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_spec4_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:53:10,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:53:10,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:53:10,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:53:10,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:53:10,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:53:10,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:53:10,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:53:10,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:53:10,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:53:10,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:53:10,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:53:10,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:53:10,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:53:10,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:53:10,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:53:10,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:53:10,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:53:10,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:53:10,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:53:10,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:53:10,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:53:10,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:53:10,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:53:10,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:53:10,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:53:10,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:53:10,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:53:10,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:53:10,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:53:10,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:53:10,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:53:10,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:53:10,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:53:10,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:53:10,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:53:10,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:53:10,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:53:10,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:53:10,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:53:10,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:53:10,536 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 [2019-10-03 02:53:10,550 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:53:10,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:53:10,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:53:10,551 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:53:10,552 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:53:10,552 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:53:10,552 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:53:10,552 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:53:10,552 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:53:10,553 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:53:10,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:53:10,553 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:53:10,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:53:10,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:53:10,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:53:10,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:53:10,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:53:10,555 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:53:10,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:53:10,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:53:10,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:53:10,556 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:53:10,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:53:10,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:53:10,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:53:10,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:53:10,556 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:53:10,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:53:10,557 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:53:10,557 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:53:10,589 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:53:10,601 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:53:10,605 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:53:10,606 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:53:10,607 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:53:10,607 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product29.cil.c [2019-10-03 02:53:10,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09834fd6d/06728343009b40de8ff5e168a4116fd5/FLAG6153de311 [2019-10-03 02:53:11,337 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:53:11,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product29.cil.c [2019-10-03 02:53:11,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09834fd6d/06728343009b40de8ff5e168a4116fd5/FLAG6153de311 [2019-10-03 02:53:11,512 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09834fd6d/06728343009b40de8ff5e168a4116fd5 [2019-10-03 02:53:11,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:53:11,523 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:53:11,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:53:11,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:53:11,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:53:11,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:53:11" (1/1) ... [2019-10-03 02:53:11,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d32cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:11, skipping insertion in model container [2019-10-03 02:53:11,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:53:11" (1/1) ... [2019-10-03 02:53:11,541 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:53:11,632 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:53:12,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:53:12,477 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:53:12,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:53:12,786 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:53:12,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:12 WrapperNode [2019-10-03 02:53:12,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:53:12,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:53:12,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:53:12,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:53:12,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:12" (1/1) ... [2019-10-03 02:53:12,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:12" (1/1) ... [2019-10-03 02:53:12,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:12" (1/1) ... [2019-10-03 02:53:12,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:12" (1/1) ... [2019-10-03 02:53:12,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:12" (1/1) ... [2019-10-03 02:53:12,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:12" (1/1) ... [2019-10-03 02:53:12,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:12" (1/1) ... [2019-10-03 02:53:12,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:53:12,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:53:12,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:53:12,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:53:12,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:12" (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 [2019-10-03 02:53:13,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:53:13,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:53:13,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:53:13,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-03 02:53:13,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-03 02:53:13,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-03 02:53:13,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-03 02:53:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-03 02:53:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-03 02:53:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-03 02:53:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-03 02:53:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:53:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:53:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-03 02:53:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-03 02:53:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-03 02:53:13,049 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-03 02:53:13,049 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-03 02:53:13,049 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-03 02:53:13,049 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-03 02:53:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-03 02:53:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-03 02:53:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-03 