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_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:41:15,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:41:15,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:41:15,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:41:15,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:41:15,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:41:15,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:41:15,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:41:15,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:41:15,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:41:15,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:41:15,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:41:15,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:41:15,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:41:15,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:41:15,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:41:15,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:41:15,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:41:15,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:41:15,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:41:15,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:41:15,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:41:15,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:41:15,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:41:15,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:41:15,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:41:15,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:41:15,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:41:15,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:41:15,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:41:15,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:41:15,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:41:15,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:41:15,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:41:15,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:41:15,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:41:15,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:41:15,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:41:15,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:41:15,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:41:15,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:41:15,904 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 02:41:15,919 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:41:15,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:41:15,920 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:41:15,920 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:41:15,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:41:15,921 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:41:15,922 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:41:15,922 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:41:15,922 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:41:15,922 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:41:15,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:41:15,923 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:41:15,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:41:15,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:41:15,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:41:15,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:41:15,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:41:15,924 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:41:15,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:41:15,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:41:15,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:41:15,925 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:41:15,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:41:15,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:41:15,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:41:15,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:41:15,926 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:41:15,927 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:41:15,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:41:15,927 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:41:15,956 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:41:15,969 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:41:15,972 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:41:15,974 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:41:15,974 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:41:15,975 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product13.cil.c [2019-09-10 02:41:16,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/574571219/f6ac3884f2574ae4879cb7437966a71d/FLAG799335810 [2019-09-10 02:41:16,664 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:41:16,664 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product13.cil.c [2019-09-10 02:41:16,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/574571219/f6ac3884f2574ae4879cb7437966a71d/FLAG799335810 [2019-09-10 02:41:16,844 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/574571219/f6ac3884f2574ae4879cb7437966a71d [2019-09-10 02:41:16,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:41:16,860 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:41:16,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:41:16,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:41:16,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:41:16,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:41:16" (1/1) ... [2019-09-10 02:41:16,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749328bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:16, skipping insertion in model container [2019-09-10 02:41:16,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:41:16" (1/1) ... [2019-09-10 02:41:16,887 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:41:16,973 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:41:17,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:41:17,725 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:41:17,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:41:17,941 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:41:17,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:17 WrapperNode [2019-09-10 02:41:17,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:41:17,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:41:17,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:41:17,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:41:17,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:17" (1/1) ... [2019-09-10 02:41:17,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:17" (1/1) ... [2019-09-10 02:41:17,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:17" (1/1) ... [2019-09-10 02:41:17,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:17" (1/1) ... [2019-09-10 02:41:18,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:17" (1/1) ... [2019-09-10 02:41:18,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:17" (1/1) ... [2019-09-10 02:41:18,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:17" (1/1) ... [2019-09-10 02:41:18,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:41:18,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:41:18,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:41:18,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:41:18,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:17" (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 02:41:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:41:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:41:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:41:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-09-10 02:41:18,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:41:18,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:41:18,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:41:18,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:41:18,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:41:18,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:41:18,184 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-10 02:41:18,184 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:41:18,184 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:41:18,184 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:41:18,185 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:41:18,185 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-10 02:41:18,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-10 02:41:18,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-10 02:41:18,186 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-10 02:41:18,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-10 02:41:18,186 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-10 02:41:18,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-10 02:41:18,186 