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_spec0_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:49:12,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:49:12,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:49:12,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:49:12,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:49:12,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:49:12,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:49:12,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:49:12,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:49:12,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:49:12,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:49:12,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:49:12,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:49:12,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:49:12,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:49:12,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:49:12,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:49:12,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:49:12,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:49:12,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:49:12,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:49:12,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:49:12,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:49:12,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:49:12,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:49:12,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:49:12,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:49:12,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:49:12,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:49:12,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:49:12,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:49:12,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:49:12,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:49:12,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:49:12,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:49:12,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:49:12,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:49:12,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:49:12,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:49:12,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:49:12,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:49:12,882 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 02:49:12,909 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:49:12,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:49:12,910 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:49:12,910 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:49:12,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:49:12,911 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:49:12,911 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:49:12,911 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:49:12,912 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:49:12,912 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:49:12,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:49:12,914 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:49:12,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:49:12,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:49:12,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:49:12,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:49:12,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:49:12,916 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:49:12,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:49:12,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:49:12,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:49:12,917 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:49:12,917 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:49:12,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:49:12,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:49:12,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:49:12,918 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:49:12,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:49:12,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:49:12,919 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:49:12,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:49:12,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:49:12,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:49:12,991 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:49:12,991 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:49:12,992 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product33.cil.c [2019-10-03 02:49:13,051 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03260ed40/48968f60b7f044cb8f5d211f4f071470/FLAG3e96b6917 [2019-10-03 02:49:13,665 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:49:13,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product33.cil.c [2019-10-03 02:49:13,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03260ed40/48968f60b7f044cb8f5d211f4f071470/FLAG3e96b6917 [2019-10-03 02:49:13,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03260ed40/48968f60b7f044cb8f5d211f4f071470 [2019-10-03 02:49:13,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:49:13,897 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:49:13,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:49:13,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:49:13,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:49:13,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:49:13" (1/1) ... [2019-10-03 02:49:13,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74819823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:49:13, skipping insertion in model container [2019-10-03 02:49:13,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:49:13" (1/1) ... [2019-10-03 02:49:13,915 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:49:13,988 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:49:14,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:49:14,729 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:49:14,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:49:15,008 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:49:15,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:49:15 WrapperNode [2019-10-03 02:49:15,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:49:15,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:49:15,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:49:15,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:49:15,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:49:15" (1/1) ... [2019-10-03 02:49:15,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:49:15" (1/1) ... [2019-10-03 02:49:15,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:49:15" (1/1) ... [2019-10-03 02:49:15,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:49:15" (1/1) ... [2019-10-03 02:49:15,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:49:15" (1/1) ... [2019-10-03 02:49:15,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:49:15" (1/1) ... [2019-10-03 02:49:15,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:49:15" (1/1) ... [2019-10-03 02:49:15,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:49:15,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:49:15,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:49:15,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:49:15,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:49:15" (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 02:49:15,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:49:15,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:49:15,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:49:15,274 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-03 02:49:15,274 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-03 02:49:15,274 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-03 02:49:15,274 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-03 02:49:15,274 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-03 02:49:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-03 02:49:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-03 02:49:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-03 02:49:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-03 02:49:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-03 02:49:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-03 02:49:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-03 02:49:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-03 02:49:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-03 02:49:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-03 02:49:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-03 02:49:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-03 02:49:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-03 02:49:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-03 02:49:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-03 02:49:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-03 02:49:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-03 