02:53:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:53:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:53:13,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:53:13,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:53:13,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:53:13,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:53:13,051 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-03 02:53:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-03 02:53:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-03 02:53:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-03 02:53:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-03 02:53:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-03 02:53:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-03 02:53:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-03 02:53:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-03 02:53:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-03 02:53:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-03 02:53:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-03 02:53:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-03 02:53:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-03 02:53:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-03 02:53:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-03 02:53:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-03 02:53:13,054 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-03 02:53:13,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-03 02:53:13,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-03 02:53:13,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-03 02:53:13,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-03 02:53:13,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-03 02:53:13,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-03 02:53:13,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-03 02:53:13,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-03 02:53:13,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-03 02:53:13,056 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-03 02:53:13,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-03 02:53:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-03 02:53:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-03 02:53:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-03 02:53:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-03 02:53:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-03 02:53:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-03 02:53:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-03 02:53:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-03 02:53:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:53:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:53:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:53:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:53:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-03 02:53:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-03 02:53:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-03 02:53:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-03 02:53:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-03 02:53:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-03 02:53:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-03 02:53:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-03 02:53:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-03 02:53:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-03 02:53:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-03 02:53:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-03 02:53:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-03 02:53:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-03 02:53:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-03 02:53:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-03 02:53:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-03 02:53:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-03 02:53:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-03 02:53:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-03 02:53:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-03 02:53:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-03 02:53:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:53:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:53:13,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-03 02:53:13,063 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-03 02:53:13,063 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-03 02:53:13,063 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-03 02:53:13,063 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-03 02:53:13,064 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-03 02:53:13,064 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-03 02:53:13,064 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-03 02:53:13,064 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-03 02:53:13,064 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-03 02:53:13,064 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-03 02:53:13,064 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-03 02:53:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-03 02:53:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-03 02:53:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-03 02:53:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-03 02:53:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-03 02:53:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-03 02:53:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-03 02:53:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-03 02:53:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-03 02:53:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:53:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:53:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:53:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-03 02:53:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-03 02:53:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-03 02:53:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-03 02:53:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-03 02:53:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-03 02:53:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-03 02:53:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-03 02:53:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-03 02:53:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-03 02:53:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-03 02:53:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:53:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:53:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:53:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-03 02:53:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-03 02:53:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-03 02:53:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-03 02:53:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-03 02:53:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-03 02:53:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-03 02:53:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-03 02:53:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-03 02:53:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-03 02:53:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-03 02:53:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:53:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:53:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:53:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-03 02:53:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-03 02:53:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-03 02:53:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-03 02:53:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-03 02:53:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-03 02:53:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-03 02:53:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-03 02:53:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-03 02:53:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-03 02:53:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-03 02:53:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-03 02:53:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-03 02:53:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:53:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:53:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:53:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:53:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:53:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:53:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:53:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:53:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:53:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:53:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:53:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:53:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:53:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:53:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:53:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:53:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:53:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-03 