:04,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:13:04,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:13:04,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:13:04,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:13:04,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:13:04,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:13:04,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:13:04,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:13:04,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:13:04,430 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:13:04,451 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:13:04,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:13:04,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:13:04,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:13:04,454 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:13:04,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:13:04,454 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:13:04,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:13:04,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:13:04,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:13:04,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:13:04,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:13:04,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:13:04,457 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:13:04,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:13:04,457 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:13:04,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:13:04,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:13:04,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:13:04,458 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:13:04,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:13:04,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:13:04,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:13:04,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:13:04,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:13:04,459 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:13:04,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:13:04,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:13:04,460 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:13:04,731 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:13:04,744 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:13:04,747 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:13:04,749 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:13:04,749 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:13:04,750 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c [2019-10-15 01:13:04,817 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ab6227a2/f94fa40d2212477ab9ed23d05f35c562/FLAG6be3639a7 [2019-10-15 01:13:05,509 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:13:05,510 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c [2019-10-15 01:13:05,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ab6227a2/f94fa40d2212477ab9ed23d05f35c562/FLAG6be3639a7 [2019-10-15 01:13:05,658 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ab6227a2/f94fa40d2212477ab9ed23d05f35c562 [2019-10-15 01:13:05,669 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:13:05,670 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:13:05,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:05,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:13:05,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:13:05,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:05" (1/1) ... [2019-10-15 01:13:05,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f41ddf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:05, skipping insertion in model container [2019-10-15 01:13:05,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:05" (1/1) ... [2019-10-15 01:13:05,686 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:13:05,768 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:13:06,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:06,578 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:13:06,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:06,820 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:13:06,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06 WrapperNode [2019-10-15 01:13:06,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:06,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:13:06,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:13:06,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:13:06,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... [2019-10-15 01:13:06,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... [2019-10-15 01:13:06,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... [2019-10-15 01:13:06,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... [2019-10-15 01:13:06,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... [2019-10-15 01:13:07,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... [2019-10-15 01:13:07,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... [2019-10-15 01:13:07,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:13:07,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:13:07,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:13:07,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:13:07,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:13:07,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:13:07,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:13:07,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:07,147 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:13:07,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:13:07,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:13:07,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:13:07,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:13:07,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:13:07,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:13:07,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:13:07,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:13:07,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:13:07,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:13:07,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:13:07,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:13:07,150 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:13:07,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:13:07,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:13:07,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:13:07,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:13:07,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:13:07,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:13:07,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:13:07,153 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:13:07,153 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:13:07,153 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:13:07,153 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:13:07,154 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:13:07,154 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:13:07,154 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 01:13:07,154 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:13:07,154 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:13:07,155 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:13:07,155 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:13:07,155 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:13:07,155 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:13:07,155 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:13:07,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:13:07,156 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:13:07,156 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:13:07,156 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:13:07,156 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:13:07,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:13:07,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:13:07,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:13:07,157 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:13:07,157 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:13:07,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:13:07,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:13:07,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:13:07,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:07,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:13:07,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:07,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:13:07,159 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:13:07,159 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:13:07,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:13:07,159 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:13:07,160 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:13:07,160 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:13:07,160 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:13:07,160 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:13:07,160 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:13:07,161 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:13:07,161 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:13:07,161 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:13:07,161 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:13:07,161 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:13:07,161 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:13:07,162 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:13:07,162 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:13:07,162 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:13:07,162 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:13:07,162 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:13:07,163 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:13:07,163 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:13:07,163 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:13:07,163 