02:49:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-03 02:49:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-03 02:49:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-03 02:49:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-03 02:49:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-03 02:49:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-03 02:49:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-03 02:49:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-03 02:49:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-03 02:49:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-03 02:49:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-03 02:49:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-03 02:49:15,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-03 02:49:15,280 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-03 02:49:15,280 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-03 02:49:15,280 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:49:15,280 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:49:15,280 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:49:15,280 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:49:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:49:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-03 02:49:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-03 02:49:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-03 02:49:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-03 02:49:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-03 02:49:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-03 02:49:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-03 02:49:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-03 02:49:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-03 02:49:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-03 02:49:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-03 02:49:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-03 02:49:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-03 02:49:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-03 02:49:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-03 02:49:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-03 02:49:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-03 02:49:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-03 02:49:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-03 02:49:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-03 02:49:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-03 02:49:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-03 02:49:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-03 02:49:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-03 02:49:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-03 02:49:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-03 02:49:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-03 02:49:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-03 02:49:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-03 02:49:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-03 02:49:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-03 02:49:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-03 02:49:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-03 02:49:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-03 02:49:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-03 02:49:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-03 02:49:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-03 02:49:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-03 02:49:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-03 02:49:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-03 02:49:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-03 02:49:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-03 02:49:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-03 02:49:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-03 02:49:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-03 02:49:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:49:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:49:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:49:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:49:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:49:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:49:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-03 02:49:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-03 02:49:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-03 02:49:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-03 02:49:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-03 02:49:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-03 02:49:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-03 02:49:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-03 02:49:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:49:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:49:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-03 02:49:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-03 02:49:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-03 02:49:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-03 02:49:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-03 02:49:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-03 02:49:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-03 02:49:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-03 02:49:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-03 02:49:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-03 02:49:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-03 02:49:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:49:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:49:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:49:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-03 02:49:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-03 02:49:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-03 02:49:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-03 02:49:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-03 02:49:15,293 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-03 02:49:15,293 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-03 02:49:15,293 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-03 02:49:15,293 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-03 02:49:15,293 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-03 02:49:15,293 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-03 02:49:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-03 02:49:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-03 02:49:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-03 02:49:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-03 02:49:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-03 02:49:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-03 02:49:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-03 02:49:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-03 02:49:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-03 02:49:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-03 02:49:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-03 02:49:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-03 02:49:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-03 02:49:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-03 02:49:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-03 02:49:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-03 02:49:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-03 02:49:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-03 02:49:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:49:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-03 02:49:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-03 02:49:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-03 02:49:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-03 02:49:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-03 02:49:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-03 02:49:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-03 02:49:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-03 02:49:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-03 02:49:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-03 02:49:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-03 02:49:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-03 02:49:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-03 02:49:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-03 02:49:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-03 02:49:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:49:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-03 02:49:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-03 02:49:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-03 02:49:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:49:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:49:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:49:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:49:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:49:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-03 