02:53:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-03 02:53:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-03 02:53:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-03 02:53:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-03 02:53:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-03 02:53:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-03 02:53:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-03 02:53:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-03 02:53:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-03 02:53:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-03 02:53:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-03 02:53:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-03 02:53:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-03 02:53:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-03 02:53:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-03 02:53:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-03 02:53:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-03 02:53:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-03 02:53:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-03 02:53:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-03 02:53:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-03 02:53:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-03 02:53:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-03 02:53:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-03 02:53:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-03 02:53:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-03 02:53:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-03 02:53:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-03 02:53:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-03 02:53:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-03 02:53:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-03 02:53:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-03 02:53:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-03 02:53:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-03 02:53:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-03 02:53:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-03 02:53:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:53:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-03 02:53:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-03 02:53:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-03 02:53:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-03 02:53:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-03 02:53:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-03 02:53:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-03 02:53:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-03 02:53:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-03 02:53:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-03 02:53:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-03 02:53:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-03 02:53:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:53:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-03 02:53:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-03 02:53:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-03 02:53:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-03 02:53:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-03 02:53:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-03 02:53:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-03 02:53:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-03 02:53:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-03 02:53:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-03 02:53:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-03 02:53:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-03 02:53:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-03 02:53:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-03 02:53:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-03 02:53:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:53:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:53:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:53:15,270 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:53:15,271 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 02:53:15,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:53:15 BoogieIcfgContainer [2019-10-03 02:53:15,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:53:15,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:53:15,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:53:15,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:53:15,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:53:11" (1/3) ... [2019-10-03 02:53:15,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7170b45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:53:15, skipping insertion in model container [2019-10-03 02:53:15,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:12" (2/3) ... [2019-10-03 02:53:15,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7170b45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:53:15, skipping insertion in model container [2019-10-03 02:53:15,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:53:15" (3/3) ... [2019-10-03 02:53:15,282 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product29.cil.c [2019-10-03 02:53:15,293 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:53:15,311 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:53:15,328 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:53:15,352 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:53:15,352 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:53:15,352 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:53:15,352 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:53:15,352 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:53:15,352 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:53:15,353 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:53:15,353 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:53:15,406 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states. [2019-10-03 02:53:15,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-03 02:53:15,438 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:15,439 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:15,442 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:15,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:15,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1933710850, now seen corresponding path program 1 times [2019-10-03 02:53:15,449 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:15,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:15,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:15,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:15,516 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:16,217 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:16,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:16,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:53:16,220 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:16,227 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:53:16,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:53:16,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:16,246 INFO L87 Difference]: Start difference. First operand 602 states. Second operand 2 states. [2019-10-03 02:53:16,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:16,304 INFO L93 Difference]: Finished difference Result 554 states and 759 transitions. [2019-10-03 02:53:16,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:53:16,306 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 173 [2019-10-03 02:53:16,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:16,335 INFO L225 Difference]: With dead ends: 554 [2019-10-03 02:53:16,335 INFO L226 Difference]: Without dead ends: 545 [2019-10-03 02:53:16,339 INFO L640 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 [2019-10-03 02:53:16,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2019-10-03 02:53:16,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2019-10-03 02:53:16,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2019-10-03 02:53:16,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 748 transitions. [2019-10-03 02:53:16,442 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 748 transitions. Word has length 173 [2019-10-03 02:53:16,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:16,444 INFO L475 AbstractCegarLoop]: Abstraction has 545 states and 748 transitions. [2019-10-03 02:53:16,444 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:53:16,444 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 748 transitions. [2019-10-03 02:53:16,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-03 02:53:16,451 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:16,452 