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:13:07,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:13:07,164 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:13:07,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:13:07,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:13:07,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:13:07,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:13:07,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:13:07,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:13:07,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:13:07,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:13:07,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:13:07,166 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:13:07,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:13:07,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:13:07,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:13:07,166 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:13:07,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:13:07,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:13:07,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:13:07,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:13:07,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:13:07,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:07,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:07,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:07,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:07,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:13:07,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:13:07,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:13:07,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:13:07,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:13:07,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:13:07,169 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:13:07,169 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:13:07,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:13:07,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:13:07,170 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:13:07,170 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:13:07,170 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:13:07,170 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:13:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:13:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:13:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:13:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:13:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:13:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:13:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:13:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:13:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:13:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:13:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:13:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:13:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:13:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:13:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:13:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:13:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:13:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:13:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:13:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:13:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:13:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:13:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:13:07,174 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:13:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:13:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:13:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:13:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:13:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:13:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:13:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:13:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:13:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:13:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:13:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:13:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:13:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:13:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:13:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:13:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:13:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:13:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:13:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:13:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:13:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:13:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:13:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 01:13:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:13:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:13:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:13:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:13:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:13:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:13:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:13:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:13:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:13:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:13:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:13:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:13:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:13:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:13:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:13:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:13:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:13:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:13:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:13:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:13:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:13:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:13:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:13:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:13:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:13:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:13:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:13:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:13:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:13:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:13:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:13:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:13:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:13:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:13:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:13:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:13:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:13:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:13:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:13:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:13:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:13:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:13:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:13:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:13:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:13:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:13:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:13:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:13:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:13:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:13:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:13:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:13:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:13:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:13:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:13:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:13:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:13:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:13:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:13:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:13:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:13:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:13:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:13:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:13:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:13:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:13:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:13:09,538 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:13:09,538 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:13:09,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:09 BoogieIcfgContainer [2019-10-15 01:13:09,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:13:09,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:13:09,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:13:09,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:13:09,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:13:05" (1/3) ... [2019-10-15 01:13:09,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8fcd8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:09, skipping insertion in model container [2019-10-15 01:13:09,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (2/3) ... [2019-10-15 01:13:09,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8fcd8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:09, skipping insertion in model container [2019-10-15 01:13:09,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:09" (3/3) ... [2019-10-15 01:13:09,556 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product20.cil.c [2019-10-15 01:13:09,566 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:13:09,580 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:13:09,593 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:13:09,640 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:13:09,640 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:13:09,640 