02:49:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-03 02:49:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-03 02:49:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-03 02:49:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-03 02:49:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-03 02:49:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-03 02:49:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-03 02:49:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-03 02:49:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-03 02:49:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-03 02:49:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-03 02:49:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-03 02:49:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-03 02:49:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-03 02:49:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-03 02:49:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-03 02:49:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-03 02:49:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-03 02:49:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-03 02:49:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-03 02:49:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-03 02:49:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-03 02:49:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-03 02:49:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-03 02:49:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-03 02:49:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-03 02:49:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-03 02:49:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-03 02:49:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-03 02:49:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-03 02:49:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-03 02:49:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-03 02:49:15,306 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-03 02:49:15,306 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-03 02:49:15,306 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-03 02:49:15,306 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:49:15,306 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:49:15,306 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:49:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:49:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:49:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:49:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:49:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:49:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:49:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:49:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:49:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:49:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:49:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:49:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:49:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:49:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-03 02:49:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-03 02:49:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-03 02:49:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-03 02:49:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-03 02:49:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:49:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:49:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:49:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-03 02:49:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-03 02:49:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-03 02:49:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-03 02:49:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-03 02:49:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-03 02:49:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-03 02:49:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-03 02:49:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-03 02:49:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-03 02:49:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-03 02:49:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-03 02:49:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-03 02:49:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-03 02:49:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:49:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:49:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:49:17,360 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:49:17,361 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 02:49:17,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:49:17 BoogieIcfgContainer [2019-10-03 02:49:17,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:49:17,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:49:17,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:49:17,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:49:17,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:49:13" (1/3) ... [2019-10-03 02:49:17,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@172cb9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:49:17, skipping insertion in model container [2019-10-03 02:49:17,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:49:15" (2/3) ... [2019-10-03 02:49:17,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@172cb9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:49:17, skipping insertion in model container [2019-10-03 02:49:17,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:49:17" (3/3) ... [2019-10-03 02:49:17,373 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product33.cil.c [2019-10-03 02:49:17,382 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:49:17,399 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:49:17,416 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:49:17,456 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:49:17,456 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:49:17,457 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:49:17,457 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:49:17,466 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:49:17,466 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:49:17,466 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:49:17,466 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:49:17,507 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states. [2019-10-03 02:49:17,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-03 02:49:17,552 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:49:17,553 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:17,556 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:49:17,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:49:17,562 INFO L82 PathProgramCache]: Analyzing trace with hash -225515264, now seen corresponding path program 1 times [2019-10-03 02:49:17,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:49:17,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:17,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:49:17,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:17,622 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:49:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:49:18,254 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-03 02:49:18,257 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:49:18,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:49:18,257 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:49:18,265 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:49:18,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:49:18,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:49:18,282 INFO L87 Difference]: Start difference. First operand 587 states. Second operand 2 states. [2019-10-03 02:49:18,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:49:18,378 INFO L93 Difference]: Finished difference Result 573 states and 755 transitions. [2019-10-03 02:49:18,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:49:18,382 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 232 [2019-10-03 02:49:18,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:49:18,423 INFO L225 Difference]: With dead ends: 573 [2019-10-03 02:49:18,423 INFO L226 Difference]: Without dead ends: 564 [2019-10-03 02:49:18,428 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 02:49:18,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2019-10-03 02:49:18,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2019-10-03 02:49:18,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2019-10-03 02:49:18,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 744 transitions. [2019-10-03 02:49:18,564 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 744 transitions. Word has length 232 [2019-10-03 02:49:18,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:49:18,568 INFO L475 AbstractCegarLoop]: Abstraction has 564 states and 744 transitions. [2019-10-03 02:49:18,568 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:49:18,568 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 744 transitions. [2019-10-03 