java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:40:06,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:40:06,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:40:06,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:40:06,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:40:06,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:40:06,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:40:06,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:40:06,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:40:06,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:40:06,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:40:06,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:40:06,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:40:06,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:40:06,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:40:06,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:40:06,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:40:06,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:40:06,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:40:06,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:40:06,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:40:06,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:40:06,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:40:06,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:40:06,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:40:06,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:40:06,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:40:06,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:40:06,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:40:06,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:40:06,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:40:06,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:40:06,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:40:06,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:40:06,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:40:06,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:40:06,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:40:06,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:40:06,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:40:06,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:40:06,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:40:06,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:40:06,906 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:40:06,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:40:06,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:40:06,907 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:40:06,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:40:06,908 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:40:06,908 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:40:06,909 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:40:06,909 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:40:06,909 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:40:06,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:40:06,910 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:40:06,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:40:06,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:40:06,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:40:06,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:40:06,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:40:06,911 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:40:06,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:40:06,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:40:06,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:40:06,912 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:40:06,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:40:06,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:40:06,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:40:06,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:40:06,913 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:40:06,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:40:06,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:40:06,914 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:40:06,954 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:40:06,969 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:40:06,973 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:40:06,975 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:40:06,976 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:40:06,977 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c [2019-09-10 02:40:07,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cbcf8655/61b0e180380242f5bc61f84b1bb28205/FLAG19c6c47e6 [2019-09-10 02:40:07,680 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:40:07,681 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c [2019-09-10 02:40:07,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cbcf8655/61b0e180380242f5bc61f84b1bb28205/FLAG19c6c47e6 [2019-09-10 02:40:07,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cbcf8655/61b0e180380242f5bc61f84b1bb28205 [2019-09-10 02:40:07,879 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:40:07,881 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:40:07,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:40:07,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:40:07,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:40:07,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:40:07" (1/1) ... [2019-09-10 02:40:07,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328a7f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:07, skipping insertion in model container [2019-09-10 02:40:07,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:40:07" (1/1) ... [2019-09-10 02:40:07,900 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:40:07,976 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:40:08,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:40:08,690 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:40:08,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:40:08,917 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:40:08,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:08 WrapperNode [2019-09-10 02:40:08,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:40:08,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:40:08,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:40:08,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:40:08,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:08" (1/1) ... [2019-09-10 02:40:08,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:08" (1/1) ... [2019-09-10 02:40:08,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:08" (1/1) ... [2019-09-10 02:40:08,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:08" (1/1) ... [2019-09-10 02:40:09,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:08" (1/1) ... [2019-09-10 02:40:09,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:08" (1/1) ... [2019-09-10 02:40:09,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:08" (1/1) ... [2019-09-10 02:40:09,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:40:09,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:40:09,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:40:09,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:40:09,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:40:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:40:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:40:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:40:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-10 02:40:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-10 02:40:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-10 02:40:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-10 02:40:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-10 02:40:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-10 02:40:09,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-10 02:40:09,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-10 02:40:09,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-10 02:40:09,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-10 02:40:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-10 02:40:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-10 02:40:09,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-10 02:40:09,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-10 02:40:09,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-10 02:40:09,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-10 02:40:09,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-10 02:40:09,171 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-10 