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:13:09,640 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:13:09,640 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:13:09,640 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:13:09,640 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:13:09,641 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:13:09,672 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states. [2019-10-15 01:13:09,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 01:13:09,694 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:09,695 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:09,697 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:09,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:09,703 INFO L82 PathProgramCache]: Analyzing trace with hash -165489832, now seen corresponding path program 1 times [2019-10-15 01:13:09,713 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:09,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404192834] [2019-10-15 01:13:09,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:09,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:09,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:10,379 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:10,380 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404192834] [2019-10-15 01:13:10,381 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:10,381 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:13:10,382 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816972520] [2019-10-15 01:13:10,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:13:10,389 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:10,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:13:10,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:10,404 INFO L87 Difference]: Start difference. First operand 559 states. Second operand 2 states. [2019-10-15 01:13:10,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:10,522 INFO L93 Difference]: Finished difference Result 756 states and 1036 transitions. [2019-10-15 01:13:10,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:13:10,523 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-15 01:13:10,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:10,551 INFO L225 Difference]: With dead ends: 756 [2019-10-15 01:13:10,552 INFO L226 Difference]: Without dead ends: 506 [2019-10-15 01:13:10,567 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:10,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2019-10-15 01:13:10,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2019-10-15 01:13:10,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2019-10-15 01:13:10,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 697 transitions. [2019-10-15 01:13:10,707 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 697 transitions. Word has length 154 [2019-10-15 01:13:10,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:10,710 INFO L462 AbstractCegarLoop]: Abstraction has 506 states and 697 transitions. [2019-10-15 01:13:10,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:13:10,710 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 697 transitions. [2019-10-15 01:13:10,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 01:13:10,715 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:10,716 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:10,716 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:10,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:10,716 INFO L82 PathProgramCache]: Analyzing trace with hash 251195075, now seen corresponding path program 1 times [2019-10-15 01:13:10,717 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:10,717 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306967943] [2019-10-15 01:13:10,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:10,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:10,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:10,935 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:10,936 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306967943] [2019-10-15 01:13:10,936 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:10,936 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:10,937 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925815646] [2019-10-15 01:13:10,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:10,946 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:10,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:10,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:10,947 INFO L87 Difference]: Start difference. First operand 506 states and 697 transitions. Second operand 3 states. [2019-10-15 01:13:11,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:11,035 INFO L93 Difference]: Finished difference Result 739 states and 1002 transitions. [2019-10-15 01:13:11,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:11,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-15 01:13:11,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:11,045 INFO L225 Difference]: With dead ends: 739 [2019-10-15 01:13:11,045 INFO L226 Difference]: Without dead ends: 509 [2019-10-15 01:13:11,048 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:11,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2019-10-15 01:13:11,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 508. [2019-10-15 01:13:11,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2019-10-15 01:13:11,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 699 transitions. [2019-10-15 01:13:11,096 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 699 transitions. Word has length 155 [2019-10-15 01:13:11,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:11,097 INFO L462 AbstractCegarLoop]: Abstraction has 508 states and 699 transitions. [2019-10-15 01:13:11,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:11,099 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 699 transitions. [2019-10-15 01:13:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:13:11,102 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:11,103 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:11,103 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:11,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:11,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1211628493, now seen corresponding path program 1 times [2019-10-15 01:13:11,104 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:11,104 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458265616] [2019-10-15 01:13:11,104 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:11,105 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:11,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:11,323 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:11,324 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458265616] [2019-10-15 01:13:11,324 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:11,324 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:11,325 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899374987] [2019-10-15 01:13:11,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:11,329 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:11,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:11,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:11,330 INFO L87 Difference]: Start difference. First operand 508 states and 699 transitions. Second operand 3 states. [2019-10-15 01:13:11,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:11,384 INFO L93 Difference]: Finished difference Result 994 states and 1399 transitions. [2019-10-15 01:13:11,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:11,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-15 01:13:11,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:11,395 INFO L225 Difference]: With dead ends: 994 [2019-10-15 01:13:11,395 INFO L226 Difference]: Without dead ends: 551 [2019-10-15 01:13:11,399 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:11,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-10-15 01:13:11,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 550. [2019-10-15 01:13:11,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2019-10-15 01:13:11,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 771 transitions. [2019-10-15 01:13:11,457 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 771 transitions. Word has length 165 [2019-10-15 01:13:11,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:11,458 INFO L462 AbstractCegarLoop]: Abstraction has 550 states and 771 transitions. [2019-10-15 01:13:11,458 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:11,458 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 771 transitions. [2019-10-15 01:13:11,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-15 01:13:11,469 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:11,470 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:11,470 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:11,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:11,471 INFO L82 PathProgramCache]: Analyzing trace with hash 964514250, now seen corresponding path program 1 times [2019-10-15 01:13:11,472 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:11,472 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514209310] [2019-10-15 01:13:11,472 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:11,473 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:11,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:11,773 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514209310] [2019-10-15 01:13:11,774 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:11,774 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:11,774 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213049257] [2019-10-15 01:13:11,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:11,775 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:11,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:11,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:11,779 INFO L87 Difference]: Start difference. First operand 550 states and 771 transitions. Second operand 3 states. [2019-10-15 01:13:11,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:11,837 INFO L93 Difference]: Finished difference Result 1117 states and 1610 transitions. [2019-10-15 