java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:41:26,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:41:26,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:41:26,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:41:26,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:41:26,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:41:26,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:41:26,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:41:26,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:41:26,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:41:26,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:41:26,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:41:26,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:41:26,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:41:26,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:41:26,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:41:26,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:41:26,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:41:26,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:41:26,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:41:26,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:41:26,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:41:26,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:41:26,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:41:26,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:41:26,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:41:26,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:41:26,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:41:26,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:41:26,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:41:26,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:41:26,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:41:26,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:41:26,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:41:26,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:41:26,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:41:26,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:41:26,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:41:26,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:41:26,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:41:26,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:41:26,738 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:41:26,753 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:41:26,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:41:26,753 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:41:26,754 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:41:26,754 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:41:26,755 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:41:26,755 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:41:26,755 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:41:26,755 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:41:26,755 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:41:26,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:41:26,756 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:41:26,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:41:26,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:41:26,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:41:26,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:41:26,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:41:26,757 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:41:26,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:41:26,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:41:26,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:41:26,758 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:41:26,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:41:26,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:41:26,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:41:26,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:41:26,759 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:41:26,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:41:26,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:41:26,760 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:41:26,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:41:26,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:41:26,804 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:41:26,806 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:41:26,807 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:41:26,807 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product29.cil.c [2019-09-10 02:41:26,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99905a462/7f72a833a3b9474cb2c5a9aed9504d4f/FLAGc702d07bc [2019-09-10 02:41:27,513 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:41:27,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product29.cil.c [2019-09-10 02:41:27,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99905a462/7f72a833a3b9474cb2c5a9aed9504d4f/FLAGc702d07bc [2019-09-10 02:41:27,663 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99905a462/7f72a833a3b9474cb2c5a9aed9504d4f [2019-09-10 02:41:27,672 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:41:27,673 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:41:27,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:41:27,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:41:27,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:41:27,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:41:27" (1/1) ... [2019-09-10 02:41:27,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c6119c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:27, skipping insertion in model container [2019-09-10 02:41:27,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:41:27" (1/1) ... [2019-09-10 02:41:27,691 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:41:27,771 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:41:28,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:41:28,710 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:41:28,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:41:28,950 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:41:28,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:28 WrapperNode [2019-09-10 02:41:28,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:41:28,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:41:28,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:41:28,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:41:28,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:28" (1/1) ... [2019-09-10 02:41:28,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:28" (1/1) ... [2019-09-10 02:41:29,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:28" (1/1) ... [2019-09-10 02:41:29,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:28" (1/1) ... [2019-09-10 02:41:29,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:28" (1/1) ... [2019-09-10 02:41:29,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:28" (1/1) ... [2019-09-10 02:41:29,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:28" (1/1) ... [2019-09-10 02:41:29,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:41:29,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:41:29,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:41:29,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:41:29,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:41:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:41:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:41:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:41:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-10 02:41:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-10 02:41:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-10 02:41:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-10 02:41:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-10 02:41:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-10 02:41:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-10 02:41:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-10 02:41:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:41:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:41:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-10 02:41:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-10 02:41:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-10 02:41:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-10 02:41:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-10 02:41:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-10 02:41:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-10 02:41:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-10 02:41:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-10 02:41:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-09-10 02:41:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:41:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:41:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:41:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:41:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:41:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:41:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-09-10 