02:49:18,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-03 02:49:18,577 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:49:18,577 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:18,577 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:49:18,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:49:18,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1451432834, now seen corresponding path program 1 times [2019-10-03 02:49:18,579 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:49:18,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:18,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:49:18,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:18,585 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:49:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:49:18,965 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-03 02:49:18,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:49:18,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:49:18,966 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:49:18,971 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:49:18,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:49:18,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:49:18,972 INFO L87 Difference]: Start difference. First operand 564 states and 744 transitions. Second operand 3 states. [2019-10-03 02:49:19,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:49:19,036 INFO L93 Difference]: Finished difference Result 567 states and 747 transitions. [2019-10-03 02:49:19,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:49:19,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-10-03 02:49:19,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:49:19,043 INFO L225 Difference]: With dead ends: 567 [2019-10-03 02:49:19,044 INFO L226 Difference]: Without dead ends: 567 [2019-10-03 02:49:19,044 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 02:49:19,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2019-10-03 02:49:19,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 566. [2019-10-03 02:49:19,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-10-03 02:49:19,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 746 transitions. [2019-10-03 02:49:19,074 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 746 transitions. Word has length 233 [2019-10-03 02:49:19,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:49:19,075 INFO L475 AbstractCegarLoop]: Abstraction has 566 states and 746 transitions. [2019-10-03 02:49:19,076 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:49:19,076 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 746 transitions. [2019-10-03 02:49:19,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-03 02:49:19,083 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:49:19,084 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:19,084 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:49:19,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:49:19,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1811771772, now seen corresponding path program 1 times [2019-10-03 02:49:19,085 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:49:19,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:19,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:49:19,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:19,089 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:49:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:49:19,322 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-03 02:49:19,322 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:49:19,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:49:19,322 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:49:19,323 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:49:19,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:49:19,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:49:19,326 INFO L87 Difference]: Start difference. First operand 566 states and 746 transitions. Second operand 3 states. [2019-10-03 02:49:19,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:49:19,363 INFO L93 Difference]: Finished difference Result 609 states and 819 transitions. [2019-10-03 02:49:19,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:49:19,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2019-10-03 02:49:19,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:49:19,367 INFO L225 Difference]: With dead ends: 609 [2019-10-03 02:49:19,368 INFO L226 Difference]: Without dead ends: 609 [2019-10-03 02:49:19,368 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 02:49:19,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2019-10-03 02:49:19,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 608. [2019-10-03 02:49:19,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2019-10-03 02:49:19,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 818 transitions. [2019-10-03 02:49:19,387 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 818 transitions. Word has length 245 [2019-10-03 02:49:19,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:49:19,388 INFO L475 AbstractCegarLoop]: Abstraction has 608 states and 818 transitions. [2019-10-03 02:49:19,388 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:49:19,388 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 818 transitions. [2019-10-03 02:49:19,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-03 02:49:19,392 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:49:19,393 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:19,393 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:49:19,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:49:19,393 INFO L82 PathProgramCache]: Analyzing trace with hash 2089199776, now seen corresponding path program 1 times [2019-10-03 02:49:19,394 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:49:19,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:19,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:49:19,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:19,398 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:49:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:49:19,631 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-03 02:49:19,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:49:19,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:49:19,632 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:49:19,633 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:49:19,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:49:19,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:49:19,634 INFO L87 Difference]: Start difference. First operand 608 states and 818 transitions. Second operand 3 states. [2019-10-03 02:49:19,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:49:19,661 INFO L93 Difference]: Finished difference Result 690 states and 957 transitions. [2019-10-03 02:49:19,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:49:19,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2019-10-03 02:49:19,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:49:19,666 INFO L225 Difference]: With dead ends: 690 [2019-10-03 02:49:19,666 INFO L226 Difference]: Without dead ends: 690 [2019-10-03 02:49:19,666 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 02:49:19,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2019-10-03 02:49:19,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 689. [2019-10-03 02:49:19,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2019-10-03 02:49:19,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 956 transitions. [2019-10-03 02:49:19,687 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 956 transitions. Word has length 246 [2019-10-03 02:49:19,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:49:19,688 INFO L475 AbstractCegarLoop]: Abstraction has 689 states and 956 transitions. [2019-10-03 02:49:19,688 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:49:19,688 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 956 transitions. [2019-10-03 02:49:19,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-03 02:49:19,693 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:49:19,694 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:19,694 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:49:19,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:49:19,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1330390200, now seen corresponding path program 1 times [2019-10-03 02:49:19,695 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:49:19,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:19,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:49:19,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:19,699 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:49:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:49:20,102 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-03 02:49:20,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:49:20,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-03 02:49:20,102 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:49:20,103 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-03 02:49:20,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-03 02:49:20,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:49:20,104 INFO