java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec9_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:13:20,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:13:20,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:13:20,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:13:20,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:13:20,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:13:20,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:13:20,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:13:20,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:13:20,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:13:20,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:13:20,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:13:20,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:13:20,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:13:20,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:13:21,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:13:21,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:13:21,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:13:21,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:13:21,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:13:21,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:13:21,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:13:21,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:13:21,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:13:21,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:13:21,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:13:21,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:13:21,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:13:21,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:13:21,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:13:21,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:13:21,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:13:21,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:13:21,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:13:21,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:13:21,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:13:21,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:13:21,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:13:21,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:13:21,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:13:21,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:13:21,034 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 23:13:21,057 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:13:21,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:13:21,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:13:21,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:13:21,060 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:13:21,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:13:21,060 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:13:21,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:13:21,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:13:21,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:13:21,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:13:21,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:13:21,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:13:21,063 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:13:21,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:13:21,063 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:13:21,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:13:21,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:13:21,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:13:21,064 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:13:21,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:13:21,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:13:21,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:13:21,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:13:21,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:13:21,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:13:21,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:13:21,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:13:21,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:13:21,345 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:13:21,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:13:21,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:13:21,364 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:13:21,364 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:13:21,365 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product16.cil.c [2019-10-13 23:13:21,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f3ef5ed/26451c267d2e479cad2dc33d4ea3719d/FLAG280595053 [2019-10-13 23:13:22,178 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:13:22,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product16.cil.c [2019-10-13 23:13:22,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f3ef5ed/26451c267d2e479cad2dc33d4ea3719d/FLAG280595053 [2019-10-13 23:13:22,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f3ef5ed/26451c267d2e479cad2dc33d4ea3719d [2019-10-13 23:13:22,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:13:22,376 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:13:22,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:13:22,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:13:22,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:13:22,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:13:22" (1/1) ... [2019-10-13 23:13:22,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee255a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:22, skipping insertion in model container [2019-10-13 23:13:22,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:13:22" (1/1) ... [2019-10-13 23:13:22,395 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:13:22,457 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:13:23,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:13:23,180 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:13:23,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:13:23,395 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:13:23,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:23 WrapperNode [2019-10-13 23:13:23,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:13:23,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:13:23,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:13:23,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:13:23,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:23" (1/1) ... [2019-10-13 23:13:23,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:23" (1/1) ... [2019-10-13 23:13:23,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:23" (1/1) ... [2019-10-13 23:13:23,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:23" (1/1) ... [2019-10-13 23:13:23,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:23" (1/1) ... [2019-10-13 23:13:23,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:23" (1/1) ... [2019-10-13 23:13:23,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:23" (1/1) ... [2019-10-13 23:13:23,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:13:23,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:13:23,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:13:23,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:13:23,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:23" (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 23:13:23,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:13:23,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:13:23,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:13:23,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 23:13:23,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 23:13:23,698 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:13:23,699 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:13:23,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:13:23,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:13:23,700 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:13:23,700 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:13:23,701 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:13:23,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:13:23,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:13:23,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:13:23,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:13:23,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:13:23,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:13:23,705 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:13:23,705 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:13:23,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:13:23,706 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:13:23,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:13:23,707 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:13:23,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:13:23,707 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:13:23,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:13:23,708 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:13:23,708 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:13:23,708 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:13:23,708 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:13:23,708 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:13:23,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:13:23,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:13:23,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:13:23,709 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:13:23,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:13:23,710 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:13:23,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:13:23,710 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:13:23,710 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:13:23,710 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:13:23,710 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:13:23,711 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:13:23,711 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:13:23,711 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:13:23,711 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:13:23,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:13:23,712 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:13:23,712 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:13:23,712 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:13:23,712 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:13:23,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:13:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:13:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:13:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:13:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:13:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:13:23,714 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:13:23,714 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:13:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:13:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:13:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:13:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:13:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:13:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:13:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:13:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:13:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:13:23,717 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:13:23,717 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:13:23,717 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:13:23,717 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:13:23,718 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:13:23,718 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:13:23,718 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:13:23,719 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:13:23,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:13:23,719 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:13:23,720 