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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:14:13,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:14:13,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:14:13,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:14:13,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:14:13,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:14:13,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:14:13,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:14:13,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:14:13,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:14:13,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:14:13,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:14:13,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:14:13,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:14:13,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:14:13,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:14:13,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:14:13,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:14:13,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:14:13,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:14:13,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:14:13,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:14:13,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:14:13,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:14:13,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:14:13,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:14:13,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:14:13,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:14:13,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:14:13,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:14:13,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:14:13,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:14:13,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:14:13,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:14:13,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:14:13,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:14:13,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:14:13,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:14:13,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:14:13,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:14:13,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:14:13,731 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:14:13,750 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:14:13,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:14:13,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:14:13,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:14:13,753 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:14:13,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:14:13,754 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:14:13,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:14:13,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:14:13,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:14:13,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:14:13,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:14:13,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:14:13,756 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:14:13,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:14:13,757 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:14:13,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:14:13,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:14:13,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:14:13,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:14:13,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:14:13,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:14:13,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:14:13,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:14:13,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:14:13,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:14:13,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:14:13,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:14:13,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:14:14,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:14:14,073 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:14:14,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:14:14,079 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:14:14,079 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:14:14,080 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product31.cil.c [2019-10-13 21:14:14,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da57b1125/8c8c915cfbb44dabacb4f374d80ec1d6/FLAGbd8a2e10b [2019-10-13 21:14:14,875 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:14:14,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product31.cil.c [2019-10-13 21:14:14,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da57b1125/8c8c915cfbb44dabacb4f374d80ec1d6/FLAGbd8a2e10b [2019-10-13 21:14:15,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da57b1125/8c8c915cfbb44dabacb4f374d80ec1d6 [2019-10-13 21:14:15,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:14:15,030 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:14:15,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:14:15,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:14:15,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:14:15,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:14:15" (1/1) ... [2019-10-13 21:14:15,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@362dc79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:15, skipping insertion in model container [2019-10-13 21:14:15,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:14:15" (1/1) ... [2019-10-13 21:14:15,049 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:14:15,138 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:14:15,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:14:15,986 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:14:16,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:14:16,204 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:14:16,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:16 WrapperNode [2019-10-13 21:14:16,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:14:16,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:14:16,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:14:16,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:14:16,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:16" (1/1) ... [2019-10-13 21:14:16,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:16" (1/1) ... [2019-10-13 21:14:16,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:16" (1/1) ... [2019-10-13 21:14:16,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:16" (1/1) ... [2019-10-13 21:14:16,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:16" (1/1) ... [2019-10-13 21:14:16,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:16" (1/1) ... [2019-10-13 21:14:16,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:16" (1/1) ... [2019-10-13 21:14:16,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:14:16,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:14:16,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:14:16,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:14:16,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:14:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:14:16,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:14:16,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:14:16,504 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:14:16,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 21:14:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:14:16,506 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:14:16,506 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:14:16,506 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:14:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:14:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:14:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:14:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:14:16,509 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:14:16,509 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:14:16,509 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:14:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:14:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:14:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:14:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:14:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:14:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:14:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:14:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:14:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:14:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:14:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:14:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:14:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:14:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:14:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:14:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:14:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-13 21:14:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 21:14:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:14:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:14:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:14:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:14:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:14:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:14:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:14:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:14:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:14:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:14:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:14:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:14:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:14:16,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:14:16,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:14:16,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:14:16,522 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:14:16,522 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:14:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:14:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:14:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:14:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:14:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:14:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:14:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:14:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:14:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:14:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:14:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:14:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:14:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:14:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:14:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:14:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:14:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:14:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:14:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:14:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:14:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:14:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:14:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:14:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:14:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:14:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:14:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:14:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:14:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:14:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:14:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:14:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:14:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:14:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:14:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:14:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:14:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:14:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:14:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:14:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:14:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:14:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:14:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:14:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:14:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:14:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:14:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:14:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:14:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:14:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:14:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:14:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:14:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:14:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:14:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:14:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:14:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:14:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:14:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:14:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:14:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:14:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:14:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:14:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:14:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:14:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:14:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:14:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:14:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:14:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:14:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:14:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 21:14:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:14:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:14:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:14:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:14:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:14:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:14:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:14:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:14:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:14:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:14:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:14:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:14:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:14:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:14:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:14:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:14:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:14:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:14:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:14:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:14:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:14:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:14:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:14:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:14:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:14:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:14:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:14:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:14:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:14:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:14:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:14:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:14:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:14:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:14:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:14:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:14:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:14:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:14:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:14:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:14:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:14:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:14:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:14:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:14:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:14:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:14:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:14:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:14:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:14:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:14:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:14:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:14:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:14:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:14:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:14:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:14:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:14:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:14:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:14:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:14:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:14:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-13 