L87 Difference]: Start difference. First operand 689 states and 956 transitions. Second operand 19 states. [2019-10-03 02:49:25,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:49:25,473 INFO L93 Difference]: Finished difference Result 2027 states and 2818 transitions. [2019-10-03 02:49:25,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-03 02:49:25,473 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 249 [2019-10-03 02:49:25,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:49:25,487 INFO L225 Difference]: With dead ends: 2027 [2019-10-03 02:49:25,487 INFO L226 Difference]: Without dead ends: 2027 [2019-10-03 02:49:25,489 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-03 02:49:25,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2019-10-03 02:49:25,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1990. [2019-10-03 02:49:25,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1990 states. [2019-10-03 02:49:25,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2766 transitions. [2019-10-03 02:49:25,583 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2766 transitions. Word has length 249 [2019-10-03 02:49:25,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:49:25,584 INFO L475 AbstractCegarLoop]: Abstraction has 1990 states and 2766 transitions. [2019-10-03 02:49:25,584 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-03 02:49:25,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2766 transitions. [2019-10-03 02:49:25,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-10-03 02:49:25,593 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:49:25,593 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:25,593 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:49:25,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:49:25,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1816922894, now seen corresponding path program 1 times [2019-10-03 02:49:25,594 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:49:25,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:25,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:49:25,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:25,598 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:49:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:49:25,814 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-03 02:49:25,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:49:25,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-03 02:49:25,815 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:49:25,816 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-03 02:49:25,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-03 02:49:25,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-03 02:49:25,816 INFO L87 Difference]: Start difference. First operand 1990 states and 2766 transitions. Second operand 11 states. [2019-10-03 02:49:26,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:49:26,208 INFO L93 Difference]: Finished difference Result 2064 states and 2880 transitions. [2019-10-03 02:49:26,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-03 02:49:26,209 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 250 [2019-10-03 02:49:26,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:49:26,227 INFO L225 Difference]: With dead ends: 2064 [2019-10-03 02:49:26,227 INFO L226 Difference]: Without dead ends: 2048 [2019-10-03 02:49:26,228 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:49:26,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2019-10-03 02:49:26,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 2048. [2019-10-03 02:49:26,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2048 states. [2019-10-03 02:49:26,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 2859 transitions. [2019-10-03 02:49:26,316 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 2859 transitions. Word has length 250 [2019-10-03 02:49:26,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:49:26,321 INFO L475 AbstractCegarLoop]: Abstraction has 2048 states and 2859 transitions. [2019-10-03 02:49:26,321 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-03 02:49:26,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 2859 transitions. [2019-10-03 02:49:26,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-10-03 02:49:26,333 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:49:26,334 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:26,334 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:49:26,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:49:26,335 INFO L82 PathProgramCache]: Analyzing trace with hash 254235924, now seen corresponding path program 1 times [2019-10-03 02:49:26,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:49:26,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:26,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:49:26,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:26,341 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:49:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:49:26,735 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-03 02:49:26,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:49:26,736 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-03 02:49:26,736 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:49:26,737 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-03 02:49:26,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-03 02:49:26,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-03 02:49:26,738 INFO L87 Difference]: Start difference. First operand 2048 states and 2859 transitions. Second operand 15 states. [2019-10-03 02:49:30,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:49:30,633 INFO L93 Difference]: Finished difference Result 2164 states and 3039 transitions. [2019-10-03 02:49:30,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-03 02:49:30,633 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 250 [2019-10-03 02:49:30,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:49:30,647 INFO L225 Difference]: With dead ends: 2164 [2019-10-03 02:49:30,647 INFO L226 Difference]: Without dead ends: 2164 [2019-10-03 02:49:30,649 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-03 02:49:30,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2019-10-03 02:49:30,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 2122. [2019-10-03 02:49:30,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2122 states. [2019-10-03 02:49:30,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2981 transitions. [2019-10-03 02:49:30,731 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2981 transitions. Word has length 250 [2019-10-03 02:49:30,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:49:30,732 INFO L475 AbstractCegarLoop]: Abstraction has 2122 states and 2981 transitions. [2019-10-03 02:49:30,732 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-03 02:49:30,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2981 transitions. [2019-10-03 02:49:30,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2019-10-03 02:49:30,741 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:49:30,742 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:30,742 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:49:30,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:49:30,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1393485236, now seen corresponding path program 1 times [2019-10-03 02:49:30,743 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:49:30,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:30,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:49:30,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:30,747 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:49:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:49:31,081 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-03 02:49:31,082 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:49:31,082 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-03 02:49:31,082 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:49:31,083 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-03 02:49:31,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-03 02:49:31,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-03 02:49:31,084 INFO L87 Difference]: Start difference. First operand 2122 states and 2981 transitions. Second operand 15 states. [2019-10-03 02:49:35,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:49:35,117 INFO L93 Difference]: Finished difference Result 2164 states and 3041 transitions. [2019-10-03 02:49:35,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-03 02:49:35,118 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 251 [2019-10-03 02:49:35,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:49:35,167 INFO L225 Difference]: With dead ends: 2164 [2019-10-03 02:49:35,167 INFO L226 Difference]: Without dead ends: 2164 [2019-10-03 02:49:35,168 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-03 02:49:35,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2019-10-03 02:49:35,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 2122. [2019-10-03 02:49:35,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2122 states. [2019-10-03 02:49:35,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2981 transitions. [2019-10-03 02:49:35,252 