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-10 02:41:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-10 02:41:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-10 02:41:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-10 02:41:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-10 02:41:18,188 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-10 02:41:18,188 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-10 02:41:18,188 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-10 02:41:18,188 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-10 02:41:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-10 02:41:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-10 02:41:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-10 02:41:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-10 02:41:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-10 02:41:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-10 02:41:18,190 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-10 02:41:18,190 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-10 02:41:18,190 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-10 02:41:18,190 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-10 02:41:18,190 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-10 02:41:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-10 02:41:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-10 02:41:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-10 02:41:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-10 02:41:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-10 02:41:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-10 02:41:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-10 02:41:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-10 02:41:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-10 02:41:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-10 02:41:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:41:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:41:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-10 02:41:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-10 02:41:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-10 02:41:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-10 02:41:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-10 02:41:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-10 02:41:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-10 02:41:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-10 02:41:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-10 02:41:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:41:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:41:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-10 02:41:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-10 02:41:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-10 02:41:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-10 02:41:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-10 02:41:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-10 02:41:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-10 02:41:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-10 02:41:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-10 02:41:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-10 02:41:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-10 02:41:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-10 02:41:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-10 02:41:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-10 02:41:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-10 02:41:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-10 02:41:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-10 02:41:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-10 02:41:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-10 02:41:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-10 02:41:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-10 02:41:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-10 02:41:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-10 02:41:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-10 02:41:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-10 02:41:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-10 02:41:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-10 02:41:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-10 02:41:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-10 02:41:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-10 02:41:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-10 02:41:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-10 02:41:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-10 02:41:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-10 02:41:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-10 02:41:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-10 02:41:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-10 02:41:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-09-10 02:41:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-09-10 02:41:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-10 02:41:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-10 02:41:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-10 02:41:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-10 02:41:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:41:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:41:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:41:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-10 02:41:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-10 02:41:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-10 02:41:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-09-10 02:41:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:41:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:41:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:41:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:41:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:41:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:41:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:41:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:41:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:41:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:41:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:41:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:41:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:41:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:41:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:41:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:41:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:41:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:41:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-10 02:41:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:41:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:41:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:41:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:41:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-10 02:41:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-10 02:41:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-10 02:41:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-10 02:41:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-10 02:41:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-10 02:41:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-10 02:41:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-10 02:41:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-10 02:41:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-10 02:41:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-10 02:41:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-10 02:41:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-10 02:41:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-10 02:41:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-10 02:41:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-10 02:41:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-10 02:41:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-10 02:41:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-10 02:41:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-10 02:41:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-10 02:41:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-10 02:41:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-10 02:41:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-10 02:41:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-10 02:41:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-10 02:41:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-10 02:41:18,216 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-10 02:41:18,216 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-10 02:41:18,216 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-10 02:41:18,216 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-10 