21:14:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 21:14:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:14:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:14:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:14:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:14:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:14:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:14:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:14:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:14:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:14:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:14:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:14:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:14:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:14:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:14:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:14:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:14:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:14:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:14:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:14:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:14:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:14:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:14:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:14:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:14:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:14:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:14:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:14:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:14:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:14:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:14:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:14:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:14:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:14:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:14:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:14:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:14:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:14:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:14:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:14:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:14:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:14:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:14:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:14:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:14:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:14:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:14:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:14:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:14:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:14:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:14:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:14:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:14:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:14:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:14:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:14:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:14:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:14:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:14:18,774 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:14:18,775 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:14:18,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:14:18 BoogieIcfgContainer [2019-10-13 21:14:18,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:14:18,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:14:18,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:14:18,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:14:18,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:14:15" (1/3) ... [2019-10-13 21:14:18,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5200fb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:14:18, skipping insertion in model container [2019-10-13 21:14:18,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:16" (2/3) ... [2019-10-13 21:14:18,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5200fb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:14:18, skipping insertion in model container [2019-10-13 21:14:18,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:14:18" (3/3) ... [2019-10-13 21:14:18,786 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product31.cil.c [2019-10-13 21:14:18,796 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:14:18,807 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:14:18,819 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:14:18,852 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:14:18,853 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:14:18,854 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:14:18,858 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:14:18,858 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:14:18,858 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:14:18,858 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:14:18,858 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:14:18,903 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states. [2019-10-13 21:14:18,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-13 21:14:18,936 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:18,939 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, 1, 1, 1] [2019-10-13 21:14:18,944 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:18,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:18,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1912188797, now seen corresponding path program 1 times [2019-10-13 21:14:18,962 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:18,962 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640898900] [2019-10-13 21:14:18,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:18,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:18,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:19,639 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:19,640 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640898900] [2019-10-13 21:14:19,641 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:19,641 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:14:19,642 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775652141] [2019-10-13 21:14:19,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:14:19,650 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:19,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:14:19,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:14:19,668 INFO L87 Difference]: Start difference. First operand 558 states. Second operand 2 states. [2019-10-13 21:14:19,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:19,748 INFO L93 Difference]: Finished difference Result 858 states and 1126 transitions. [2019-10-13 21:14:19,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:14:19,750 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 158 [2019-10-13 21:14:19,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:19,772 INFO L225 Difference]: With dead ends: 858 [2019-10-13 21:14:19,772 INFO L226 Difference]: Without dead ends: 535 [2019-10-13 21:14:19,780 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 [2019-10-13 21:14:19,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2019-10-13 21:14:19,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2019-10-13 21:14:19,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2019-10-13 21:14:19,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 707 transitions. [2019-10-13 21:14:19,874 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 707 transitions. Word has length 158 [2019-10-13 21:14:19,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:19,877 INFO L462 AbstractCegarLoop]: Abstraction has 535 states and 707 transitions. [2019-10-13 21:14:19,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:14:19,877 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 707 transitions. [2019-10-13 21:14:19,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-13 21:14:19,881 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:19,882 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, 1, 1, 1, 1] [2019-10-13 21:14:19,882 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:19,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:19,882 INFO L82 PathProgramCache]: Analyzing trace with hash 692839449, now seen corresponding path program 1 times [2019-10-13 21:14:19,883 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:19,883 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307947287] [2019-10-13 21:14:19,883 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:19,883 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:19,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:20,081 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:20,081 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307947287] [2019-10-13 21:14:20,082 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:20,082 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:20,082 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254087628] [2019-10-13 21:14:20,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:20,087 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:20,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:20,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:20,087 INFO L87 Difference]: Start difference. First operand 535 states and 707 transitions. Second operand 3 states. [2019-10-13 21:14:20,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:20,180 INFO L93 Difference]: Finished difference Result 841 states and 1094 transitions. [2019-10-13 21:14:20,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:20,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-13 21:14:20,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:20,190 INFO L225 Difference]: With dead ends: 841 [2019-10-13 21:14:20,190 INFO L226 Difference]: Without dead ends: 538 [2019-10-13 21:14:20,193 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:20,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-10-13 21:14:20,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 537. [2019-10-13 21:14:20,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-10-13 21:14:20,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 709 transitions. [2019-10-13 21:14:20,227 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 709 transitions. Word has length 159 [2019-10-13 21:14:20,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:20,228 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 709 transitions. [2019-10-13 21:14:20,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:20,228 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 709 transitions. [2019-10-13 21:14:20,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 21:14:20,232 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:20,235 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] [2019-10-13 21:14:20,235 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:20,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:20,236 INFO L82 PathProgramCache]: Analyzing trace with hash 62059661, now seen corresponding path program 1 times [2019-10-13 21:14:20,236 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:20,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638389519] [2019-10-13 21:14:20,236 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:20,237 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:20,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:20,503 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:20,504 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638389519] [2019-10-13 21:14:20,504 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:20,504 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:20,504 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830273810] [2019-10-13 21:14:20,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:20,509 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:20,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:20,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:20,510 INFO L87 Difference]: Start difference. First operand 537 states and 709 transitions. Second operand 3 states. [2019-10-13 21:14:20,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:20,562 INFO L93 Difference]: Finished difference Result 1050 states and 1416 transitions. [2019-10-13 21:14:20,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:20,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-13 21:14:20,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:20,571 INFO L225 Difference]: With dead ends: 1050 [2019-10-13 21:14:20,571 INFO L226 Difference]: Without dead ends: 578 [2019-10-13 21:14:20,574 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:20,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2019-10-13 21:14:20,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 577. [2019-10-13 21:14:20,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-10-13 21:14:20,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 778 transitions. [2019-10-13 21:14:20,616 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 778 transitions. Word has length 165 [2019-10-13 21:14:20,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:20,617 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 778 transitions. [2019-10-13 21:14:20,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:20,618 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 778 transitions. [2019-10-13 21:14:20,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-13 21:14:20,624 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:20,626 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] [2019-10-13 21:14:20,626 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:20,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:20,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1057997395, now seen corresponding path program 1 times [2019-10-13 21:14:20,627 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:20,627 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274146960] [2019-10-13 21:14:20,628 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:20,628 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:20,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:22,034 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 21:14:22,034 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274146960] [2019-10-13 21:14:22,035 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:22,035 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2019-10-13 21:14:22,035 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399413999] [2019-10-13 21:14:22,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-10-13 21:14:22,037 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:22,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-10-13 21:14:22,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1400, Unknown=0, NotChecked=0, Total=1482 [2019-10-13 21:14:22,039 INFO L87 Difference]: Start difference. First operand 577 states and 778 transitions. Second operand 39 states.