02:40:09,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-10 02:40:09,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-10 02:40:09,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-10 02:40:09,173 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-10 02:40:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-10 02:40:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-09-10 02:40:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-10 02:40:09,175 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-10 02:40:09,175 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-09-10 02:40:09,175 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-09-10 02:40:09,175 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-10 02:40:09,175 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-10 02:40:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-10 02:40:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-10 02:40:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-10 02:40:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-10 02:40:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-10 02:40:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-10 02:40:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-10 02:40:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-09-10 02:40:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-09-10 02:40:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-09-10 02:40:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-10 02:40:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-09-10 02:40:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-10 02:40:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-10 02:40:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-10 02:40:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:40:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-10 02:40:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-10 02:40:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-10 02:40:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-10 02:40:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-10 02:40:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-10 02:40:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-10 02:40:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-10 02:40:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:40:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:40:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-10 02:40:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-10 02:40:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-10 02:40:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-10 02:40:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-10 02:40:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-10 02:40:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-10 02:40:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-10 02:40:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-10 02:40:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-09-10 02:40:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-09-10 02:40:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:40:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-10 02:40:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-10 02:40:09,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-10 02:40:09,182 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-10 02:40:09,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-10 02:40:09,182 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-10 02:40:09,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-10 02:40:09,182 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-10 02:40:09,183 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-10 02:40:09,183 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-10 02:40:09,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-10 02:40:09,183 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-10 02:40:09,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-10 02:40:09,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-10 02:40:09,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-10 02:40:09,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-10 02:40:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-10 02:40:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-10 02:40:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-10 02:40:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-10 02:40:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-10 02:40:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-10 02:40:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-10 02:40:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-10 02:40:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-10 02:40:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-10 02:40:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-10 02:40:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-10 02:40:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-10 02:40:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-09-10 02:40:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:40:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:40:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:40:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:40:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:40:09,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:40:09,188 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:40:09,188 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:40:09,188 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:40:09,188 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:40:09,188 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-10 02:40:09,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:40:09,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:40:09,188 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-10 02:40:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-10 02:40:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-10 02:40:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-10 02:40:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-10 02:40:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-10 02:40:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-10 02:40:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-10 02:40:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-10 02:40:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-10 02:40:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-10 02:40:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-10 02:40:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-10 02:40:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-10 02:40:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-10 02:40:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-10 02:40:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-10 02:40:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-10 02:40:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-10 02:40:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-10 02:40:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-10 02:40:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:40:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-10 02:40:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-10 02:40:09,196 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-10 02:40:09,199 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-10 02:40:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-10 02:40:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-10 02:40:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-10 02:40:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-10 02:40:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-10 02:40:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-10 02:40:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-10 02:40:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-10 02:40:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-10 02:40:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-10 02:40:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-10 02:40:09,208 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-10 02:40:09,208 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-10 02:40:09,208 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-10 02:40:09,208 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-10 02:40:09,212 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-10 02:40:09,213 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-10 02:40:09,213 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-10 02:40:09,213 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-09-10 02:40:09,213 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-09-10 