01:13:11,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:11,838 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-10-15 01:13:11,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:11,845 INFO L225 Difference]: With dead ends: 1117 [2019-10-15 01:13:11,845 INFO L226 Difference]: Without dead ends: 632 [2019-10-15 01:13:11,847 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:11,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2019-10-15 01:13:11,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 631. [2019-10-15 01:13:11,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-10-15 01:13:11,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 909 transitions. [2019-10-15 01:13:11,884 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 909 transitions. Word has length 166 [2019-10-15 01:13:11,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:11,885 INFO L462 AbstractCegarLoop]: Abstraction has 631 states and 909 transitions. [2019-10-15 01:13:11,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:11,885 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 909 transitions. [2019-10-15 01:13:11,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-15 01:13:11,891 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:11,891 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:11,891 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:11,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:11,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1255605427, now seen corresponding path program 1 times [2019-10-15 01:13:11,892 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:11,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447751073] [2019-10-15 01:13:11,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:11,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:11,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:12,159 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:12,160 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447751073] [2019-10-15 01:13:12,160 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:12,160 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:12,160 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954652621] [2019-10-15 01:13:12,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:12,164 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:12,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:12,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:12,165 INFO L87 Difference]: Start difference. First operand 631 states and 909 transitions. Second operand 3 states. [2019-10-15 01:13:12,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:12,237 INFO L93 Difference]: Finished difference Result 1354 states and 2014 transitions. [2019-10-15 01:13:12,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:12,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2019-10-15 01:13:12,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:12,250 INFO L225 Difference]: With dead ends: 1354 [2019-10-15 01:13:12,250 INFO L226 Difference]: Without dead ends: 788 [2019-10-15 01:13:12,252 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:12,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-10-15 01:13:12,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 787. [2019-10-15 01:13:12,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-10-15 01:13:12,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1173 transitions. [2019-10-15 01:13:12,304 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1173 transitions. Word has length 167 [2019-10-15 01:13:12,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:12,306 INFO L462 AbstractCegarLoop]: Abstraction has 787 states and 1173 transitions. [2019-10-15 01:13:12,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:12,306 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1173 transitions. [2019-10-15 01:13:12,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-15 01:13:12,313 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:12,313 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:12,313 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:12,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:12,314 INFO L82 PathProgramCache]: Analyzing trace with hash 631123274, now seen corresponding path program 1 times [2019-10-15 01:13:12,314 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:12,315 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204233944] [2019-10-15 01:13:12,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:12,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:12,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:12,517 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:12,518 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204233944] [2019-10-15 01:13:12,519 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:12,519 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:12,519 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683855648] [2019-10-15 01:13:12,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:12,520 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:12,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:12,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:12,521 INFO L87 Difference]: Start difference. First operand 787 states and 1173 transitions. Second operand 3 states. [2019-10-15 01:13:12,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:12,584 INFO L93 Difference]: Finished difference Result 1810 states and 2786 transitions. [2019-10-15 01:13:12,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:12,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-10-15 01:13:12,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:12,594 INFO L225 Difference]: With dead ends: 1810 [2019-10-15 01:13:12,594 INFO L226 Difference]: Without dead ends: 1088 [2019-10-15 01:13:12,597 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:12,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2019-10-15 01:13:12,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1087. [2019-10-15 01:13:12,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1087 states. [2019-10-15 01:13:12,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1677 transitions. [2019-10-15 01:13:12,712 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1677 transitions. Word has length 168 [2019-10-15 01:13:12,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:12,713 INFO L462 AbstractCegarLoop]: Abstraction has 1087 states and 1677 transitions. [2019-10-15 01:13:12,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:12,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1677 transitions. [2019-10-15 01:13:12,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-15 01:13:12,719 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:12,720 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:12,720 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:12,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:12,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1431519593, now seen corresponding path program 1 times [2019-10-15 01:13:12,721 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:12,721 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277611145] [2019-10-15 01:13:12,721 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:12,721 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:12,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:13,775 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-15 01:13:13,776 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277611145] [2019-10-15 01:13:13,776 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:13,776 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2019-10-15 01:13:13,776 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019896418] [2019-10-15 01:13:13,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-10-15 01:13:13,777 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:13,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-10-15 01:13:13,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1105, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:13:13,779 INFO L87 Difference]: Start difference. First operand 1087 states and 1677 transitions. Second operand 35 states. [2019-10-15 01:13:20,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:20,584 INFO L93 Difference]: Finished difference Result 3203 states and 5062 transitions. [2019-10-15 01:13:20,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-15 01:13:20,585 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 171 [2019-10-15 01:13:20,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:20,600 INFO L225 Difference]: With dead ends: 3203 [2019-10-15 01:13:20,600 INFO L226 Difference]: Without dead ends: 2148 [2019-10-15 01:13:20,606 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=298, Invalid=4124, Unknown=0, NotChecked=0, Total=4422 [2019-10-15 01:13:20,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2019-10-15 01:13:20,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1893. [2019-10-15 01:13:20,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1893 states. [2019-10-15 01:13:20,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 3064 transitions. [2019-10-15 01:13:20,744 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 3064 transitions. Word has length 171 [2019-10-15 01:13:20,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:20,745 INFO L462 AbstractCegarLoop]: Abstraction has 1893 states and 3064 transitions. [2019-10-15 01:13:20,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-10-15 01:13:20,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 3064 transitions. [2019-10-15 01:13:20,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-15 01:13:20,755 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:20,756 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-15 01:13:20,756 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:20,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:20,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1767965097, now seen corresponding path program 1 times [2019-10-15 01:13:20,757 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:20,757 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968107469] [2019-10-15 