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2981 transitions. Word has length 251 [2019-10-03 02:49:35,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:49:35,253 INFO L475 AbstractCegarLoop]: Abstraction has 2122 states and 2981 transitions. [2019-10-03 02:49:35,253 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-03 02:49:35,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2981 transitions. [2019-10-03 02:49:35,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-10-03 02:49:35,263 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:49:35,263 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:35,264 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:49:35,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:49:35,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1117860735, now seen corresponding path program 1 times [2019-10-03 02:49:35,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:49:35,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:35,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:49:35,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:49:35,269 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:49:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:49:35,433 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-03 02:49:35,434 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:49:35,434 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:49:35,435 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2019-10-03 02:49:35,438 INFO L207 CegarAbsIntRunner]: [44], [47], [50], [72], [75], [85], [130], [159], [162], [163], [164], [166], [276], [278], [282], [285], [286], [287], [291], [294], [296], [318], [321], [327], [329], [332], [334], [336], [343], [347], [349], [360], [363], [372], [373], [375], [378], [382], [383], [385], [386], [389], [399], [400], [401], [428], [430], [442], [464], [466], [486], [565], [661], [663], [664], [665], [683], [685], [690], [714], [717], [731], [770], [771], [772], [774], [787], [789], [792], [796], [820], [824], [827], [835], [838], [862], [865], [875], [876], [878], [903], [909], [918], [922], [924], [926], [929], [936], [943], [946], [948], [1084], [1087], [1101], [1209], [1281], [1285], [1296], [1299], [1300], [1303], [1307], [1310], [1337], [1338], [1340], [1409], [1412], [1422], [1423], [1426], [1432], [1453], [1456], [1470], [1476], [1479], [1481], [1484], [1488], [1677], [1679], [1681], [1683], [1684], [1696], [1697], [1698], [1699], [1700], [1701], [1702], [1720], [1730], [1731], [1732], [1733], [1734], [1735], [1738], [1739], [1740], [1741], [1742], [1744], [1745], [1746], [1747], [1754], [1755], [1756], [1757], [1760], [1761], [1762], [1763], [1768], [1770], [1771], [1776], [1777], [1780], [1781], [1786], [1787], [1800], [1801], [1802], [1803], [1804], [1812], [1828], [1829], [1838], [1839], [1840], [1848], [1849], [1850], [1852], [1853], [1858], [1859], [1860], [1861], [1862], [1863], [1864], [1865], [1866], [1868], [1869], [1870], [1871], [1892], [1893], [1904], [1910], [1911], [1928], [1930], [1931], [1932], [1934], [1935], [1936], [1937], [1938], [1939], [1940], [1952], [1953], [1954], [1955], [1956], [1957], [1958], [1959], [1960] [2019-10-03 02:49:35,510 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:49:35,510 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:49:35,722 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:49:35,724 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 268 root evaluator evaluations with a maximum evaluation depth of 0. Performed 268 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 376 variables. [2019-10-03 02:49:35,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:49:35,729 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:49:35,848 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:49:35,849 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:49:35,862 INFO L420 sIntCurrentIteration]: We unified 252 AI predicates to 252 [2019-10-03 02:49:35,862 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:49:35,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:49:35,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2019-10-03 02:49:35,863 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:49:35,864 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:49:35,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:49:35,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:49:35,865 INFO L87 Difference]: Start difference. First operand 2122 states and 2981 transitions. Second operand 2 states. [2019-10-03 02:49:35,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:49:35,866 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:49:35,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:49:35,866 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 253 [2019-10-03 02:49:35,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:49:35,866 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:49:35,867 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:49:35,867 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 252 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 02:49:35,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:49:35,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:49:35,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:49:35,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:49:35,868 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 253 [2019-10-03 02:49:35,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:49:35,868 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:49:35,868 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:49:35,868 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:49:35,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:49:35,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:49:35 BoogieIcfgContainer [2019-10-03 02:49:35,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:49:35,878 INFO L168 Benchmark]: Toolchain (without parser) took 21978.65 ms. Allocated memory was 140.5 MB in the beginning and 630.7 MB in the end (delta: 490.2 MB). Free memory was 85.5 MB in the beginning and 389.9 MB in the end (delta: -304.4 MB). Peak memory consumption was 185.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:49:35,879 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory is still 106.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:49:35,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1111.42 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 85.0 MB in the beginning and 129.1 MB in the end (delta: -44.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:49:35,881 INFO L168 Benchmark]: Boogie Preprocessor took 186.09 ms. Allocated memory is still 201.9 MB. Free memory was 129.1 MB in the beginning and 120.6 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:49:35,883 INFO L168 Benchmark]: RCFGBuilder took 2166.72 ms. Allocated memory was 201.9 MB in the beginning and 266.9 MB in the end (delta: 65.0 MB). Free memory was 119.7 MB in the beginning and 150.0 MB in the end (delta: -30.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:49:35,890 INFO L168 Benchmark]: TraceAbstraction took 18510.20 ms. Allocated memory was 266.9 MB in the beginning and 630.7 MB in the end (delta: 363.9 MB). Free memory was 150.0 MB in the beginning and 389.9 MB in the end (delta: -239.9 MB). Peak memory consumption was 124.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:49:35,897 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory is still 106.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1111.42 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 85.0 MB in the beginning and 129.1 MB in the end (delta: -44.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 186.09 ms. Allocated memory is still 201.9 MB. Free memory was 129.1 MB in the beginning and 120.6 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2166.72 ms. Allocated memory was 201.9 MB in the beginning and 266.9 MB in the end (delta: 65.0 MB). Free memory was 119.7 MB in the beginning and 150.0 MB in the end (delta: -30.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18510.20 ms. Allocated memory was 266.9 MB in the beginning and 630.7 MB in the end (delta: 363.9 MB). Free memory was 150.0 MB in the beginning and 389.9 MB in the end (delta: -239.9 MB). Peak memory consumption was 124.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1321]: 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 118 procedures, 809 locations, 1 error locations. SAFE Result, 18.4s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 14.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7640 SDtfs, 7171 SDslu, 52231 SDs, 0 SdLazy, 9280 SolverSat, 1872 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 466 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1758 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2122occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.9722222222222223 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 124 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2209 NumberOfCodeBlocks, 2209 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2200 ConstructedInterpolants, 0 QuantifiedInterpolants, 682266 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 462/465 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...