02:41:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-09-10 02:41:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-09-10 02:41:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-10 02:41:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-09-10 02:41:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-10 02:41:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-10 02:41:29,257 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-10 02:41:29,257 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-10 02:41:29,257 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-10 02:41:29,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-10 02:41:29,257 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-10 02:41:29,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-10 02:41:29,257 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-10 02:41:29,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-10 02:41:29,258 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-10 02:41:29,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-10 02:41:29,258 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-10 02:41:29,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-10 02:41:29,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-10 02:41:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-10 02:41:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-10 02:41:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-10 02:41:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-10 02:41:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-10 02:41:29,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-10 02:41:29,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-10 02:41:29,260 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-10 02:41:29,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-10 02:41:29,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-10 02:41:29,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-10 02:41:29,261 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-10 02:41:29,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-10 02:41:29,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-10 02:41:29,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-10 02:41:29,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-10 02:41:29,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-10 02:41:29,262 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:41:29,262 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:41:29,262 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:41:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:41:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-10 02:41:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-10 02:41:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-10 02:41:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-10 02:41:29,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-10 02:41:29,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-10 02:41:29,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-10 02:41:29,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-10 02:41:29,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-10 02:41:29,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-10 02:41:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-10 02:41:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-10 02:41:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-10 02:41:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-10 02:41:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-10 02:41:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-10 02:41:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-10 02:41:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-10 02:41:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-10 02:41:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-10 02:41:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-10 02:41:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-10 02:41:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:41:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:41:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-09-10 02:41:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-10 02:41:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-10 02:41:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-09-10 02:41:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-09-10 02:41:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-10 02:41:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-10 02:41:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-10 02:41:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-09-10 02:41:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-10 02:41:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-10 02:41:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-10 02:41:29,269 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-10 02:41:29,269 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-10 02:41:29,269 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-10 02:41:29,269 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-10 02:41:29,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-10 02:41:29,269 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-10 02:41:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-09-10 02:41:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-10 02:41:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-10 02:41:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:41:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:41:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:41:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-10 02:41:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-10 02:41:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-10 02:41:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-10 02:41:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-10 02:41:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-10 02:41:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-10 02:41:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-10 02:41:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-10 02:41:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-10 02:41:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-10 02:41:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:41:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:41:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:41:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-10 02:41:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-10 02:41:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-10 02:41:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-10 02:41:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-10 02:41:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-10 02:41:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-10 02:41:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-10 02:41:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-10 02:41:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-10 02:41:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-10 02:41:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:41:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:41:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:41:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-10 02:41:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-10 02:41:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-10 02:41:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-10 02:41:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-10 02:41:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-10 02:41:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-10 02:41:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-10 02:41:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-10 02:41:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-09-10 02:41:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-10 02:41:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-10 02:41:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-10 02:41:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:41:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:41:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:41:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:41:29,277 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:41:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:41:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:41:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:41:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:41:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:41:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:41:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:41:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:41:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:41:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:41:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:41:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:41:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-10 