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:16,452 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:16,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:16,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1848846547, now seen corresponding path program 1 times [2019-10-03 02:53:16,453 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:16,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:16,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:16,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:16,458 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:16,734 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:16,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:16,735 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:16,742 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:16,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:16,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:16,743 INFO L87 Difference]: Start difference. First operand 545 states and 748 transitions. Second operand 3 states. [2019-10-03 02:53:16,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:16,812 INFO L93 Difference]: Finished difference Result 548 states and 751 transitions. [2019-10-03 02:53:16,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:16,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-03 02:53:16,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:16,825 INFO L225 Difference]: With dead ends: 548 [2019-10-03 02:53:16,825 INFO L226 Difference]: Without dead ends: 548 [2019-10-03 02:53:16,826 INFO L640 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 [2019-10-03 02:53:16,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2019-10-03 02:53:16,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 547. [2019-10-03 02:53:16,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2019-10-03 02:53:16,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 750 transitions. [2019-10-03 02:53:16,873 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 750 transitions. Word has length 174 [2019-10-03 02:53:16,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:16,874 INFO L475 AbstractCegarLoop]: Abstraction has 547 states and 750 transitions. [2019-10-03 02:53:16,874 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:16,874 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 750 transitions. [2019-10-03 02:53:16,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-03 02:53:16,879 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:16,880 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:16,880 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:16,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:16,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1241537791, now seen corresponding path program 1 times [2019-10-03 02:53:16,881 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:16,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:16,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:16,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:16,886 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:17,189 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:17,190 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:17,190 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:17,190 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:17,193 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:17,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:17,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:17,197 INFO L87 Difference]: Start difference. First operand 547 states and 750 transitions. Second operand 3 states. [2019-10-03 02:53:17,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:17,243 INFO L93 Difference]: Finished difference Result 588 states and 820 transitions. [2019-10-03 02:53:17,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:17,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-03 02:53:17,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:17,254 INFO L225 Difference]: With dead ends: 588 [2019-10-03 02:53:17,254 INFO L226 Difference]: Without dead ends: 588 [2019-10-03 02:53:17,255 INFO L640 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 [2019-10-03 02:53:17,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2019-10-03 02:53:17,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 587. [2019-10-03 02:53:17,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2019-10-03 02:53:17,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 819 transitions. [2019-10-03 02:53:17,310 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 819 transitions. Word has length 180 [2019-10-03 02:53:17,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:17,313 INFO L475 AbstractCegarLoop]: Abstraction has 587 states and 819 transitions. [2019-10-03 02:53:17,313 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:17,314 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 819 transitions. [2019-10-03 02:53:17,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-03 02:53:17,325 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:17,325 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:17,326 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:17,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:17,326 INFO L82 PathProgramCache]: Analyzing trace with hash -2124332308, now seen corresponding path program 1 times [2019-10-03 02:53:17,326 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:17,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:17,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:17,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:17,332 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:17,674 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:17,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:17,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:53:17,676 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:17,678 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:53:17,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:53:17,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:53:17,687 INFO L87 Difference]: Start difference. First operand 587 states and 819 transitions. Second operand 7 states. [2019-10-03 02:53:21,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:21,293 INFO L93 Difference]: Finished difference Result 872 states and 1193 transitions. [2019-10-03 02:53:21,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:53:21,294 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2019-10-03 02:53:21,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:21,301 INFO L225 Difference]: With dead ends: 872 [2019-10-03 02:53:21,301 INFO L226 Difference]: Without dead ends: 870 [2019-10-03 02:53:21,302 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:53:21,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-10-03 02:53:21,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 861. [2019-10-03 02:53:21,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2019-10-03 02:53:21,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1182 transitions. [2019-10-03 02:53:21,336 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1182 transitions. Word has length 181 [2019-10-03 02:53:21,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:21,337 INFO L475 AbstractCegarLoop]: Abstraction has 861 states and 1182 transitions. [2019-10-03 02:53:21,337 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:53:21,337 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1182 transitions. [2019-10-03 02:53:21,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-03 02:53:21,341 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:21,342 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:21,342 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:21,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:21,343 INFO L82 PathProgramCache]: Analyzing trace with hash 176199948, now seen corresponding path program 1 times [2019-10-03 02:53:21,343 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:21,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:21,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:21,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:21,347 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:21,712 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:21,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:21,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-03 02:53:21,712 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:21,713 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-03 02:53:21,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-03 02:53:21,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-03 02:53:21,714 INFO L87 Difference]: Start difference. First operand 861 states and 1182 transitions. Second operand 20 states. [2019-10-03 02:53:22,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:22,346 INFO L93 Difference]: Finished difference Result 979 states and 1345 transitions. [2019-10-03 02:53:22,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-03 02:53:22,347 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 182 [2019-10-03 02:53:22,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:22,353 