02:40:09,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-09-10 02:40:09,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:40:09,213 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-10 02:40:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-09-10 02:40:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-09-10 02:40:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-09-10 02:40:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-10 02:40:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-10 02:40:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-10 02:40:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-09-10 02:40:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-09-10 02:40:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:40:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-10 02:40:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-10 02:40:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-10 02:40:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-10 02:40:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-10 02:40:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-10 02:40:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-10 02:40:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-10 02:40:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-10 02:40:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-10 02:40:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:40:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:40:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:40:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-10 02:40:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-10 02:40:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-10 02:40:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-10 02:40:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-10 02:40:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:40:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:40:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:40:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-10 02:40:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-10 02:40:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-10 02:40:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-10 02:40:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-10 02:40:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-10 02:40:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-10 02:40:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-10 02:40:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-10 02:40:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-09-10 02:40:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-09-10 02:40:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-10 02:40:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-10 02:40:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-10 02:40:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-10 02:40:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-10 02:40:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-10 02:40:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-10 02:40:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-10 02:40:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-10 02:40:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-10 02:40:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-10 02:40:09,221 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-10 02:40:09,221 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-10 02:40:09,221 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-10 02:40:09,221 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:40:09,221 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:40:09,221 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:40:09,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:40:09,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:40:09,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:40:09,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:40:09,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:40:09,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:40:09,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:40:09,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:40:09,223 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:40:09,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:40:09,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:40:09,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:40:09,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:40:09,224 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:40:09,224 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-10 02:40:09,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:40:09,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:40:09,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:40:11,245 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:40:11,245 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 02:40:11,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:40:11 BoogieIcfgContainer [2019-09-10 02:40:11,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:40:11,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:40:11,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:40:11,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:40:11,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:40:07" (1/3) ... [2019-09-10 02:40:11,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2023b8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:40:11, skipping insertion in model container [2019-09-10 02:40:11,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:08" (2/3) ... [2019-09-10 02:40:11,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2023b8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:40:11, skipping insertion in model container [2019-09-10 02:40:11,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:40:11" (3/3) ... [2019-09-10 02:40:11,256 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product20.cil.c [2019-09-10 02:40:11,267 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:40:11,278 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:40:11,295 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:40:11,329 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:40:11,329 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:40:11,329 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:40:11,329 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:40:11,330 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:40:11,330 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:40:11,330 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:40:11,330 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:40:11,369 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states. [2019-09-10 02:40:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-09-10 02:40:11,410 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:11,415 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:11,420 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:11,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:11,429 INFO L82 PathProgramCache]: Analyzing trace with hash -165489832, now seen corresponding path program 1 times [2019-09-10 02:40:11,432 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:11,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:11,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:11,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:11,491 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:12,084 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:12,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:12,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:40:12,087 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:12,094 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:40:12,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:40:12,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:12,113 INFO L87 Difference]: Start difference. First operand 559 states. Second operand 2 states. [2019-09-10 02:40:12,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:12,174 INFO L93 Difference]: Finished difference Result 515 states and 708 transitions. [2019-09-10 02:40:12,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:40:12,176 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-09-10 02:40:12,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:12,207 INFO L225 Difference]: With dead ends: 515 [2019-09-10 02:40:12,208 INFO L226 Difference]: Without dead ends: 506 [2019-09-10 02:40:12,209 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:12,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2019-09-10 02:40:12,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2019-09-10 