02:41:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-10 02:41:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-10 02:41:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-10 02:41:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-10 02:41:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-10 02:41:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-10 02:41:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-10 02:41:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-10 02:41:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-10 02:41:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-10 02:41:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-10 02:41:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-10 02:41:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-10 02:41:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-09-10 02:41:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-09-10 02:41:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-09-10 02:41:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-09-10 02:41:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-10 02:41:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-10 02:41:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-10 02:41:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-10 02:41:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-10 02:41:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-10 02:41:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-10 02:41:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-10 02:41:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-10 02:41:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-10 02:41:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-10 02:41:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-10 02:41:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-10 02:41:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-10 02:41:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-10 02:41:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-10 02:41:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-10 02:41:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-10 02:41:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-10 02:41:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:41:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-10 02:41:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-10 02:41:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-10 02:41:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-10 02:41:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-10 02:41:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-10 02:41:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-10 02:41:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-10 02:41:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-10 02:41:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-10 02:41:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-10 02:41:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-10 02:41:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:41:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-09-10 02:41:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-10 02:41:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-10 02:41:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-10 02:41:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-10 02:41:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-10 02:41:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-10 02:41:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-09-10 02:41:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-10 02:41:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-10 02:41:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-10 02:41:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-09-10 02:41:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-09-10 02:41:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-10 02:41:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-09-10 02:41:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:41:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:41:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:41:31,516 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:41:31,517 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 02:41:31,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:41:31 BoogieIcfgContainer [2019-09-10 02:41:31,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:41:31,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:41:31,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:41:31,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:41:31,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:41:27" (1/3) ... [2019-09-10 02:41:31,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7057337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:41:31, skipping insertion in model container [2019-09-10 02:41:31,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:28" (2/3) ... [2019-09-10 02:41:31,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7057337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:41:31, skipping insertion in model container [2019-09-10 02:41:31,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:41:31" (3/3) ... [2019-09-10 02:41:31,528 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product29.cil.c [2019-09-10 02:41:31,539 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:41:31,549 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:41:31,567 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:41:31,597 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:41:31,598 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:41:31,598 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:41:31,598 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:41:31,598 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:41:31,598 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:41:31,602 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:41:31,602 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:41:31,646 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states. [2019-09-10 02:41:31,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-09-10 02:41:31,691 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:31,695 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:31,700 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:31,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:31,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1933710850, now seen corresponding path program 1 times [2019-09-10 02:41:31,709 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:31,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:31,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:31,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:31,768 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:32,394 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:32,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:32,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:41:32,397 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:32,403 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:41:32,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:41:32,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:32,422 INFO L87 Difference]: Start difference. First operand 602 states. Second operand 2 states. [2019-09-10 02:41:32,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:32,485 INFO L93 Difference]: Finished difference Result 554 states and 759 transitions. [2019-09-10 02:41:32,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:41:32,487 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 173 [2019-09-10 02:41:32,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:32,515 INFO L225 Difference]: With dead ends: 554 [2019-09-10 02:41:32,515 INFO L226 Difference]: Without dead ends: 545 [2019-09-10 02:41:32,518 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:32,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2019-09-10 02:41:32,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2019-09-10 02:41:32,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2019-09-10 02:41:32,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 748 transitions. [2019-09-10 02:41:32,631 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 748 transitions. Word has length 173 [2019-09-10 02:41:32,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:32,634 INFO L475 AbstractCegarLoop]: Abstraction has 545 states and 748 transitions. [2019-09-10 02:41:32,634 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:41:32,634 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 748 transitions. [2019-09-10 02:41:32,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-09-10 02:41:32,644 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:32,645 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:32,645 