INFO L225 Difference]: With dead ends: 979 [2019-10-03 02:53:22,354 INFO L226 Difference]: Without dead ends: 971 [2019-10-03 02:53:22,355 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-03 02:53:22,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2019-10-03 02:53:22,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 969. [2019-10-03 02:53:22,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 969 states. [2019-10-03 02:53:22,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1333 transitions. [2019-10-03 02:53:22,394 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1333 transitions. Word has length 182 [2019-10-03 02:53:22,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:22,394 INFO L475 AbstractCegarLoop]: Abstraction has 969 states and 1333 transitions. [2019-10-03 02:53:22,395 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-03 02:53:22,395 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1333 transitions. [2019-10-03 02:53:22,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-03 02:53:22,399 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:22,399 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:22,400 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:22,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:22,400 INFO L82 PathProgramCache]: Analyzing trace with hash -427472189, now seen corresponding path program 1 times [2019-10-03 02:53:22,400 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:22,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:22,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:22,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:22,405 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:22,586 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:22,586 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:22,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:53:22,587 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:22,587 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:53:22,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:53:22,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:53:22,588 INFO L87 Difference]: Start difference. First operand 969 states and 1333 transitions. Second operand 8 states. [2019-10-03 02:53:24,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:24,085 INFO L93 Difference]: Finished difference Result 1665 states and 2270 transitions. [2019-10-03 02:53:24,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-03 02:53:24,086 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2019-10-03 02:53:24,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:24,097 INFO L225 Difference]: With dead ends: 1665 [2019-10-03 02:53:24,097 INFO L226 Difference]: Without dead ends: 1665 [2019-10-03 02:53:24,098 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:53:24,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2019-10-03 02:53:24,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1646. [2019-10-03 02:53:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2019-10-03 02:53:24,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2251 transitions. [2019-10-03 02:53:24,169 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2251 transitions. Word has length 191 [2019-10-03 02:53:24,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:24,170 INFO L475 AbstractCegarLoop]: Abstraction has 1646 states and 2251 transitions. [2019-10-03 02:53:24,170 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:53:24,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2251 transitions. [2019-10-03 02:53:24,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-03 02:53:24,176 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:24,176 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:24,176 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:24,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:24,177 INFO L82 PathProgramCache]: Analyzing trace with hash 304313995, now seen corresponding path program 1 times [2019-10-03 02:53:24,177 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:24,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:24,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:24,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:24,181 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:24,655 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:24,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:24,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-03 02:53:24,656 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:24,656 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-03 02:53:24,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-03 02:53:24,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:53:24,657 INFO L87 Difference]: Start difference. First operand 1646 states and 2251 transitions. Second operand 19 states. [2019-10-03 02:53:25,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:25,699 INFO L93 Difference]: Finished difference Result 1645 states and 2247 transitions. [2019-10-03 02:53:25,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-03 02:53:25,699 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 192 [2019-10-03 02:53:25,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:25,710 INFO L225 Difference]: With dead ends: 1645 [2019-10-03 02:53:25,711 INFO L226 Difference]: Without dead ends: 1645 [2019-10-03 02:53:25,712 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2019-10-03 02:53:25,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2019-10-03 02:53:25,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1644. [2019-10-03 02:53:25,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1644 states. [2019-10-03 02:53:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2246 transitions. [2019-10-03 02:53:25,767 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2246 transitions. Word has length 192 [2019-10-03 02:53:25,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:25,768 INFO L475 AbstractCegarLoop]: Abstraction has 1644 states and 2246 transitions. [2019-10-03 02:53:25,768 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-03 02:53:25,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2246 transitions. [2019-10-03 02:53:25,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-03 02:53:25,773 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:25,774 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:25,774 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:25,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:25,774 INFO L82 PathProgramCache]: Analyzing trace with hash 383856407, now seen corresponding path program 2 times [2019-10-03 02:53:25,775 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:25,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:25,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:25,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:25,779 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:26,031 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:26,032 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:26,032 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:53:26,032 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-10-03 02:53:26,034 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-10-03 02:53:26,035 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:26,035 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-03 02:53:26,204 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-03 02:53:26,205 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-10-03 02:53:26,621 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-03 02:53:26,621 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-03 02:53:26,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 2125 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-03 02:53:26,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-03 02:53:26,899 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-03 02:53:26,899 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-03 02:53:27,410 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-03 02:53:27,418 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:53:27,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-10-03 02:53:27,418 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:27,419 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:53:27,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:53:27,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-10-03 02:53:27,420 INFO L87 Difference]: Start difference. First operand 1644 states and 2246 transitions. Second operand 8 states. [2019-10-03 02:53:28,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:28,517 INFO L93 Difference]: Finished difference Result 3256 states and 4467 transitions. [2019-10-03 02:53:28,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-03 02:53:28,517 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 192 [2019-10-03 02:53:28,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:28,540 INFO L225 Difference]: With dead ends: 3256 [2019-10-03 02:53:28,540 INFO L226 Difference]: Without dead ends: 3256 [2019-10-03 02:53:28,541 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 373 