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:13:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:13:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:13:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:13:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:13:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:13:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:13:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:13:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:13:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:13:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:13:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:13:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:13:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:13:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:13:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:13:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:13:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:13:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:13:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:13:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:13:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:13:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:13:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:13:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:13:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:13:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:13:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:13:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:13:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:13:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:13:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:13:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:13:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:13:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:13:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:13:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:13:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 23:13:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:13:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 23:13:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:13:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:13:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:13:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:13:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:13:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:13:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:13:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:13:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:13:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:13:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:13:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:13:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:13:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:13:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:13:23,739 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:13:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:13:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:13:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:13:23,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:13:23,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:13:23,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:13:23,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:13:23,742 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:13:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:13:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:13:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:13:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:13:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:13:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:13:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:13:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:13:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:13:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:13:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:13:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:13:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:13:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:13:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:13:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:13:23,754 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:13:23,754 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:13:23,754 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:13:23,754 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:13:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:13:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:13:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:13:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:13:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:13:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:13:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:13:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:13:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:13:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:13:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:13:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:13:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:13:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:13:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:13:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:13:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:13:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:13:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:13:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:13:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:13:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:13:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:13:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:13:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:13:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:13:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:13:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:13:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:13:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:13:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:13:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:13:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:13:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:13:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:13:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:13:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:13:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:13:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:13:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:13:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:13:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:13:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:13:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:13:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:13:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:13:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:13:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:13:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:13:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:13:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:13:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:13:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:13:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:13:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:13:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:13:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:13:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:13:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:13:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:13:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:13:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:13:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:13:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:13:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:13:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:13:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:13:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:13:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:13:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:13:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:13:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:13:28,481 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:13:28,482 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:13:28,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:28 BoogieIcfgContainer [2019-10-13 23:13:28,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:13:28,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:13:28,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:13:28,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:13:28,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:13:22" (1/3) ... [2019-10-13 23:13:28,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f434fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:28, skipping insertion in model container [2019-10-13 23:13:28,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:23" (2/3) ... [2019-10-13 23:13:28,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f434fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:28, skipping insertion in model container [2019-10-13 23:13:28,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:28" (3/3) ... [2019-10-13 23:13:28,492 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product16.cil.c [2019-10-13 23:13:28,503 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:13:28,514 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:13:28,526 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:13:28,557 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:13:28,557 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:13:28,557 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:13:28,558 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:13:28,558 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:13:28,558 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:13:28,558 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:13:28,558 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:13:28,597 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2019-10-13 23:13:28,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 23:13:28,629 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:28,632 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:28,639 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:28,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:28,645 INFO L82 PathProgramCache]: Analyzing trace with hash 773605276, now seen corresponding path program 1 times [2019-10-13 23:13:28,656 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:28,656 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78318342] [2019-10-13 23:13:28,657 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:28,657 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:28,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:29,420 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:29,421 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78318342] [2019-10-13 23:13:29,422 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:29,422 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:13:29,423 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036115245] [2019-10-13 23:13:29,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:13:29,431 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:29,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:13:29,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:13:29,449 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 2 states. [2019-10-13 23:13:29,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:29,513 INFO L93 Difference]: Finished difference Result 510 states and 601 transitions. [2019-10-13 23:13:29,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:13:29,514 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-13 23:13:29,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:29,543 INFO L225 Difference]: With dead ends: 510 [2019-10-13 23:13:29,543 INFO L226 Difference]: Without dead ends: 330 [2019-10-13 23:13:29,549 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 23:13:29,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-10-13 23:13:29,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2019-10-13 23:13:29,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-10-13 23:13:29,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 389 transitions. [2019-10-13 23:13:29,633 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 389 transitions. Word has length 114 [2019-10-13 23:13:29,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:29,635 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 389 transitions. [2019-10-13 23:13:29,635 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:13:29,636 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 389 transitions. [2019-10-13 