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:32,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:32,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1848846547, now seen corresponding path program 1 times [2019-09-10 02:41:32,648 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:32,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:32,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:32,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:32,650 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:32,910 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:32,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:32,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:41:32,911 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:32,913 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:41:32,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:41:32,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:32,914 INFO L87 Difference]: Start difference. First operand 545 states and 748 transitions. Second operand 3 states. [2019-09-10 02:41:32,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:32,978 INFO L93 Difference]: Finished difference Result 548 states and 751 transitions. [2019-09-10 02:41:32,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:41:32,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-09-10 02:41:32,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:32,989 INFO L225 Difference]: With dead ends: 548 [2019-09-10 02:41:32,989 INFO L226 Difference]: Without dead ends: 548 [2019-09-10 02:41:32,990 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:32,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2019-09-10 02:41:33,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 547. [2019-09-10 02:41:33,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2019-09-10 02:41:33,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 750 transitions. [2019-09-10 02:41:33,052 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 750 transitions. Word has length 174 [2019-09-10 02:41:33,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:33,054 INFO L475 AbstractCegarLoop]: Abstraction has 547 states and 750 transitions. [2019-09-10 02:41:33,054 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:41:33,054 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 750 transitions. [2019-09-10 02:41:33,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-09-10 02:41:33,058 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:33,059 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:33,059 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:33,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:33,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1241537791, now seen corresponding path program 1 times [2019-09-10 02:41:33,060 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:33,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:33,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:33,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:33,061 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:33,300 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:33,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:33,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:41:33,301 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:33,303 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:41:33,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:41:33,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:33,306 INFO L87 Difference]: Start difference. First operand 547 states and 750 transitions. Second operand 3 states. [2019-09-10 02:41:33,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:33,338 INFO L93 Difference]: Finished difference Result 588 states and 820 transitions. [2019-09-10 02:41:33,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:41:33,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-09-10 02:41:33,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:33,347 INFO L225 Difference]: With dead ends: 588 [2019-09-10 02:41:33,347 INFO L226 Difference]: Without dead ends: 588 [2019-09-10 02:41:33,348 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:33,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2019-09-10 02:41:33,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 587. [2019-09-10 02:41:33,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2019-09-10 02:41:33,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 819 transitions. [2019-09-10 02:41:33,382 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 819 transitions. Word has length 180 [2019-09-10 02:41:33,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:33,385 INFO L475 AbstractCegarLoop]: Abstraction has 587 states and 819 transitions. [2019-09-10 02:41:33,385 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:41:33,385 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 819 transitions. [2019-09-10 02:41:33,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-09-10 02:41:33,392 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:33,393 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:33,393 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:33,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:33,394 INFO L82 PathProgramCache]: Analyzing trace with hash -2124332308, now seen corresponding path program 1 times [2019-09-10 02:41:33,394 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:33,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:33,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:33,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:33,396 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:33,667 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-10 02:41:33,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:33,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:41:33,667 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:33,668 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:41:33,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:41:33,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:41:33,669 INFO L87 Difference]: Start difference. First operand 587 states and 819 transitions. Second operand 7 states. [2019-09-10 02:41:37,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:37,214 INFO L93 Difference]: Finished difference Result 872 states and 1193 transitions. [2019-09-10 02:41:37,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:41:37,216 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2019-09-10 02:41:37,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:37,224 INFO L225 Difference]: With dead ends: 872 [2019-09-10 02:41:37,224 INFO L226 Difference]: Without dead ends: 870 [2019-09-10 02:41:37,224 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:41:37,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-09-10 02:41:37,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 861. [2019-09-10 02:41:37,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2019-09-10 02:41:37,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1182 transitions. [2019-09-10 02:41:37,259 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1182 transitions. Word has length 181 [2019-09-10 02:41:37,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:37,260 INFO L475 AbstractCegarLoop]: Abstraction has 861 states and 1182 transitions. [2019-09-10 02:41:37,260 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:41:37,260 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1182 transitions. [2019-09-10 02:41:37,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-09-10 02:41:37,264 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:37,265 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:37,265 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:37,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:37,265 INFO L82 PathProgramCache]: Analyzing trace with hash 176199948, now seen corresponding path program 1 times [2019-09-10 02:41:37,266 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:37,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:37,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:37,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:37,267 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:37,718 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-10 02:41:37,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:37,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-09-10 02:41:37,720 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:37,720 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 02:41:37,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 02:41:37,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-09-10 02:41:37,722 INFO L87 Difference]: Start difference. First operand 861 states and 1182 transitions. Second operand 20 states. [2019-09-10 02:41:38,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:38,270 INFO L93 Difference]: Finished difference Result 979 states and 1345 transitions. [2019-09-10 02:41:38,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-10 02:41:38,270 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 182 [2019-09-10 