01:13:20,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:20,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:20,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:20,926 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:20,927 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968107469] [2019-10-15 01:13:20,927 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:20,927 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:20,927 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101067460] [2019-10-15 01:13:20,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:20,928 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:20,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:20,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:20,929 INFO L87 Difference]: Start difference. First operand 1893 states and 3064 transitions. Second operand 3 states. [2019-10-15 01:13:21,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:21,096 INFO L93 Difference]: Finished difference Result 4860 states and 8038 transitions. [2019-10-15 01:13:21,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:21,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-10-15 01:13:21,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:21,116 INFO L225 Difference]: With dead ends: 4860 [2019-10-15 01:13:21,117 INFO L226 Difference]: Without dead ends: 3046 [2019-10-15 01:13:21,125 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:21,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2019-10-15 01:13:21,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 3045. [2019-10-15 01:13:21,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3045 states. [2019-10-15 01:13:21,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 5032 transitions. [2019-10-15 01:13:21,330 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 5032 transitions. Word has length 170 [2019-10-15 01:13:21,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:21,331 INFO L462 AbstractCegarLoop]: Abstraction has 3045 states and 5032 transitions. [2019-10-15 01:13:21,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:21,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 5032 transitions. [2019-10-15 01:13:21,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-15 01:13:21,357 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:21,358 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-15 01:13:21,358 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:21,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:21,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1753128692, now seen corresponding path program 1 times [2019-10-15 01:13:21,359 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:21,360 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923622907] [2019-10-15 01:13:21,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:21,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:21,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:22,107 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:13:22,107 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923622907] [2019-10-15 01:13:22,107 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628508802] [2019-10-15 01:13:22,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:22,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 2683 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:13:22,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:13:22,989 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:13:22,989 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:13:23,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:23,450 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:23,513 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:23,513 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:13:23,514 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [31, 7] total 39 [2019-10-15 01:13:23,514 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648118065] [2019-10-15 01:13:23,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:13:23,515 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:23,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:13:23,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2019-10-15 01:13:23,517 INFO L87 Difference]: Start difference. First operand 3045 states and 5032 transitions. Second operand 7 states. [2019-10-15 01:13:25,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:25,003 INFO L93 Difference]: Finished difference Result 6043 states and 10045 transitions. [2019-10-15 01:13:25,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:25,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2019-10-15 01:13:25,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:25,028 INFO L225 Difference]: With dead ends: 6043 [2019-10-15 01:13:25,028 INFO L226 Difference]: Without dead ends: 3049 [2019-10-15 01:13:25,050 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 339 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-15 01:13:25,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2019-10-15 01:13:25,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 3049. [2019-10-15 01:13:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3049 states. [2019-10-15 01:13:25,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 5037 transitions. [2019-10-15 01:13:25,200 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 5037 transitions. Word has length 173 [2019-10-15 01:13:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:25,201 INFO L462 AbstractCegarLoop]: Abstraction has 3049 states and 5037 transitions. [2019-10-15 01:13:25,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:13:25,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 5037 transitions. [2019-10-15 01:13:25,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-15 01:13:25,217 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:25,217 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:25,424 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:25,424 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:25,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:25,427 INFO L82 PathProgramCache]: Analyzing trace with hash 109986769, now seen corresponding path program 1 times [2019-10-15 01:13:25,427 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:25,427 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370019985] [2019-10-15 01:13:25,428 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:25,428 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:25,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:26,116 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:26,116 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370019985] [2019-10-15 01:13:26,116 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:26,117 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 01:13:26,117 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316880078] [2019-10-15 01:13:26,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 01:13:26,118 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:26,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 01:13:26,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:13:26,119 INFO L87 Difference]: Start difference. First operand 3049 states and 5037 transitions. Second operand 26 states. [2019-10-15 01:13:34,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:34,878 INFO L93 Difference]: Finished difference Result 6996 states and 11291 transitions. [2019-10-15 01:13:34,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-10-15 01:13:34,879 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 174 [2019-10-15 01:13:34,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:34,921 INFO L225 Difference]: With dead ends: 6996 [2019-10-15 01:13:34,921 INFO L226 Difference]: Without dead ends: 6775 [2019-10-15 01:13:34,926 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1464 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=724, Invalid=5596, Unknown=0, NotChecked=0, Total=6320 [2019-10-15 01:13:34,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6775 states. [2019-10-15 01:13:35,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6775 to 6274. [2019-10-15 01:13:35,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6274 states. [2019-10-15 01:13:35,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6274 states to 6274 states and 10337 transitions. [2019-10-15 01:13:35,235 INFO L78 Accepts]: Start accepts. Automaton has 6274 states and 10337 transitions. Word has length 174 [2019-10-15 01:13:35,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:35,236 INFO L462 AbstractCegarLoop]: Abstraction has 6274 states and 10337 transitions. [2019-10-15 01:13:35,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 01:13:35,236 INFO L276 IsEmpty]: Start isEmpty. Operand 6274 states and 10337 transitions. [2019-10-15 01:13:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-15 01:13:35,265 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:35,265 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:35,266 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:35,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:35,266 INFO L82 PathProgramCache]: Analyzing trace with hash 200900853, now seen corresponding path program 2 times [2019-10-15 01:13:35,266 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:35,266 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511521625] [2019-10-15 01:13:35,267 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:35,267 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:35,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:35,891 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 01:13:35,892 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511521625] [2019-10-15 01:13:35,892 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:35,892 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-15 01:13:35,893 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395659488] [2019-10-15 01:13:35,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 01:13:35,894 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:35,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 01:13:35,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2019-10-15 01:13:35,895 INFO L87 Difference]: Start difference. First operand 6274 states and 10337 transitions. Second operand 24 states.