02:40:12,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2019-09-10 02:40:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 697 transitions. [2019-09-10 02:40:12,345 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 697 transitions. Word has length 154 [2019-09-10 02:40:12,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:12,348 INFO L475 AbstractCegarLoop]: Abstraction has 506 states and 697 transitions. [2019-09-10 02:40:12,348 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:40:12,348 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 697 transitions. [2019-09-10 02:40:12,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-09-10 02:40:12,353 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:12,354 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:12,354 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:12,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:12,355 INFO L82 PathProgramCache]: Analyzing trace with hash 251195075, now seen corresponding path program 1 times [2019-09-10 02:40:12,355 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:12,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:12,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:12,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:12,356 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:12,597 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:12,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:12,597 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:12,599 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:12,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:12,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:12,599 INFO L87 Difference]: Start difference. First operand 506 states and 697 transitions. Second operand 3 states. [2019-09-10 02:40:12,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:12,638 INFO L93 Difference]: Finished difference Result 509 states and 700 transitions. [2019-09-10 02:40:12,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:12,638 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-09-10 02:40:12,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:12,644 INFO L225 Difference]: With dead ends: 509 [2019-09-10 02:40:12,644 INFO L226 Difference]: Without dead ends: 509 [2019-09-10 02:40:12,645 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:12,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2019-09-10 02:40:12,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 508. [2019-09-10 02:40:12,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2019-09-10 02:40:12,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 699 transitions. [2019-09-10 02:40:12,681 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 699 transitions. Word has length 155 [2019-09-10 02:40:12,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:12,682 INFO L475 AbstractCegarLoop]: Abstraction has 508 states and 699 transitions. [2019-09-10 02:40:12,682 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:12,682 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 699 transitions. [2019-09-10 02:40:12,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-09-10 02:40:12,687 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:12,687 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:12,687 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:12,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:12,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1211628493, now seen corresponding path program 1 times [2019-09-10 02:40:12,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:12,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:12,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:12,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:12,693 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:12,859 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:12,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:12,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:12,860 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:12,860 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:12,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:12,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:12,861 INFO L87 Difference]: Start difference. First operand 508 states and 699 transitions. Second operand 3 states. [2019-09-10 02:40:12,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:12,898 INFO L93 Difference]: Finished difference Result 551 states and 772 transitions. [2019-09-10 02:40:12,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:12,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-09-10 02:40:12,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:12,905 INFO L225 Difference]: With dead ends: 551 [2019-09-10 02:40:12,905 INFO L226 Difference]: Without dead ends: 551 [2019-09-10 02:40:12,906 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:12,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-09-10 02:40:12,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 550. [2019-09-10 02:40:12,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2019-09-10 02:40:12,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 771 transitions. [2019-09-10 02:40:12,953 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 771 transitions. Word has length 165 [2019-09-10 02:40:12,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:12,955 INFO L475 AbstractCegarLoop]: Abstraction has 550 states and 771 transitions. [2019-09-10 02:40:12,955 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:12,955 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 771 transitions. [2019-09-10 02:40:12,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-09-10 02:40:12,960 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:12,960 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:12,961 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:12,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:12,961 INFO L82 PathProgramCache]: Analyzing trace with hash 964514250, now seen corresponding path program 1 times [2019-09-10 02:40:12,961 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:12,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:12,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:12,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:12,962 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:13,129 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:13,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:13,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:13,130 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:13,131 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:13,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:13,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:13,132 INFO L87 Difference]: Start difference. First operand 550 states and 771 transitions. Second operand 3 states. [2019-09-10 02:40:13,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:13,169 INFO L93 Difference]: Finished difference Result 632 states and 910 transitions. [2019-09-10 02:40:13,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:13,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-09-10 02:40:13,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:13,178 INFO L225 Difference]: With dead ends: 632 [2019-09-10 02:40:13,178 INFO L226 Difference]: Without dead ends: 632 [2019-09-10 02:40:13,178 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:13,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2019-09-10 02:40:13,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 631. [2019-09-10 02:40:13,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-09-10 02:40:13,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 909 transitions. [2019-09-10 02:40:13,209 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 909 transitions. Word has length 166 [2019-09-10 02:40:13,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:13,210 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 909 transitions. [2019-09-10 02:40:13,210 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:13,211 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 909 transitions. [2019-09-10 02:40:13,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-09-10 02:40:13,215 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:13,216 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:13,216 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:13,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:13,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1255605427, now seen corresponding path program 1 times [2019-09-10 02:40:13,217 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:13,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:13,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:13,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:13,218 