02:41:18,216 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-10 02:41:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-10 02:41:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-10 02:41:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-10 02:41:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-10 02:41:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-10 02:41:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-10 02:41:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-10 02:41:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:41:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:41:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:41:18,219 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-10 02:41:18,219 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-10 02:41:18,219 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-10 02:41:18,219 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-10 02:41:18,219 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-10 02:41:18,219 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-10 02:41:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-10 02:41:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-10 02:41:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-10 02:41:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-10 02:41:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-10 02:41:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-10 02:41:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-10 02:41:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-10 02:41:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-10 02:41:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-10 02:41:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-10 02:41:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-10 02:41:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-10 02:41:18,221 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-10 02:41:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-10 02:41:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-10 02:41:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-10 02:41:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-10 02:41:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-10 02:41:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-10 02:41:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-10 02:41:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-10 02:41:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-10 02:41:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-10 02:41:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-10 02:41:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-10 02:41:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-10 02:41:18,224 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-10 02:41:18,224 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-10 02:41:18,224 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-10 02:41:18,224 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-10 02:41:18,224 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-10 02:41:18,224 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-10 02:41:18,224 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-10 02:41:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-10 02:41:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-10 02:41:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-10 02:41:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-10 02:41:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-10 02:41:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-10 02:41:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-09-10 02:41:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-09-10 02:41:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:41:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:41:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:41:20,574 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:41:20,575 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 02:41:20,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:41:20 BoogieIcfgContainer [2019-09-10 02:41:20,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:41:20,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:41:20,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:41:20,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:41:20,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:41:16" (1/3) ... [2019-09-10 02:41:20,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67617f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:41:20, skipping insertion in model container [2019-09-10 02:41:20,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:17" (2/3) ... [2019-09-10 02:41:20,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67617f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:41:20, skipping insertion in model container [2019-09-10 02:41:20,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:41:20" (3/3) ... [2019-09-10 02:41:20,587 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product13.cil.c [2019-09-10 02:41:20,597 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:41:20,610 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:41:20,627 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:41:20,656 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:41:20,656 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:41:20,656 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:41:20,656 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:41:20,656 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:41:20,657 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:41:20,657 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:41:20,657 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:41:20,682 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states. [2019-09-10 02:41:20,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-09-10 02:41:20,706 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:20,708 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] [2019-09-10 02:41:20,710 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:20,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:20,717 INFO L82 PathProgramCache]: Analyzing trace with hash -319338325, now seen corresponding path program 1 times [2019-09-10 02:41:20,719 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:20,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:20,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:20,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:20,772 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:21,281 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 02:41:21,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:21,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:41:21,292 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:21,299 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:41:21,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:41:21,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:21,320 INFO L87 Difference]: Start difference. First operand 447 states. Second operand 2 states. [2019-09-10 02:41:21,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:21,396 INFO L93 Difference]: Finished difference Result 411 states and 546 transitions. [2019-09-10 02:41:21,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:41:21,400 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 148 [2019-09-10 02:41:21,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:21,434 INFO L225 Difference]: With dead ends: 411 [2019-09-10 02:41:21,434 INFO L226 Difference]: Without dead ends: 402 [2019-09-10 02:41:21,436 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 02:41:21,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2019-09-10 02:41:21,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2019-09-10 02:41:21,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2019-09-10 02:41:21,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 535 transitions. [2019-09-10 02:41:21,519 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 535 transitions. Word has length 148 [2019-09-10 02:41:21,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:21,522 INFO L475 AbstractCegarLoop]: Abstraction has 402 states and 535 transitions. [2019-09-10 02:41:21,522 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:41:21,522 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 535 transitions. [2019-09-10 02:41:21,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-09-10 02:41:21,528 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:21,529 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] [2019-09-10 02:41:21,529 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:21,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:21,530 INFO L82 PathProgramCache]: Analyzing trace with hash 2037182428, now seen corresponding path program 1 times [2019-09-10 02:41:21,530 