23:13:29,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-13 23:13:29,643 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:29,643 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:29,644 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:29,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:29,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1260048779, now seen corresponding path program 1 times [2019-10-13 23:13:29,646 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:29,646 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008967146] [2019-10-13 23:13:29,646 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:29,646 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:29,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:29,910 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:29,910 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008967146] [2019-10-13 23:13:29,911 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:29,911 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:29,911 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464433266] [2019-10-13 23:13:29,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:29,914 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:29,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:29,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:29,914 INFO L87 Difference]: Start difference. First operand 330 states and 389 transitions. Second operand 3 states. [2019-10-13 23:13:29,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:29,956 INFO L93 Difference]: Finished difference Result 495 states and 573 transitions. [2019-10-13 23:13:29,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:29,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-13 23:13:29,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:29,962 INFO L225 Difference]: With dead ends: 495 [2019-10-13 23:13:29,962 INFO L226 Difference]: Without dead ends: 332 [2019-10-13 23:13:29,965 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 23:13:29,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2019-10-13 23:13:29,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2019-10-13 23:13:29,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2019-10-13 23:13:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 391 transitions. [2019-10-13 23:13:29,996 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 391 transitions. Word has length 115 [2019-10-13 23:13:29,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:29,997 INFO L462 AbstractCegarLoop]: Abstraction has 332 states and 391 transitions. [2019-10-13 23:13:29,997 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:29,997 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 391 transitions. [2019-10-13 23:13:30,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-13 23:13:30,001 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:30,001 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:30,001 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:30,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:30,002 INFO L82 PathProgramCache]: Analyzing trace with hash -599954487, now seen corresponding path program 1 times [2019-10-13 23:13:30,002 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:30,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629884321] [2019-10-13 23:13:30,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:30,004 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:30,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:30,147 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:30,148 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629884321] [2019-10-13 23:13:30,148 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:30,148 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:30,148 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680904487] [2019-10-13 23:13:30,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:30,149 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:30,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:30,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:30,150 INFO L87 Difference]: Start difference. First operand 332 states and 391 transitions. Second operand 3 states. [2019-10-13 23:13:30,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:30,199 INFO L93 Difference]: Finished difference Result 646 states and 789 transitions. [2019-10-13 23:13:30,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:30,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-10-13 23:13:30,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:30,212 INFO L225 Difference]: With dead ends: 646 [2019-10-13 23:13:30,213 INFO L226 Difference]: Without dead ends: 372 [2019-10-13 23:13:30,219 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 23:13:30,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2019-10-13 23:13:30,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2019-10-13 23:13:30,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2019-10-13 23:13:30,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 459 transitions. [2019-10-13 23:13:30,265 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 459 transitions. Word has length 120 [2019-10-13 23:13:30,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:30,267 INFO L462 AbstractCegarLoop]: Abstraction has 371 states and 459 transitions. [2019-10-13 23:13:30,267 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:30,267 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 459 transitions. [2019-10-13 23:13:30,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-13 23:13:30,271 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:30,272 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:30,272 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:30,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:30,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1404061938, now seen corresponding path program 1 times [2019-10-13 23:13:30,273 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:30,273 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92327619] [2019-10-13 23:13:30,273 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:30,274 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:30,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:30,589 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:13:30,589 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92327619] [2019-10-13 23:13:30,590 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:30,590 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:30,590 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208633243] [2019-10-13 23:13:30,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:30,592 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:30,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:30,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:30,593 INFO L87 Difference]: Start difference. First operand 371 states and 459 transitions. Second operand 3 states. [2019-10-13 23:13:30,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:30,668 INFO L93 Difference]: Finished difference Result 567 states and 681 transitions. [2019-10-13 23:13:30,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:30,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-10-13 23:13:30,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:30,678 INFO L225 Difference]: With dead ends: 567 [2019-10-13 23:13:30,679 INFO L226 Difference]: Without dead ends: 405 [2019-10-13 23:13:30,681 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 23:13:30,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2019-10-13 23:13:30,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2019-10-13 23:13:30,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-13 23:13:30,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 491 transitions. [2019-10-13 23:13:30,728 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 491 transitions. Word has length 121 [2019-10-13 23:13:30,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:30,731 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 491 transitions. [2019-10-13 23:13:30,731 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:30,732 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 491 transitions. [2019-10-13 23:13:30,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-13 23:13:30,740 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:30,740 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:13:30,740 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:30,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:30,741 INFO L82 PathProgramCache]: Analyzing trace with hash 903210349, now seen corresponding path program 1 times [2019-10-13 23:13:30,741 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:30,742 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678388508] [2019-10-13 23:13:30,742 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:30,743 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:30,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:31,166 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:13:31,166 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678388508] [2019-10-13 23:13:31,167 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:31,167 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 23:13:31,167 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278966479] [2019-10-13 23:13:31,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:13:31,168 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:31,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:13:31,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:13:31,169 INFO L87 Difference]: Start difference. First operand 405 states and 491 transitions. Second operand 11 states. [2019-10-13 23:13:33,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:33,765 INFO L93 Difference]: Finished difference Result 481 states and 562 transitions. [2019-10-13 23:13:33,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:13:33,766 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-10-13 23:13:33,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:33,771 INFO L225 Difference]: With dead ends: 481 [2019-10-13 23:13:33,771 INFO L226 Difference]: Without dead ends: 413 [2019-10-13 23:13:33,772 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:13:33,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-13 23:13:33,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2019-10-13 23:13:33,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-10-13 23:13:33,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 493 transitions. [2019-10-13 23:13:33,797 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 493 transitions. Word has length 206 [2019-10-13 23:13:33,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:33,798 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 493 transitions. [2019-10-13 23:13:33,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:13:33,798 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 493 transitions. [2019-10-13 23:13:33,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-10-13 23:13:33,803 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:33,803 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:13:33,803 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:33,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:33,804 INFO L82 PathProgramCache]: Analyzing trace with hash -531671626, now seen corresponding path program 1 times [2019-10-13 23:13:33,804 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:33,804 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695160248] [2019-10-13 23:13:33,804 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:33,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:33,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:34,464 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-10-13 23:13:34,465 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695160248] [2019-10-13 23:13:34,465 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269390856] [2019-10-13 23:13:34,465 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 [2019-10-13 23:13:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:35,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 3018 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:13:35,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:13:35,323 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:13:35,323 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:13:36,058 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 23:13:36,059 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [354309786] [2019-10-13 23:13:36,095 INFO L162 IcfgInterpreter]: Started Sifa with 205 locations of interest [2019-10-13 23:13:36,095 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:13:36,105 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:13:36,112 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:13:36,113 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs