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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:40:08,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:40:08,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:40:08,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:40:08,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:40:08,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:40:08,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:40:08,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:40:08,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:40:08,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:40:08,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:40:08,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:40:08,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:40:08,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:40:08,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:40:08,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:40:08,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:40:08,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:40:08,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:40:08,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:40:08,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:40:08,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:40:08,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:40:08,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:40:08,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:40:08,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:40:08,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:40:08,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:40:08,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:40:08,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:40:08,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:40:08,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:40:08,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:40:08,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:40:08,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:40:08,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:40:08,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:40:08,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:40:08,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:40:08,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:40:08,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:40:08,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:40:08,983 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:40:08,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:40:08,983 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:40:08,983 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:40:08,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:40:08,984 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:40:08,985 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:40:08,985 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:40:08,985 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:40:08,985 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:40:08,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:40:08,986 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:40:08,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:40:08,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:40:08,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:40:08,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:40:08,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:40:08,987 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:40:08,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:40:08,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:40:08,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:40:08,988 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:40:08,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:40:08,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:40:08,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:40:08,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:40:08,989 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:40:08,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:40:08,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:40:08,990 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:40:09,023 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:40:09,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:40:09,039 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:40:09,041 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:40:09,041 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:40:09,042 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product22.cil.c [2019-09-10 02:40:09,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bfe3d51e/bdc4f03c049f46079d0ea50cb786ea23/FLAG44d9c009c [2019-09-10 02:40:09,761 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:40:09,761 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product22.cil.c [2019-09-10 02:40:09,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bfe3d51e/bdc4f03c049f46079d0ea50cb786ea23/FLAG44d9c009c [2019-09-10 02:40:09,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bfe3d51e/bdc4f03c049f46079d0ea50cb786ea23 [2019-09-10 02:40:09,951 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:40:09,952 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:40:09,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:40:09,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:40:09,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:40:09,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:40:09" (1/1) ... [2019-09-10 02:40:09,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a85358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:09, skipping insertion in model container [2019-09-10 02:40:09,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:40:09" (1/1) ... [2019-09-10 02:40:09,971 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:40:10,056 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:40:10,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:40:10,854 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:40:10,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:40:11,103 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:40:11,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:11 WrapperNode [2019-09-10 02:40:11,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:40:11,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:40:11,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:40:11,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:40:11,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:11" (1/1) ... [2019-09-10 02:40:11,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:11" (1/1) ... [2019-09-10 02:40:11,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:11" (1/1) ... [2019-09-10 02:40:11,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:11" (1/1) ... [2019-09-10 02:40:11,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:11" (1/1) ... [2019-09-10 02:40:11,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:11" (1/1) ... [2019-09-10 02:40:11,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:11" (1/1) ... [2019-09-10 02:40:11,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:40:11,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:40:11,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:40:11,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:40:11,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:11" (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 [2019-09-10 02:40:11,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:40:11,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:40:11,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:40:11,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:40:11,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:40:11,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:40:11,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:40:11,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:40:11,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:40:11,503 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-09-10 02:40:11,504 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-10 02:40:11,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-09-10 02:40:11,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-10 02:40:11,506 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-10 02:40:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-10 02:40:11,508 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:40:11,508 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-10 02:40:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-10 02:40:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-10 02:40:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-10 02:40:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-10 02:40:11,510 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-10 02:40:11,510 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-10 02:40:11,510 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-10 02:40:11,511 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-10 02:40:11,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-10 02:40:11,512 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-10 02:40:11,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-10 02:40:11,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-10 02:40:11,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-10 02:40:11,513 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-10 02:40:11,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-10 02:40:11,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-10 02:40:11,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-10 02:40:11,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-10 02:40:11,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-10 02:40:11,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-10 02:40:11,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-10 02:40:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:40:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:40:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:40:11,517 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:40:11,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-09-10 02:40:11,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-10 02:40:11,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-10 02:40:11,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-10 02:40:11,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-10 02:40:11,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-10 02:40:11,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-10 02:40:11,519 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-10 02:40:11,519 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-10 02:40:11,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:40:11,519 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:40:11,519 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-10 02:40:11,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-10 02:40:11,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-10 02:40:11,520 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-10 02:40:11,520 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-10 02:40:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-10 02:40:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-10 02:40:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-10 02:40:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-10 02:40:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-09-10 02:40:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-10 02:40:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:40:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-10 02:40:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-10 02:40:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-10 02:40:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-10 02:40:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-10 02:40:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-10 02:40:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-10 02:40:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-10 02:40:11,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-10 02:40:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-10 02:40:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-10 02:40:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-10 02:40:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-10 02:40:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-10 02:40:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-10 02:40:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-10 02:40:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-10 02:40:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-10 02:40:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-10 02:40:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-10 02:40:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-10 02:40:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-10 02:40:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-10 02:40:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-10 02:40:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-10 02:40:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-10 02:40:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-10 02:40:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-10 02:40:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-10 02:40:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-10 02:40:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-10 02:40:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-10 02:40:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-10 02:40:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-09-10 02:40:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-09-10 02:40:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-09-10 02:40:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-10 02:40:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-10 02:40:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-10 02:40:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-10 02:40:11,536 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-10 02:40:11,536 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-10 02:40:11,536 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-10 02:40:11,536 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-10 02:40:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-10 02:40:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-09-10 02:40:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-10 02:40:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:40:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:40:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:40:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:40:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:40:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:40:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:40:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:40:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:40:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:40:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:40:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:40:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:40:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:40:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:40:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:40:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:40:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:40:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:40:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:40:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-10 02:40:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-10 02:40:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-10 02:40:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-10 02:40:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-10 02:40:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-10 02:40:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-10 02:40:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-10 02:40:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-10 02:40:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-10 02:40:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-10 02:40:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-09-10 02:40:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-09-10 02:40:11,566 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-10 02:40:11,566 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-09-10 02:40:11,567 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-10 02:40:11,567 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-10 02:40:11,567 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-10 02:40:11,567 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-10 02:40:11,568 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-10 02:40:11,568 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-10 02:40:11,568 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-10 02:40:11,568 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-10 02:40:11,569 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:40:11,569 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-10 02:40:11,569 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-10 02:40:11,569 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-10 02:40:11,569 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-10 02:40:11,569 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-10 02:40:11,570 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-10 02:40:11,570 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-10 02:40:11,570 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-10 02:40:11,570 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-10 02:40:11,570 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-10 02:40:11,570 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-10 02:40:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-10 02:40:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-10 02:40:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-10 02:40:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-10 02:40:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:40:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:40:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:40:11,572 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:40:11,572 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:40:11,572 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-10 02:40:11,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-09-10 02:40:11,572 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-10 02:40:11,572 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-10 02:40:11,572 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-10 02:40:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-10 02:40:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-10 02:40:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-10 02:40:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-10 02:40:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-10 02:40:11,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-10 02:40:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-10 02:40:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-10 02:40:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-10 02:40:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-10 02:40:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-10 02:40:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-10 02:40:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-10 02:40:11,574 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-10 02:40:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-10 02:40:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-10 02:40:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:40:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:40:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-10 02:40:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-10 02:40:11,575 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-10 02:40:11,576 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-10 02:40:11,576 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-10 02:40:11,576 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-10 02:40:11,576 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-10 02:40:11,576 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-10 02:40:11,576 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-10 02:40:11,577 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-10 02:40:11,577 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-10 02:40:11,577 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-10 02:40:11,577 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-10 02:40:11,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-10 02:40:11,578 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-10 02:40:11,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-10 02:40:11,578 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-10 02:40:11,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-10 02:40:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-10 02:40:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-10 02:40:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-10 02:40:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-10 02:40:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-10 02:40:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-10 02:40:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-10 02:40:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-10 02:40:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-10 02:40:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-10 02:40:11,581 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-10 02:40:11,582 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-10 02:40:11,582 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-10 02:40:11,582 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-09-10 02:40:11,582 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-10 02:40:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-10 02:40:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-09-10 02:40:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-09-10 02:40:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-09-10 02:40:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:40:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:40:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:40:14,110 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:40:14,111 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 02:40:14,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:40:14 BoogieIcfgContainer [2019-09-10 02:40:14,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:40:14,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:40:14,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:40:14,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:40:14,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:40:09" (1/3) ... [2019-09-10 02:40:14,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519a5d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:40:14, skipping insertion in model container [2019-09-10 02:40:14,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:11" (2/3) ... [2019-09-10 02:40:14,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519a5d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:40:14, skipping insertion in model container [2019-09-10 02:40:14,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:40:14" (3/3) ... [2019-09-10 02:40:14,122 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product22.cil.c [2019-09-10 02:40:14,132 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:40:14,146 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:40:14,164 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:40:14,197 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:40:14,197 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:40:14,197 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:40:14,197 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:40:14,197 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:40:14,198 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:40:14,198 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:40:14,198 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:40:14,227 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states. [2019-09-10 02:40:14,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-09-10 02:40:14,252 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:14,254 INFO L399 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] [2019-09-10 02:40:14,260 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:14,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:14,267 INFO L82 PathProgramCache]: Analyzing trace with hash -262488185, now seen corresponding path program 1 times [2019-09-10 02:40:14,269 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:14,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:14,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:14,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:14,327 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:14,861 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:14,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:14,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:40:14,864 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:14,871 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:40:14,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:40:14,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:14,890 INFO L87 Difference]: Start difference. First operand 508 states. Second operand 2 states. [2019-09-10 02:40:14,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:14,998 INFO L93 Difference]: Finished difference Result 494 states and 654 transitions. [2019-09-10 02:40:14,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:40:15,000 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-09-10 02:40:15,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:15,021 INFO L225 Difference]: With dead ends: 494 [2019-09-10 02:40:15,021 INFO L226 Difference]: Without dead ends: 485 [2019-09-10 02:40:15,023 INFO L628 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 [2019-09-10 02:40:15,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-09-10 02:40:15,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2019-09-10 02:40:15,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2019-09-10 02:40:15,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 643 transitions. [2019-09-10 02:40:15,121 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 643 transitions. Word has length 145 [2019-09-10 02:40:15,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:15,123 INFO L475 AbstractCegarLoop]: Abstraction has 485 states and 643 transitions. [2019-09-10 02:40:15,123 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:40:15,123 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 643 transitions. [2019-09-10 02:40:15,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-09-10 02:40:15,130 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:15,131 INFO L399 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] [2019-09-10 02:40:15,131 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:15,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:15,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1163189320, now seen corresponding path program 1 times [2019-09-10 02:40:15,132 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:15,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:15,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:15,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:15,133 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:15,391 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:15,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:15,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:15,392 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:15,394 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:15,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:15,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:15,395 INFO L87 Difference]: Start difference. First operand 485 states and 643 transitions. Second operand 3 states. [2019-09-10 02:40:15,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:15,458 INFO L93 Difference]: Finished difference Result 488 states and 646 transitions. [2019-09-10 02:40:15,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:15,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-09-10 02:40:15,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:15,472 INFO L225 Difference]: With dead ends: 488 [2019-09-10 02:40:15,472 INFO L226 Difference]: Without dead ends: 488 [2019-09-10 02:40:15,473 INFO L628 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 [2019-09-10 02:40:15,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2019-09-10 02:40:15,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 487. [2019-09-10 02:40:15,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2019-09-10 02:40:15,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 645 transitions. [2019-09-10 02:40:15,540 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 645 transitions. Word has length 146 [2019-09-10 02:40:15,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:15,541 INFO L475 AbstractCegarLoop]: Abstraction has 487 states and 645 transitions. [2019-09-10 02:40:15,541 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:15,541 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 645 transitions. [2019-09-10 02:40:15,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-09-10 02:40:15,551 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:15,551 INFO L399 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] [2019-09-10 02:40:15,552 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:15,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:15,552 INFO L82 PathProgramCache]: Analyzing trace with hash -180533913, now seen corresponding path program 1 times [2019-09-10 02:40:15,552 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:15,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:15,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:15,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:15,554 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:15,781 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:15,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:15,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:15,782 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:15,784 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:15,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:15,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:15,786 INFO L87 Difference]: Start difference. First operand 487 states and 645 transitions. Second operand 3 states. [2019-09-10 02:40:15,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:15,815 INFO L93 Difference]: Finished difference Result 530 states and 718 transitions. [2019-09-10 02:40:15,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:15,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-09-10 02:40:15,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:15,819 INFO L225 Difference]: With dead ends: 530 [2019-09-10 02:40:15,819 INFO L226 Difference]: Without dead ends: 530 [2019-09-10 02:40:15,820 INFO L628 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 [2019-09-10 02:40:15,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2019-09-10 02:40:15,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 529. [2019-09-10 02:40:15,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 529 states. [2019-09-10 02:40:15,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 717 transitions. [2019-09-10 02:40:15,877 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 717 transitions. Word has length 158 [2019-09-10 02:40:15,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:15,878 INFO L475 AbstractCegarLoop]: Abstraction has 529 states and 717 transitions. [2019-09-10 02:40:15,878 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:15,878 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 717 transitions. [2019-09-10 02:40:15,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-09-10 02:40:15,881 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:15,881 INFO L399 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] [2019-09-10 02:40:15,882 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:15,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:15,882 INFO L82 PathProgramCache]: Analyzing trace with hash 541479896, now seen corresponding path program 1 times [2019-09-10 02:40:15,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:15,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:15,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:15,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:15,883 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:16,008 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:16,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:16,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:16,009 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:16,010 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:16,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:16,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:16,015 INFO L87 Difference]: Start difference. First operand 529 states and 717 transitions. Second operand 3 states. [2019-09-10 02:40:16,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:16,046 INFO L93 Difference]: Finished difference Result 611 states and 856 transitions. [2019-09-10 02:40:16,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:16,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-09-10 02:40:16,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:16,054 INFO L225 Difference]: With dead ends: 611 [2019-09-10 02:40:16,054 INFO L226 Difference]: Without dead ends: 611 [2019-09-10 02:40:16,054 INFO L628 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 [2019-09-10 02:40:16,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2019-09-10 02:40:16,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 610. [2019-09-10 02:40:16,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2019-09-10 02:40:16,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 855 transitions. [2019-09-10 02:40:16,083 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 855 transitions. Word has length 159 [2019-09-10 02:40:16,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:16,084 INFO L475 AbstractCegarLoop]: Abstraction has 610 states and 855 transitions. [2019-09-10 02:40:16,084 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:16,084 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 855 transitions. [2019-09-10 02:40:16,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-09-10 02:40:16,090 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:16,090 INFO L399 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, 1] [2019-09-10 02:40:16,090 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:16,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:16,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1088431641, now seen corresponding path program 1 times [2019-09-10 02:40:16,093 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:16,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:16,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:16,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:16,095 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:16,267 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:16,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:16,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:16,268 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:16,269 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:16,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:16,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:16,270 INFO L87 Difference]: Start difference. First operand 610 states and 855 transitions. Second operand 3 states. [2019-09-10 02:40:16,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:16,305 INFO L93 Difference]: Finished difference Result 767 states and 1120 transitions. [2019-09-10 02:40:16,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:16,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-09-10 02:40:16,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:16,310 INFO L225 Difference]: With dead ends: 767 [2019-09-10 02:40:16,311 INFO L226 Difference]: Without dead ends: 767 [2019-09-10 02:40:16,311 INFO L628 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 [2019-09-10 02:40:16,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2019-09-10 02:40:16,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 766. [2019-09-10 02:40:16,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 766 states. [2019-09-10 02:40:16,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1119 transitions. [2019-09-10 02:40:16,347 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1119 transitions. Word has length 160 [2019-09-10 02:40:16,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:16,348 INFO L475 AbstractCegarLoop]: Abstraction has 766 states and 1119 transitions. [2019-09-10 02:40:16,348 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:16,348 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1119 transitions. [2019-09-10 02:40:16,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-09-10 02:40:16,352 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:16,352 INFO L399 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] [2019-09-10 02:40:16,353 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:16,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:16,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1690260276, now seen corresponding path program 1 times [2019-09-10 02:40:16,353 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:16,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:16,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:16,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:16,355 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:16,583 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:16,583 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:16,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:40:16,583 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:16,584 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:40:16,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:40:16,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:40:16,585 INFO L87 Difference]: Start difference. First operand 766 states and 1119 transitions. Second operand 6 states. [2019-09-10 02:40:17,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:17,359 INFO L93 Difference]: Finished difference Result 780 states and 1136 transitions. [2019-09-10 02:40:17,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:40:17,359 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2019-09-10 02:40:17,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:17,365 INFO L225 Difference]: With dead ends: 780 [2019-09-10 02:40:17,366 INFO L226 Difference]: Without dead ends: 778 [2019-09-10 02:40:17,366 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:40:17,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2019-09-10 02:40:17,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 778. [2019-09-10 02:40:17,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2019-09-10 02:40:17,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1134 transitions. [2019-09-10 02:40:17,393 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1134 transitions. Word has length 162 [2019-09-10 02:40:17,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:17,393 INFO L475 AbstractCegarLoop]: Abstraction has 778 states and 1134 transitions. [2019-09-10 02:40:17,393 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:40:17,394 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1134 transitions. [2019-09-10 02:40:17,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-09-10 02:40:17,398 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:17,398 INFO L399 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, 1, 1] [2019-09-10 02:40:17,399 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:17,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:17,399 INFO L82 PathProgramCache]: Analyzing trace with hash -296484008, now seen corresponding path program 1 times [2019-09-10 02:40:17,399 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:17,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:17,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:17,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:17,400 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:17,522 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:17,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:17,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:17,523 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:17,523 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:17,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:17,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:17,524 INFO L87 Difference]: Start difference. First operand 778 states and 1134 transitions. Second operand 3 states. [2019-09-10 02:40:17,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:17,546 INFO L93 Difference]: Finished difference Result 1079 states and 1639 transitions. [2019-09-10 02:40:17,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:17,547 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-09-10 02:40:17,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:17,554 INFO L225 Difference]: With dead ends: 1079 [2019-09-10 02:40:17,554 INFO L226 Difference]: Without dead ends: 1079 [2019-09-10 02:40:17,555 INFO L628 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 [2019-09-10 02:40:17,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2019-09-10 02:40:17,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1078. [2019-09-10 02:40:17,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1078 states. [2019-09-10 02:40:17,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1638 