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:21,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:21,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:21,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:21,531 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:21,827 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 02:41:21,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:21,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:41:21,828 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:21,832 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:41:21,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:41:21,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:21,834 INFO L87 Difference]: Start difference. First operand 402 states and 535 transitions. Second operand 3 states. [2019-09-10 02:41:21,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:21,885 INFO L93 Difference]: Finished difference Result 405 states and 538 transitions. [2019-09-10 02:41:21,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:41:21,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-09-10 02:41:21,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:21,894 INFO L225 Difference]: With dead ends: 405 [2019-09-10 02:41:21,894 INFO L226 Difference]: Without dead ends: 405 [2019-09-10 02:41:21,895 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 02:41:21,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2019-09-10 02:41:21,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 404. [2019-09-10 02:41:21,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2019-09-10 02:41:21,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 537 transitions. [2019-09-10 02:41:21,938 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 537 transitions. Word has length 149 [2019-09-10 02:41:21,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:21,940 INFO L475 AbstractCegarLoop]: Abstraction has 404 states and 537 transitions. [2019-09-10 02:41:21,940 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:41:21,940 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 537 transitions. [2019-09-10 02:41:21,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-09-10 02:41:21,947 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:21,947 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] [2019-09-10 02:41:21,947 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:21,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:21,948 INFO L82 PathProgramCache]: Analyzing trace with hash 33956208, now seen corresponding path program 1 times [2019-09-10 02:41:21,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:21,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:21,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:21,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:21,952 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:22,144 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 02:41:22,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:22,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:41:22,145 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:22,146 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:41:22,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:41:22,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:22,150 INFO L87 Difference]: Start difference. First operand 404 states and 537 transitions. Second operand 3 states. [2019-09-10 02:41:22,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:22,182 INFO L93 Difference]: Finished difference Result 443 states and 604 transitions. [2019-09-10 02:41:22,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:41:22,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-09-10 02:41:22,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:22,186 INFO L225 Difference]: With dead ends: 443 [2019-09-10 02:41:22,186 INFO L226 Difference]: Without dead ends: 443 [2019-09-10 02:41:22,187 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 02:41:22,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2019-09-10 02:41:22,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 442. [2019-09-10 02:41:22,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-09-10 02:41:22,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 603 transitions. [2019-09-10 02:41:22,215 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 603 transitions. Word has length 155 [2019-09-10 02:41:22,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:22,216 INFO L475 AbstractCegarLoop]: Abstraction has 442 states and 603 transitions. [2019-09-10 02:41:22,216 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:41:22,216 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 603 transitions. [2019-09-10 02:41:22,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-09-10 02:41:22,223 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:22,223 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] [2019-09-10 02:41:22,223 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:22,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:22,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1421123809, now seen corresponding path program 1 times [2019-09-10 02:41:22,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:22,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:22,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:22,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:22,225 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:22,535 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 02:41:22,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:22,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:41:22,536 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:22,537 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:41:22,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:41:22,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:41:22,538 INFO L87 Difference]: Start difference. First operand 442 states and 603 transitions. Second operand 7 states. [2019-09-10 02:41:24,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:24,993 INFO L93 Difference]: Finished difference Result 623 states and 830 transitions. [2019-09-10 02:41:24,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:41:24,994 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2019-09-10 02:41:24,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:24,999 INFO L225 Difference]: With dead ends: 623 [2019-09-10 02:41:24,999 INFO L226 Difference]: Without dead ends: 621 [2019-09-10 02:41:25,000 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 02:41:25,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2019-09-10 02:41:25,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 612. [2019-09-10 02:41:25,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2019-09-10 02:41:25,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 819 transitions. [2019-09-10 02:41:25,031 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 819 transitions. Word has length 156 [2019-09-10 02:41:25,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:25,032 INFO L475 AbstractCegarLoop]: Abstraction has 612 states and 819 transitions. [2019-09-10 02:41:25,032 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:41:25,033 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 819 transitions. [2019-09-10 02:41:25,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-09-10 02:41:25,037 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:25,038 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] [2019-09-10 02:41:25,038 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:25,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:25,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1352001188, now seen corresponding path program 1 times [2019-09-10 02:41:25,038 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:25,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:25,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:25,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:25,040 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:25,350 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 02:41:25,350 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:25,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-09-10 02:41:25,351 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:25,351 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-10 02:41:25,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-10 02:41:25,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-09-10 02:41:25,352 INFO L87 Difference]: Start difference. First operand 612 states and 819 transitions. Second operand 16 states. [2019-09-10 02:41:25,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:25,871 INFO L93 Difference]: Finished difference Result 670 states and 892 transitions. [2019-09-10 02:41:25,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 02:41:25,872 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 157 [2019-09-10 02:41:25,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:25,879 INFO L225 Difference]: With dead ends: 670 [2019-09-10 02:41:25,879 INFO L226 Difference]: Without dead ends: 644 [2019-09-10 02:41:25,880 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-09-10 02:41:25,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2019-09-10 02:41:25,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 640. [2019-09-10 02:41:25,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2019-09-10 02:41:25,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 854 transitions. [2019-09-10 02:41:25,924 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 854 transitions. Word has length 157 [2019-09-10 02:41:25,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:25,926 INFO L475 AbstractCegarLoop]: Abstraction has 640 states and 854 transitions. [2019-09-10 02:41:25,926 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-10 02:41:25,926 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 854 transitions. [2019-09-10 02:41:25,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-09-10 02:41:25,929 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:25,929 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] [2019-09-10 02:41:25,930 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:25,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:25,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1213322281, now seen corresponding path program 1 times [2019-09-10 02:41:25,930 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:25,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:25,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:25,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:25,932 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:26,108 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 02:41:26,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:26,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:41:26,109 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:26,109 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:41:26,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:41:26,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:41:26,110 INFO L87 Difference]: Start difference. First operand 640 states and 854 transitions. Second operand 8 states. [2019-09-10 02:41:27,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:27,121 INFO L93 Difference]: Finished difference Result 1038 states and 1366 transitions. [2019-09-10 02:41:27,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 02:41:27,124 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2019-09-10 02:41:27,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:27,132 INFO L225 Difference]: With dead ends: 1038 [2019-09-10 02:41:27,132 INFO L226 Difference]: Without dead ends: 1036 [2019-09-10 02:41:27,133 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 02:41:27,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2019-09-10 02:41:27,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1023. [2019-09-10 02:41:27,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2019-09-10 02:41:27,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1350 transitions. [2019-09-10 02:41:27,185 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1350 transitions. Word has length 166 [2019-09-10 02:41:27,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:27,188 INFO L475 AbstractCegarLoop]: Abstraction has 1023 states and 1350 transitions. [2019-09-10 02:41:27,189 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:41:27,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1350 transitions. [2019-09-10 02:41:27,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-09-10 02:41:27,192 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:27,193 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] [2019-09-10 02:41:27,193 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:27,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:27,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1191367596, now seen corresponding path program 1 times [2019-09-10 02:41:27,193 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:27,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:27,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:27,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:27,195 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:27,496 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 02:41:27,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:27,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-09-10 02:41:27,498 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:27,498 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-10 02:41:27,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-10 02:41:27,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2019-09-10 02:41:27,500 INFO L87 Difference]: Start difference. First operand 1023 states and 1350 transitions. Second operand 15 states. [2019-09-10 02:41:28,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:28,136 INFO L93 Difference]: Finished difference Result 1022 states and 1346 transitions. [2019-09-10 02:41:28,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:41:28,137 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 167 [2019-09-10 02:41:28,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:28,143 INFO L225 Difference]: With dead ends: 1022 [2019-09-10 02:41:28,144 INFO L226 Difference]: Without dead ends: 1022 [2019-09-10 02:41:28,145 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2019-09-10 02:41:28,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2019-09-10 02:41:28,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1021. [2019-09-10 02:41:28,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2019-09-10 02:41:28,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1345 transitions. [2019-09-10 02:41:28,182 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1345 transitions. Word has length 167 [2019-09-10 02:41:28,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:28,183 INFO L475 AbstractCegarLoop]: Abstraction has 1021 states and 1345 transitions. [2019-09-10 02:41:28,183 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-10 02:41:28,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1345 transitions. [2019-09-10 02:41:28,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-09-10 02:41:28,186 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:28,186 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] [2019-09-10 02:41:28,187 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:28,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:28,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1987588104, now seen corresponding path program 2 times [2019-09-10 02:41:28,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:28,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:28,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:28,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:28,188 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:28,379 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 02:41:28,379 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:28,380 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:41:28,380 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:41:28,381 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:41:28,381 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:28,382 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 02:41:28,404 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 02:41:28,404 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-09-10 02:41:28,687 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-09-10 02:41:28,687 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:41:28,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-10 02:41:28,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:41:28,934 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 02:41:28,934 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:41:29,554 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-10 02:41:29,562 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:41:29,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-09-10 02:41:29,563 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:29,563 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:41:29,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:41:29,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-09-10 02:41:29,564 INFO L87 Difference]: Start difference. First operand 1021 states and 1345 transitions. Second operand 8 states. [2019-09-10 02:41:30,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:30,272 INFO L93 Difference]: Finished difference Result 2000 states and 2654 transitions. [2019-09-10 02:41:30,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 02:41:30,273 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 167 [2019-09-10 02:41:30,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:30,285 INFO L225 Difference]: With dead ends: 2000 [2019-09-10 02:41:30,286 INFO L226 Difference]: Without dead ends: 1998 [2019-09-10 02:41:30,287 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 323 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2019-09-10 