02:41:38,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:38,278 INFO L225 Difference]: With dead ends: 979 [2019-09-10 02:41:38,278 INFO L226 Difference]: Without dead ends: 971 [2019-09-10 02:41:38,279 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-09-10 02:41:38,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2019-09-10 02:41:38,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 969. [2019-09-10 02:41:38,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 969 states. [2019-09-10 02:41:38,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1333 transitions. [2019-09-10 02:41:38,328 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1333 transitions. Word has length 182 [2019-09-10 02:41:38,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:38,330 INFO L475 AbstractCegarLoop]: Abstraction has 969 states and 1333 transitions. [2019-09-10 02:41:38,330 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 02:41:38,330 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1333 transitions. [2019-09-10 02:41:38,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-09-10 02:41:38,334 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:38,335 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:38,335 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:38,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:38,335 INFO L82 PathProgramCache]: Analyzing trace with hash -427472189, now seen corresponding path program 1 times [2019-09-10 02:41:38,336 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:38,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:38,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:38,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:38,337 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:38,607 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-10 02:41:38,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:38,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:41:38,608 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:38,608 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:41:38,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:41:38,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:41:38,609 INFO L87 Difference]: Start difference. First operand 969 states and 1333 transitions. Second operand 8 states. [2019-09-10 02:41:39,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:39,778 INFO L93 Difference]: Finished difference Result 1665 states and 2270 transitions. [2019-09-10 02:41:39,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 02:41:39,779 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2019-09-10 02:41:39,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:39,793 INFO L225 Difference]: With dead ends: 1665 [2019-09-10 02:41:39,793 INFO L226 Difference]: Without dead ends: 1665 [2019-09-10 02:41:39,794 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:41:39,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2019-09-10 02:41:39,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1646. [2019-09-10 02:41:39,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2019-09-10 02:41:39,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2251 transitions. [2019-09-10 02:41:39,872 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2251 transitions. Word has length 191 [2019-09-10 02:41:39,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:39,875 INFO L475 AbstractCegarLoop]: Abstraction has 1646 states and 2251 transitions. [2019-09-10 02:41:39,875 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:41:39,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2251 transitions. [2019-09-10 02:41:39,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-09-10 02:41:39,880 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:39,881 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:39,881 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:39,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:39,882 INFO L82 PathProgramCache]: Analyzing trace with hash 304313995, now seen corresponding path program 1 times [2019-09-10 02:41:39,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:39,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:39,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:39,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:39,886 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:40,256 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-10 02:41:40,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:40,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-10 02:41:40,257 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:40,257 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 02:41:40,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 02:41:40,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2019-09-10 02:41:40,258 INFO L87 Difference]: Start difference. First operand 1646 states and 2251 transitions. Second operand 19 states. [2019-09-10 02:41:41,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:41,415 INFO L93 Difference]: Finished difference Result 1645 states and 2247 transitions. [2019-09-10 02:41:41,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-10 02:41:41,415 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 192 [2019-09-10 02:41:41,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:41,434 INFO L225 Difference]: With dead ends: 1645 [2019-09-10 02:41:41,434 INFO L226 Difference]: Without dead ends: 1645 [2019-09-10 02:41:41,435 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2019-09-10 02:41:41,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2019-09-10 02:41:41,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1644. [2019-09-10 02:41:41,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1644 states. [2019-09-10 02:41:41,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2246 transitions. [2019-09-10 02:41:41,497 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2246 transitions. Word has length 192 [2019-09-10 02:41:41,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:41,497 INFO L475 AbstractCegarLoop]: Abstraction has 1644 states and 2246 transitions. [2019-09-10 02:41:41,500 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 02:41:41,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2246 transitions. [2019-09-10 02:41:41,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-09-10 02:41:41,505 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:41,505 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:41,505 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:41,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:41,506 INFO L82 PathProgramCache]: Analyzing trace with hash 383856407, now seen corresponding path program 2 times [2019-09-10 02:41:41,506 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:41,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:41,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:41,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:41,507 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:41,711 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-10 02:41:41,712 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:41,712 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:41:41,712 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:41:41,714 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:41:41,714 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:41,714 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:41:41,738 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 02:41:41,738 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-09-10 02:41:42,131 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-09-10 02:41:42,131 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:41:42,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 2125 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-10 02:41:42,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:41:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-10 02:41:42,465 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:41:42,971 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-10 02:41:42,979 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:41:42,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-09-10 02:41:42,980 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:42,980 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:41:42,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:41:42,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-09-10 02:41:42,981 INFO L87 Difference]: Start difference. First operand 1644 states and 2246 transitions. Second operand 8 states. [2019-09-10 02:41:43,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:43,957 INFO L93 Difference]: Finished difference Result 3256 states and 4467 transitions. [2019-09-10 02:41:43,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 02:41:43,957 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 192 [2019-09-10 02:41:43,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:43,978 INFO L225 Difference]: With dead ends: 3256 [2019-09-10 02:41:43,978 INFO L226 Difference]: Without dead ends: 3256 [2019-09-10 02:41:43,979 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 