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_spec11_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:15,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:15,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:15,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:15,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:15,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:15,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:15,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:15,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:15,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:15,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:15,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:15,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:15,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:15,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:15,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:15,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:15,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:15,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:15,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:15,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:15,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:15,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:15,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:15,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:15,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:15,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:15,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:15,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:15,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:15,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:15,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:15,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:15,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:15,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:15,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:15,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:15,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:15,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:15,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:15,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:15,932 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 [2019-09-20 13:29:15,953 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:15,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:15,954 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:15,954 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:15,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:15,955 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:15,956 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:15,956 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:15,956 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:15,956 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:15,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:15,957 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:15,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:15,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:15,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:15,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:15,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:15,958 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:15,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:15,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:15,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:15,959 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:15,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:15,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:15,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:15,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:15,961 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:15,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:15,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:15,962 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:16,015 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:16,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:16,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:16,033 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:16,033 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:16,034 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product07.cil.c [2019-09-20 13:29:16,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/644b08a72/265deb5213744823b631806bec46828e/FLAG209862ed7 [2019-09-20 13:29:16,732 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:16,734 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product07.cil.c [2019-09-20 13:29:16,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/644b08a72/265deb5213744823b631806bec46828e/FLAG209862ed7 [2019-09-20 13:29:16,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/644b08a72/265deb5213744823b631806bec46828e [2019-09-20 13:29:16,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:16,955 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:16,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:16,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:16,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:16,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:16" (1/1) ... [2019-09-20 13:29:16,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a7f8cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:16, skipping insertion in model container [2019-09-20 13:29:16,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:16" (1/1) ... [2019-09-20 13:29:16,974 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:17,053 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:17,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:17,842 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:17,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:18,031 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:18,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18 WrapperNode [2019-09-20 13:29:18,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:18,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:18,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:18,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:18,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (1/1) ... [2019-09-20 13:29:18,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (1/1) ... [2019-09-20 13:29:18,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (1/1) ... [2019-09-20 13:29:18,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (1/1) ... [2019-09-20 13:29:18,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (1/1) ... [2019-09-20 13:29:18,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (1/1) ... [2019-09-20 13:29:18,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (1/1) ... [2019-09-20 13:29:18,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:18,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:18,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:18,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:18,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (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 [2019-09-20 13:29:18,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:18,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-20 13:29:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-20 13:29:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-20 13:29:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-20 13:29:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-20 13:29:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-20 13:29:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-20 13:29:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-20 13:29:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-20 13:29:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-20 13:29:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-20 13:29:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-20 13:29:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-20 13:29:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-20 13:29:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-20 13:29:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-20 13:29:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-20 13:29:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-20 13:29:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-20 13:29:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-20 13:29:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-20 13:29:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-20 13:29:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-20 13:29:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-20 13:29:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-20 13:29:18,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-20 13:29:18,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-20 13:29:18,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-20 13:29:18,299 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-20 13:29:18,300 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-20 13:29:18,300 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-20 13:29:18,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-20 13:29:18,300 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-20 13:29:18,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-20 13:29:18,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-20 13:29:18,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-20 13:29:18,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-20 13:29:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-20 13:29:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-20 13:29:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-20 13:29:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-20 13:29:18,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-20 13:29:18,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-20 13:29:18,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-20 13:29:18,303 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-20 13:29:18,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-20 13:29:18,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-20 13:29:18,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-20 13:29:18,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-20 13:29:18,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-20 13:29:18,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-20 13:29:18,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-20 13:29:18,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-20 13:29:18,305 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-20 13:29:18,305 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-20 13:29:18,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:18,305 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:18,305 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-09-20 13:29:18,306 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-09-20 13:29:18,306 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-20 13:29:18,306 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-09-20 13:29:18,306 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-20 13:29:18,306 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-20 13:29:18,307 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2019-09-20 13:29:18,307 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-20 13:29:18,307 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-20 13:29:18,307 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-20 13:29:18,307 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-20 13:29:18,308 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-20 13:29:18,308 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-20 13:29:18,308 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-20 13:29:18,308 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-09-20 13:29:18,308 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-09-20 13:29:18,309 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-20 13:29:18,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-20 13:29:18,309 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-20 13:29:18,309 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-20 13:29:18,309 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:18,310 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:18,310 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:18,310 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:18,310 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:18,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:18,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:18,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-09-20 13:29:18,312 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-20 13:29:18,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:18,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:18,312 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-20 13:29:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-20 13:29:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-20 13:29:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-20 13:29:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-20 