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:13,391 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:13,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:13,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:13,392 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:13,393 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:13,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:13,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:13,394 INFO L87 Difference]: Start difference. First operand 631 states and 909 transitions. Second operand 3 states. [2019-09-10 02:40:13,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:13,423 INFO L93 Difference]: Finished difference Result 788 states and 1174 transitions. [2019-09-10 02:40:13,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:13,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2019-09-10 02:40:13,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:13,430 INFO L225 Difference]: With dead ends: 788 [2019-09-10 02:40:13,430 INFO L226 Difference]: Without dead ends: 788 [2019-09-10 02:40:13,430 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:13,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-09-10 02:40:13,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 787. [2019-09-10 02:40:13,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-09-10 02:40:13,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1173 transitions. [2019-09-10 02:40:13,467 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1173 transitions. Word has length 167 [2019-09-10 02:40:13,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:13,468 INFO L475 AbstractCegarLoop]: Abstraction has 787 states and 1173 transitions. [2019-09-10 02:40:13,468 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:13,468 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1173 transitions. [2019-09-10 02:40:13,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-09-10 02:40:13,473 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:13,473 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:13,473 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:13,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:13,474 INFO L82 PathProgramCache]: Analyzing trace with hash 631123274, now seen corresponding path program 1 times [2019-09-10 02:40:13,474 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:13,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:13,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:13,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:13,475 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:13,644 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:13,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:13,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:13,645 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:13,646 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:13,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:13,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:13,647 INFO L87 Difference]: Start difference. First operand 787 states and 1173 transitions. Second operand 3 states. [2019-09-10 02:40:13,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:13,719 INFO L93 Difference]: Finished difference Result 1088 states and 1678 transitions. [2019-09-10 02:40:13,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:13,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-09-10 02:40:13,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:13,732 INFO L225 Difference]: With dead ends: 1088 [2019-09-10 02:40:13,732 INFO L226 Difference]: Without dead ends: 1088 [2019-09-10 02:40:13,733 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:13,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2019-09-10 02:40:13,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1087. [2019-09-10 02:40:13,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1087 states. [2019-09-10 02:40:13,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1677 transitions. [2019-09-10 02:40:13,780 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1677 transitions. Word has length 168 [2019-09-10 02:40:13,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:13,782 INFO L475 AbstractCegarLoop]: Abstraction has 1087 states and 1677 transitions. [2019-09-10 02:40:13,782 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:13,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1677 transitions. [2019-09-10 02:40:13,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-09-10 02:40:13,790 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:13,790 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:13,790 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:13,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:13,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1431519593, now seen corresponding path program 1 times [2019-09-10 02:40:13,791 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:13,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:13,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:13,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:13,801 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:14,026 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:14,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:14,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:40:14,027 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:14,027 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:40:14,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:40:14,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:40:14,028 INFO L87 Difference]: Start difference. First operand 1087 states and 1677 transitions. Second operand 6 states. [2019-09-10 02:40:14,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:14,751 INFO L93 Difference]: Finished difference Result 1101 states and 1694 transitions. [2019-09-10 02:40:14,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:40:14,752 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2019-09-10 02:40:14,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:14,761 INFO L225 Difference]: With dead ends: 1101 [2019-09-10 02:40:14,762 INFO L226 Difference]: Without dead ends: 1099 [2019-09-10 02:40:14,763 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:40:14,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2019-09-10 02:40:14,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1099. [2019-09-10 02:40:14,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1099 states. [2019-09-10 02:40:14,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1692 transitions. [2019-09-10 02:40:14,816 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1692 transitions. Word has length 171 [2019-09-10 02:40:14,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:14,817 INFO L475 AbstractCegarLoop]: Abstraction has 1099 states and 1692 transitions. [2019-09-10 02:40:14,817 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:40:14,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1692 transitions. [2019-09-10 02:40:14,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-09-10 02:40:14,824 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:14,824 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:14,824 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:14,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:14,825 INFO L82 PathProgramCache]: Analyzing trace with hash 911756595, now seen corresponding path program 1 times [2019-09-10 02:40:14,825 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:14,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:14,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:14,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:14,827 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:15,066 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:15,067 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:15,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:15,067 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:15,068 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:15,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:15,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:15,069 INFO L87 Difference]: Start difference. First operand 1099 states and 1692 transitions. Second operand 3 states. [2019-09-10 02:40:15,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:15,099 INFO L93 Difference]: Finished difference Result 1676 states and 2653 transitions. [2019-09-10 02:40:15,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:15,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2019-09-10 02:40:15,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:15,110 INFO L225 Difference]: With dead ends: 1676 [2019-09-10 02:40:15,111 INFO L226 Difference]: Without dead ends: 1676 [2019-09-10 02:40:15,111 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:15,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2019-09-10 02:40:15,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1675. [2019-09-10 02:40:15,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1675 states. [2019-09-10 02:40:15,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 2652 transitions. [2019-09-10 02:40:15,170 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 2652 transitions. Word has length 169 [2019-09-10 02:40:15,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:15,170 INFO L475 AbstractCegarLoop]: Abstraction has 1675 states and 2652 transitions. [2019-09-10 02:40:15,170 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:15,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 2652 transitions. [2019-09-10 02:40:15,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-09-10 02:40:15,179 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:15,180 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:15,180 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:15,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:15,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1249840830, now seen corresponding path program 1 times [2019-09-10 02:40:15,181 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:15,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:15,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:15,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:15,182 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:15,370 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-10 02:40:15,370 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:40:15,370 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:40:15,371 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2019-09-10 02:40:15,374 INFO L207 CegarAbsIntRunner]: [96], [99], [109], [110], [139], [142], [143], [144], [146], [256], [258], [262], [265], [266], [267], [270], [276], [300], [307], [309], [312], [318], [320], [322], [329], [336], [339], [348], [369], [371], [372], [375], [385], [427], [612], [614], [615], [616], [652], [655], [669], [708], [715], [716], [750], [754], [757], [765], [768], [832], [841], [845], [847], [849], [852], [859], [866], [869], [871], [1007], [1012], [1015], [1024], [1132], [1186], [1188], [1205], [1227], [1238], [1241], [1242], [1245], [1248], [1279], [1282], [1284], [1353], [1356], [1362], [1397], [1400], [1414], [1422], [1425], [1434], [1628], [1630], [1632], [1634], [1635], [1657], [1667], [1668], [1669], [1670], [1671], [1672], [1675], [1676], [1677], [1678], [1679], [1681], [1682], [1683], [1684], [1693], [1694], [1695], [1697], [1698], [1699], [1700], [1705], [1717], [1718], [1729], [1730], [1747], [1748], [1761], [1767], [1768], [1769], [1770], [1771], [1772], [1773], [1774], [1775], [1777], [1778], [1779], [1780], [1813], [1814], [1831], [1833], [1834], [1851], [1853], [1854], [1855], [1856], [1857], [1858], [1859], [1881], [1882], [1883], [1884], [1885], [1886], [1887], [1888], [1889] [2019-09-10 02:40:15,429 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:40:15,429 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:40:15,592 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:40:15,594 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 227 root evaluator evaluations with a maximum evaluation depth of 0. Performed 227 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 370 variables. [2019-09-10 02:40:15,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:15,598 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:40:15,703 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:40:15,703 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:40:15,715 INFO L420 sIntCurrentIteration]: We unified 171 AI predicates to 171 [2019-09-10 02:40:15,715 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:40:15,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:40:15,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 02:40:15,716 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:15,718 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:40:15,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:40:15,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:15,719 INFO L87 Difference]: Start difference. First operand 1675 states and 2652 transitions. Second operand 2 states. [2019-09-10 02:40:15,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:15,720 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:40:15,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:40:15,720 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 172 [2019-09-10 02:40:15,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:15,720 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:40:15,720 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:40:15,721 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:15,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:40:15,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:40:15,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:40:15,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:40:15,722 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 172 [2019-09-10 02:40:15,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:15,722 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:40:15,722 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:40:15,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:40:15,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:40:15,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:40:15 BoogieIcfgContainer [2019-09-10 02:40:15,729 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:40:15,732 INFO L168 Benchmark]: Toolchain (without parser) took 7849.77 ms. Allocated memory was 134.2 MB in the beginning and 389.0 MB in the end (delta: 254.8 MB). Free memory was 88.0 MB in the beginning and 185.9 MB in the end (delta: -97.9 MB). Peak memory consumption was 156.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:15,734 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:40:15,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1033.80 ms. Allocated memory was 134.2 MB in the beginning and 202.4 MB in the end (delta: 68.2 MB). Free memory was 87.6 MB in the beginning and 137.0 MB in the end (delta: -49.5 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:15,738 INFO L168 Benchmark]: Boogie Preprocessor took 181.83 ms. Allocated memory is still 202.4 MB. Free memory was 137.0 MB in the beginning and 128.5 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:15,740 INFO L168 Benchmark]: RCFGBuilder took 2141.10 ms. Allocated memory was 202.4 MB in the beginning and 260.6 MB in the end (delta: 58.2 MB). Free memory was 127.9 MB in the beginning and 164.7 MB in the end (delta: -36.9 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:15,745 INFO L168 Benchmark]: TraceAbstraction took 4480.01 ms. Allocated memory was 260.6 MB in the beginning and 389.0 MB in the end (delta: 128.5 MB). Free memory was 164.7 MB in the beginning and 185.9 MB in the end (delta: -21.1 MB). Peak memory consumption was 107.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:15,752 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1033.80 ms. Allocated memory was 134.2 MB in the beginning and 202.4 MB in the end (delta: 68.2 MB). Free memory was 87.6 MB in the beginning and 137.0 MB in the end (delta: -49.5 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 181.83 ms. Allocated memory is still 202.4 MB. Free memory was 137.0 MB in the beginning and 128.5 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2141.10 ms. Allocated memory was 202.4 MB in the beginning and 260.6 MB in the end (delta: 58.2 MB). Free memory was 127.9 MB in the beginning and 164.7 MB in the end (delta: -36.9 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4480.01 ms. Allocated memory was 260.6 MB in the beginning and 389.0 MB in the end (delta: 128.5 MB). Free memory was 164.7 MB in the beginning and 185.9 MB in the end (delta: -21.1 MB). Peak memory consumption was 107.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 894]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 112 procedures, 771 locations, 1 error locations. SAFE Result, 4.4s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5643 SDtfs, 949 SDslu, 6057 SDs, 0 SdLazy, 243 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1675occurred 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, 2.2865497076023393 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 6 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1487 NumberOfCodeBlocks, 1487 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1478 ConstructedInterpolants, 0 QuantifiedInterpolants, 266868 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 263/266 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...