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2019-10-03 02:53:28,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3256 states. [2019-10-03 02:53:28,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3256 to 3241. [2019-10-03 02:53:28,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3241 states. [2019-10-03 02:53:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 4453 transitions. [2019-10-03 02:53:28,706 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 4453 transitions. Word has length 192 [2019-10-03 02:53:28,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:28,708 INFO L475 AbstractCegarLoop]: Abstraction has 3241 states and 4453 transitions. [2019-10-03 02:53:28,708 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:53:28,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 4453 transitions. [2019-10-03 02:53:28,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-03 02:53:28,718 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:28,718 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:28,719 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:28,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:28,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1328447174, now seen corresponding path program 1 times [2019-10-03 02:53:28,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:28,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:28,724 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-03 02:53:28,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:28,725 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:29,084 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:29,086 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:29,086 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:53:29,087 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2019-10-03 02:53:29,091 INFO L207 CegarAbsIntRunner]: [66], [69], [70], [73], [79], [80], [83], [92], [103], [106], [116], [117], [133], [136], [150], [151], [153], [263], [265], [269], [272], [273], [274], [277], [283], [310], [313], [322], [343], [345], [346], [349], [359], [620], [622], [623], [624], [660], [663], [677], [706], [707], [708], [711], [717], [718], [735], [737], [741], [744], [758], [762], [765], [783], [786], [844], [853], [857], [859], [861], [864], [871], [878], [881], [1017], [1019], [1036], [1114], [1116], [1119], [1121], [1124], [1184], [1238], [1260], [1271], [1274], [1275], [1278], [1281], [1312], [1313], [1315], [1317], [1324], [1330], [1332], [1445], [1448], [1450], [1453], [1462], [1468], [1471], [1480], [1534], [1537], [1546], [1674], [1676], [1678], [1680], [1681], [1709], [1719], [1720], [1721], [1722], [1723], [1724], [1727], [1728], [1729], [1730], [1731], [1733], [1734], [1735], [1736], [1753], [1754], [1799], [1800], [1813], [1819], [1820], [1821], [1822], [1823], [1824], [1825], [1826], [1827], [1828], [1829], [1830], [1831], [1832], [1833], [1835], [1836], [1837], [1838], [1881], [1883], [1884], [1901], [1903], [1904], [1905], [1906], [1907], [1909], [1910], [1911], [1913], [1914], [1915], [1916], [1917], [1918], [1919], [1920], [1925], [1927], [1928], [1929], [1949], [1950], [1951], [1952], [1953], [1954], [1955], [1956], [1957] [2019-10-03 02:53:29,143 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:53:29,143 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:53:29,269 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:53:29,271 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 205 root evaluator evaluations with a maximum evaluation depth of 0. Performed 205 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 376 variables. [2019-10-03 02:53:29,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:29,276 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:53:29,343 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:53:29,344 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:53:29,348 INFO L420 sIntCurrentIteration]: We unified 192 AI predicates to 192 [2019-10-03 02:53:29,349 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:53:29,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:53:29,350 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:53:29,350 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:29,351 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:53:29,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:53:29,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:29,351 INFO L87 Difference]: Start difference. First operand 3241 states and 4453 transitions. Second operand 2 states. [2019-10-03 02:53:29,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:29,352 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:53:29,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:53:29,352 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 193 [2019-10-03 02:53:29,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:29,353 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:53:29,353 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:53:29,353 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:29,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:53:29,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:53:29,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:53:29,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:53:29,354 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 193 [2019-10-03 02:53:29,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:29,354 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:53:29,354 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:53:29,354 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:53:29,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:53:29,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:53:29 BoogieIcfgContainer [2019-10-03 02:53:29,361 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:53:29,366 INFO L168 Benchmark]: Toolchain (without parser) took 17839.44 ms. Allocated memory was 139.5 MB in the beginning and 570.4 MB in the end (delta: 431.0 MB). Free memory was 83.0 MB in the beginning and 371.6 MB in the end (delta: -288.6 MB). Peak memory consumption was 142.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:29,367 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 104.1 MB in the beginning and 103.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:53:29,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1264.12 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 82.8 MB in the beginning and 133.9 MB in the end (delta: -51.1 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:29,370 INFO L168 Benchmark]: Boogie Preprocessor took 186.52 ms. Allocated memory is still 201.3 MB. Free memory was 133.9 MB in the beginning and 124.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:29,371 INFO L168 Benchmark]: RCFGBuilder took 2297.36 ms. Allocated memory was 201.3 MB in the beginning and 267.4 MB in the end (delta: 66.1 MB). Free memory was 124.6 MB in the beginning and 155.5 MB in the end (delta: -30.8 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:29,375 INFO L168 Benchmark]: TraceAbstraction took 14086.70 ms. Allocated memory was 267.4 MB in the beginning and 570.4 MB in the end (delta: 303.0 MB). Free memory was 155.5 MB in the beginning and 371.6 MB in the end (delta: -216.1 MB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:29,386 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 104.1 MB in the beginning and 103.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1264.12 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 82.8 MB in the beginning and 133.9 MB in the end (delta: -51.1 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 186.52 ms. Allocated memory is still 201.3 MB. Free memory was 133.9 MB in the beginning and 124.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2297.36 ms. Allocated memory was 201.3 MB in the beginning and 267.4 MB in the end (delta: 66.1 MB). Free memory was 124.6 MB in the beginning and 155.5 MB in the end (delta: -30.8 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14086.70 ms. Allocated memory was 267.4 MB in the beginning and 570.4 MB in the end (delta: 303.0 MB). Free memory was 155.5 MB in the beginning and 371.6 MB in the end (delta: -216.1 MB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2617]: 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 115 procedures, 803 locations, 1 error locations. SAFE Result, 14.0s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 8.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6315 SDtfs, 3012 SDslu, 36620 SDs, 0 SdLazy, 4897 SolverSat, 577 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 700 GetRequests, 588 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3241occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.2135416666666665 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 48 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1850 NumberOfCodeBlocks, 1734 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2031 ConstructedInterpolants, 0 QuantifiedInterpolants, 561458 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2125 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 364/370 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...