transitions. [2019-09-10 02:40:17,588 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1638 transitions. Word has length 161 [2019-09-10 02:40:17,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:17,588 INFO L475 AbstractCegarLoop]: Abstraction has 1078 states and 1638 transitions. [2019-09-10 02:40:17,588 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:17,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1638 transitions. [2019-09-10 02:40:17,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-09-10 02:40:17,633 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:17,634 INFO L399 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] [2019-09-10 02:40:17,634 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:17,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:17,634 INFO L82 PathProgramCache]: Analyzing trace with hash -501047075, now seen corresponding path program 1 times [2019-09-10 02:40:17,635 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:17,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:17,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:17,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:17,636 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:17,787 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-10 02:40:17,787 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:40:17,787 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:40:17,789 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 164 with the following transitions: [2019-09-10 02:40:17,792 INFO L207 CegarAbsIntRunner]: [123], [152], [155], [156], [157], [159], [269], [271], [275], [278], [279], [280], [283], [289], [313], [320], [322], [325], [334], [337], [346], [367], [369], [370], [373], [383], [413], [602], [604], [605], [606], [644], [647], [661], [700], [701], [702], [742], [746], [749], [757], [760], [824], [833], [837], [839], [841], [844], [851], [858], [861], [863], [999], [1004], [1007], [1016], [1124], [1196], [1198], [1200], [1207], [1211], [1234], [1237], [1238], [1241], [1244], [1275], [1276], [1278], [1347], [1350], [1356], [1391], [1394], [1408], [1416], [1419], [1428], [1617], [1619], [1621], [1623], [1624], [1654], [1664], [1665], [1666], [1667], [1668], [1669], [1672], [1673], [1674], [1675], [1676], [1678], [1679], [1680], [1681], [1690], [1691], [1692], [1704], [1705], [1710], [1711], [1732], [1733], [1748], [1754], [1755], [1756], [1757], [1758], [1759], [1760], [1761], [1762], [1764], [1765], [1766], [1767], [1800], [1801], [1818], [1820], [1821], [1822], [1823], [1828], [1836], [1837], [1838], [1839], [1840], [1841], [1842], [1856], [1857], [1858], [1859], [1860], [1861], [1862], [1863], [1864] [2019-09-10 02:40:17,848 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:40:17,848 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:40:17,986 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:40:17,988 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 188 root evaluator evaluations with a maximum evaluation depth of 0. Performed 188 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 366 variables. [2019-09-10 02:40:17,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:17,992 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:40:18,053 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:40:18,053 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:40:18,058 INFO L420 sIntCurrentIteration]: We unified 162 AI predicates to 162 [2019-09-10 02:40:18,058 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:40:18,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:40:18,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 02:40:18,060 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:18,060 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:40:18,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:40:18,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:18,061 INFO L87 Difference]: Start difference. First operand 1078 states and 1638 transitions. Second operand 2 states. [2019-09-10 02:40:18,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:18,061 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:40:18,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:40:18,062 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 163 [2019-09-10 02:40:18,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:18,062 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:40:18,062 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:40:18,062 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:18,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:40:18,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:40:18,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:40:18,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:40:18,063 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 163 [2019-09-10 02:40:18,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:18,064 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:40:18,064 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:40:18,064 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:40:18,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:40:18,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:40:18 BoogieIcfgContainer [2019-09-10 02:40:18,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:40:18,072 INFO L168 Benchmark]: Toolchain (without parser) took 8118.87 ms. Allocated memory was 135.3 MB in the beginning and 349.2 MB in the end (delta: 213.9 MB). Free memory was 89.1 MB in the beginning and 215.0 MB in the end (delta: -125.9 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:18,073 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 135.3 MB. Free memory was 109.8 MB in the beginning and 109.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:40:18,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1150.85 ms. Allocated memory was 135.3 MB in the beginning and 206.0 MB in the end (delta: 70.8 MB). Free memory was 88.9 MB in the beginning and 137.7 MB in the end (delta: -48.8 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:18,075 INFO L168 Benchmark]: Boogie Preprocessor took 289.33 ms. Allocated memory is still 206.0 MB. Free memory was 137.1 MB in the beginning and 128.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:18,076 INFO L168 Benchmark]: RCFGBuilder took 2718.88 ms. Allocated memory was 206.0 MB in the beginning and 254.8 MB in the end (delta: 48.8 MB). Free memory was 128.7 MB in the beginning and 156.3 MB in the end (delta: -27.6 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:18,077 INFO L168 Benchmark]: TraceAbstraction took 3955.24 ms. Allocated memory was 254.8 MB in the beginning and 349.2 MB in the end (delta: 94.4 MB). Free memory was 156.3 MB in the beginning and 215.0 MB in the end (delta: -58.7 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:18,081 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 135.3 MB. Free memory was 109.8 MB in the beginning and 109.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1150.85 ms. Allocated memory was 135.3 MB in the beginning and 206.0 MB in the end (delta: 70.8 MB). Free memory was 88.9 MB in the beginning and 137.7 MB in the end (delta: -48.8 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 289.33 ms. Allocated memory is still 206.0 MB. Free memory was 137.1 MB in the beginning and 128.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2718.88 ms. Allocated memory was 206.0 MB in the beginning and 254.8 MB in the end (delta: 48.8 MB). Free memory was 128.7 MB in the beginning and 156.3 MB in the end (delta: -27.6 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3955.24 ms. Allocated memory was 254.8 MB in the beginning and 349.2 MB in the end (delta: 94.4 MB). Free memory was 156.3 MB in the beginning and 215.0 MB in the end (delta: -58.7 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1552]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 112 procedures, 760 locations, 1 error locations. SAFE Result, 3.8s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4559 SDtfs, 850 SDslu, 4931 SDs, 0 SdLazy, 244 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1078occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.2839506172839505 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 5 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1254 NumberOfCodeBlocks, 1254 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1246 ConstructedInterpolants, 0 QuantifiedInterpolants, 213250 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 225/228 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...