02:41:30,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2019-09-10 02:41:30,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1989. [2019-09-10 02:41:30,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1989 states. [2019-09-10 02:41:30,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2643 transitions. [2019-09-10 02:41:30,363 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2643 transitions. Word has length 167 [2019-09-10 02:41:30,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:30,364 INFO L475 AbstractCegarLoop]: Abstraction has 1989 states and 2643 transitions. [2019-09-10 02:41:30,364 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:41:30,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2643 transitions. [2019-09-10 02:41:30,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-09-10 02:41:30,370 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:30,370 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] [2019-09-10 02:41:30,370 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:30,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:30,371 INFO L82 PathProgramCache]: Analyzing trace with hash -133141165, now seen corresponding path program 1 times [2019-09-10 02:41:30,371 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:30,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:30,372 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:41:30,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:30,372 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:30,598 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 02:41:30,598 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:30,598 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:41:30,599 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 169 with the following transitions: [2019-09-10 02:41:30,602 INFO L207 CegarAbsIntRunner]: [59], [62], [63], [66], [72], [73], [76], [85], [110], [126], [129], [143], [144], [146], [256], [258], [262], [265], [266], [311], [314], [323], [326], [328], [329], [332], [342], [599], [601], [602], [603], [639], [642], [656], [685], [688], [694], [695], [696], [697], [714], [716], [720], [723], [737], [741], [744], [762], [765], [796], [805], [809], [811], [813], [816], [823], [830], [833], [1041], [1043], [1046], [1048], [1051], [1111], [1183], [1187], [1198], [1201], [1240], [1242], [1355], [1358], [1360], [1363], [1372], [1378], [1381], [1390], [1444], [1447], [1456], [1579], [1581], [1583], [1585], [1586], [1608], [1618], [1619], [1620], [1621], [1622], [1623], [1626], [1627], [1628], [1629], [1630], [1632], [1633], [1634], [1635], [1648], [1649], [1690], [1691], [1704], [1710], [1711], [1712], [1713], [1714], [1715], [1716], [1717], [1718], [1719], [1720], [1721], [1722], [1723], [1724], [1726], [1727], [1728], [1729], [1760], [1762], [1763], [1764], [1765], [1766], [1768], [1769], [1770], [1772], [1773], [1774], [1775], [1776], [1777], [1778], [1790], [1791], [1792], [1793], [1794], [1795], [1796], [1797], [1798] [2019-09-10 02:41:30,665 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:41:30,665 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:41:30,833 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:41:30,835 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 194 root evaluator evaluations with a maximum evaluation depth of 0. Performed 194 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 360 variables. [2019-09-10 02:41:30,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:30,841 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:41:30,936 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:41:30,936 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:41:30,945 INFO L420 sIntCurrentIteration]: We unified 167 AI predicates to 167 [2019-09-10 02:41:30,945 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:41:30,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:41:30,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-10 02:41:30,947 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:30,948 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:41:30,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:41:30,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:30,949 INFO L87 Difference]: Start difference. First operand 1989 states and 2643 transitions. Second operand 2 states. [2019-09-10 02:41:30,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:30,949 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:41:30,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:41:30,950 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 168 [2019-09-10 02:41:30,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:30,950 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:41:30,950 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:41:30,951 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 167 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 02:41:30,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:41:30,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:41:30,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:41:30,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:41:30,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 168 [2019-09-10 02:41:30,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:30,952 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:41:30,952 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:41:30,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:41:30,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:41:30,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:41:30 BoogieIcfgContainer [2019-09-10 02:41:30,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:41:30,965 INFO L168 Benchmark]: Toolchain (without parser) took 14102.77 ms. Allocated memory was 133.2 MB in the beginning and 453.5 MB in the end (delta: 320.3 MB). Free memory was 86.7 MB in the beginning and 77.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 329.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:30,967 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 107.6 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:41:30,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1074.24 ms. Allocated memory was 133.2 MB in the beginning and 201.9 MB in the end (delta: 68.7 MB). Free memory was 86.5 MB in the beginning and 137.3 MB in the end (delta: -50.7 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:30,971 INFO L168 Benchmark]: Boogie Preprocessor took 155.63 ms. Allocated memory is still 201.9 MB. Free memory was 137.3 MB in the beginning and 128.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:30,974 INFO L168 Benchmark]: RCFGBuilder took 2478.51 ms. Allocated memory was 201.9 MB in the beginning and 260.6 MB in the end (delta: 58.7 MB). Free memory was 128.6 MB in the beginning and 177.4 MB in the end (delta: -48.8 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:30,979 INFO L168 Benchmark]: TraceAbstraction took 10382.32 ms. Allocated memory was 260.6 MB in the beginning and 453.5 MB in the end (delta: 192.9 MB). Free memory was 177.4 MB in the beginning and 77.2 MB in the end (delta: 100.2 MB). Peak memory consumption was 293.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:30,992 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 107.6 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1074.24 ms. Allocated memory was 133.2 MB in the beginning and 201.9 MB in the end (delta: 68.7 MB). Free memory was 86.5 MB in the beginning and 137.3 MB in the end (delta: -50.7 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 155.63 ms. Allocated memory is still 201.9 MB. Free memory was 137.3 MB in the beginning and 128.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2478.51 ms. Allocated memory was 201.9 MB in the beginning and 260.6 MB in the end (delta: 58.7 MB). Free memory was 128.6 MB in the beginning and 177.4 MB in the end (delta: -48.8 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10382.32 ms. Allocated memory was 260.6 MB in the beginning and 453.5 MB in the end (delta: 192.9 MB). Free memory was 177.4 MB in the beginning and 77.2 MB in the end (delta: 100.2 MB). Peak memory consumption was 293.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1866]: 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 108 procedures, 729 locations, 1 error locations. SAFE Result, 10.3s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 5.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4454 SDtfs, 1998 SDslu, 21520 SDs, 0 SdLazy, 3138 SolverSat, 378 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 611 GetRequests, 513 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1989occurred 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, 2.2275449101796405 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 38 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1600 NumberOfCodeBlocks, 1509 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1756 ConstructedInterpolants, 0 QuantifiedInterpolants, 412486 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1821 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...