373 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2019-09-10 02:41:43,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3256 states. [2019-09-10 02:41:44,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3256 to 3241. [2019-09-10 02:41:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3241 states. [2019-09-10 02:41:44,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 4453 transitions. [2019-09-10 02:41:44,123 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 4453 transitions. Word has length 192 [2019-09-10 02:41:44,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:44,123 INFO L475 AbstractCegarLoop]: Abstraction has 3241 states and 4453 transitions. [2019-09-10 02:41:44,123 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:41:44,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 4453 transitions. [2019-09-10 02:41:44,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-09-10 02:41:44,132 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:44,132 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:44,132 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:44,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:44,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1328447174, now seen corresponding path program 1 times [2019-09-10 02:41:44,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:44,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:44,134 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:41:44,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:44,134 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:44,515 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-10 02:41:44,516 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:44,516 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:41:44,517 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2019-09-10 02:41:44,519 INFO L207 CegarAbsIntRunner]: [66], [69], [70], [73], [79], [80], [83], [92], [103], [106], [116], [117], [133], [136], [150], [151], [153], [263], [265], [269], [272], [273], [274], [277], [283], [310], [313], [322], [343], [345], [346], [349], [359], [620], [622], [623], [624], [660], [663], [677], [706], [707], [708], [711], [717], [718], [735], [737], [741], [744], [758], [762], [765], [783], [786], [844], [853], [857], [859], [861], [864], [871], [878], [881], [1017], [1019], [1036], [1114], [1116], [1119], [1121], [1124], [1184], [1238], [1260], [1271], [1274], [1275], [1278], [1281], [1312], [1313], [1315], [1317], [1324], [1330], [1332], [1445], [1448], [1450], [1453], [1462], [1468], [1471], [1480], [1534], [1537], [1546], [1674], [1676], [1678], [1680], [1681], [1709], [1719], [1720], [1721], [1722], [1723], [1724], [1727], [1728], [1729], [1730], [1731], [1733], [1734], [1735], [1736], [1753], [1754], [1799], [1800], [1813], [1819], [1820], [1821], [1822], [1823], [1824], [1825], [1826], [1827], [1828], [1829], [1830], [1831], [1832], [1833], [1835], [1836], [1837], [1838], [1881], [1883], [1884], [1901], [1903], [1904], [1905], [1906], [1907], [1909], [1910], [1911], [1913], [1914], [1915], [1916], [1917], [1918], [1919], [1920], [1925], [1927], [1928], [1929], [1949], [1950], [1951], [1952], [1953], [1954], [1955], [1956], [1957] [2019-09-10 02:41:44,579 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:41:44,580 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:41:44,739 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:41:44,741 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 205 root evaluator evaluations with a maximum evaluation depth of 0. Performed 205 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 376 variables. [2019-09-10 02:41:44,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:44,746 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:41:44,870 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:41:44,870 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:41:44,874 INFO L420 sIntCurrentIteration]: We unified 192 AI predicates to 192 [2019-09-10 02:41:44,875 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:41:44,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:41:44,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-10 02:41:44,876 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:44,879 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:41:44,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:41:44,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:44,879 INFO L87 Difference]: Start difference. First operand 3241 states and 4453 transitions. Second operand 2 states. [2019-09-10 02:41:44,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:44,880 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:41:44,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:41:44,880 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 193 [2019-09-10 02:41:44,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:44,881 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:41:44,881 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:41:44,882 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:44,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:41:44,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:41:44,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:41:44,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:41:44,883 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 193 [2019-09-10 02:41:44,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:44,883 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:41:44,883 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:41:44,883 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:41:44,884 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:41:44,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:41:44 BoogieIcfgContainer [2019-09-10 02:41:44,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:41:44,892 INFO L168 Benchmark]: Toolchain (without parser) took 17218.08 ms. Allocated memory was 137.4 MB in the beginning and 508.0 MB in the end (delta: 370.7 MB). Free memory was 91.0 MB in the beginning and 362.2 MB in the end (delta: -271.3 MB). Peak memory consumption was 99.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:44,893 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory is still 111.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:41:44,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1276.42 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 91.0 MB in the beginning and 131.0 MB in the end (delta: -40.0 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:44,895 INFO L168 Benchmark]: Boogie Preprocessor took 219.13 ms. Allocated memory is still 200.8 MB. Free memory was 131.0 MB in the beginning and 121.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:44,896 INFO L168 Benchmark]: RCFGBuilder took 2348.36 ms. Allocated memory was 200.8 MB in the beginning and 254.3 MB in the end (delta: 53.5 MB). Free memory was 121.9 MB in the beginning and 137.2 MB in the end (delta: -15.2 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:44,897 INFO L168 Benchmark]: TraceAbstraction took 13369.68 ms. Allocated memory was 254.3 MB in the beginning and 508.0 MB in the end (delta: 253.8 MB). Free memory was 135.1 MB in the beginning and 362.2 MB in the end (delta: -227.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:44,900 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory is still 111.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1276.42 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 91.0 MB in the beginning and 131.0 MB in the end (delta: -40.0 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 219.13 ms. Allocated memory is still 200.8 MB. Free memory was 131.0 MB in the beginning and 121.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2348.36 ms. Allocated memory was 200.8 MB in the beginning and 254.3 MB in the end (delta: 53.5 MB). Free memory was 121.9 MB in the beginning and 137.2 MB in the end (delta: -15.2 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13369.68 ms. Allocated memory was 254.3 MB in the beginning and 508.0 MB in the end (delta: 253.8 MB). Free memory was 135.1 MB in the beginning and 362.2 MB in the end (delta: -227.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2617]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 115 procedures, 803 locations, 1 error locations. SAFE Result, 13.3s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 7.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6315 SDtfs, 3012 SDslu, 36620 SDs, 0 SdLazy, 4897 SolverSat, 577 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 700 GetRequests, 588 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3241occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.2135416666666665 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 48 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1850 NumberOfCodeBlocks, 1734 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2031 ConstructedInterpolants, 0 QuantifiedInterpolants, 561458 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2125 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 364/370 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...