13:29:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-20 13:29:18,314 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-20 13:29:18,314 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-20 13:29:18,314 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-20 13:29:18,314 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-20 13:29:18,314 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-20 13:29:18,315 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-20 13:29:18,315 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-20 13:29:18,315 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-20 13:29:18,315 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-20 13:29:18,315 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-20 13:29:18,315 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-20 13:29:18,316 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-20 13:29:18,316 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-20 13:29:18,316 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-20 13:29:18,316 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-20 13:29:18,316 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-20 13:29:18,317 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-20 13:29:18,317 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-20 13:29:18,317 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-20 13:29:18,317 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-20 13:29:18,317 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-20 13:29:18,318 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-20 13:29:18,318 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-20 13:29:18,318 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-20 13:29:18,318 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-20 13:29:18,318 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-20 13:29:18,318 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-20 13:29:18,319 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-20 13:29:18,319 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-20 13:29:18,319 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-20 13:29:18,319 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-20 13:29:18,319 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-20 13:29:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-20 13:29:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-20 13:29:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-20 13:29:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-20 13:29:18,320 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-20 13:29:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-20 13:29:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-20 13:29:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-20 13:29:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-20 13:29:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-20 13:29:18,322 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-20 13:29:18,322 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-20 13:29:18,322 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:18,322 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-20 13:29:18,322 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:18,322 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-20 13:29:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-20 13:29:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-20 13:29:18,324 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-20 13:29:18,324 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-20 13:29:18,324 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-20 13:29:18,324 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-20 13:29:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-20 13:29:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-20 13:29:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-20 13:29:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-09-20 13:29:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-09-20 13:29:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-20 13:29:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-20 13:29:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-20 13:29:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-20 13:29:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-20 13:29:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-20 13:29:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-09-20 13:29:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-09-20 13:29:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-09-20 13:29:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2019-09-20 13:29:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-09-20 13:29:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-20 13:29:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-20 13:29:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-20 13:29:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-20 13:29:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:18,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:20,584 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:20,585 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 13:29:20,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:20 BoogieIcfgContainer [2019-09-20 13:29:20,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:20,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:20,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:20,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:20,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:16" (1/3) ... [2019-09-20 13:29:20,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a8c966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:20, skipping insertion in model container [2019-09-20 13:29:20,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (2/3) ... [2019-09-20 13:29:20,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a8c966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:20, skipping insertion in model container [2019-09-20 13:29:20,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:20" (3/3) ... [2019-09-20 13:29:20,598 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product07.cil.c [2019-09-20 13:29:20,609 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:20,621 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:20,637 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:20,664 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:20,665 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:20,665 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:20,665 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:20,665 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:20,665 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:20,665 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:20,666 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:20,689 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states. [2019-09-20 13:29:20,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-09-20 13:29:20,710 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:20,712 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:20,714 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:20,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:20,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1773553052, now seen corresponding path program 1 times [2019-09-20 13:29:20,723 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:20,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:20,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:20,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:20,785 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:21,319 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-20 13:29:21,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:21,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:21,322 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:21,329 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:21,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:21,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:21,350 INFO L87 Difference]: Start difference. First operand 313 states. Second operand 2 states. [2019-09-20 13:29:21,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:21,393 INFO L93 Difference]: Finished difference Result 296 states and 396 transitions. [2019-09-20 13:29:21,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:21,395 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 134 [2019-09-20 13:29:21,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:21,413 INFO L225 Difference]: With dead ends: 296 [2019-09-20 13:29:21,413 INFO L226 Difference]: Without dead ends: 287 [2019-09-20 13:29:21,415 INFO L636 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 [2019-09-20 13:29:21,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2019-09-20 13:29:21,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2019-09-20 13:29:21,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2019-09-20 13:29:21,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 385 transitions. [2019-09-20 13:29:21,488 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 385 transitions. Word has length 134 [2019-09-20 13:29:21,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:21,490 INFO L475 AbstractCegarLoop]: Abstraction has 287 states and 385 transitions. [2019-09-20 13:29:21,490 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:21,491 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 385 transitions. [2019-09-20 13:29:21,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-09-20 13:29:21,495 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:21,496 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:21,496 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:21,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:21,497 INFO L82 PathProgramCache]: Analyzing trace with hash -406805330, now seen corresponding path program 1 times [2019-09-20 13:29:21,497 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:21,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:21,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:21,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:21,502 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:21,723 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-20 13:29:21,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:21,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:21,724 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:21,726 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:21,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:21,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:21,727 INFO L87 Difference]: Start difference. First operand 287 states and 385 transitions. Second operand 3 states. [2019-09-20 13:29:21,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:21,763 INFO L93 Difference]: Finished difference Result 290 states and 388 transitions. [2019-09-20 13:29:21,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:21,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-09-20 13:29:21,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:21,768 INFO L225 Difference]: With dead ends: 290 [2019-09-20 13:29:21,769 INFO L226 Difference]: Without dead ends: 290 [2019-09-20 13:29:21,770 INFO L636 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 [2019-09-20 13:29:21,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2019-09-20 13:29:21,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 289. [2019-09-20 13:29:21,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2019-09-20 13:29:21,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 387 transitions. [2019-09-20 13:29:21,792 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 387 transitions. Word has length 135 [2019-09-20 13:29:21,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:21,793 INFO L475 AbstractCegarLoop]: Abstraction has 289 states and 387 transitions. [2019-09-20 13:29:21,793 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:21,794 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 387 transitions. [2019-09-20 13:29:21,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-09-20 13:29:21,797 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:21,798 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:21,798 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:21,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:21,799 INFO L82 PathProgramCache]: Analyzing trace with hash -365945431, now seen corresponding path program 1 times [2019-09-20 13:29:21,799 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:21,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:21,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:21,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:21,806 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:22,104 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-20 13:29:22,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:22,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:22,105 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:22,107 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:22,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:22,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:22,108 INFO L87 Difference]: Start difference. First operand 289 states and 387 transitions. Second operand 6 states. [2019-09-20 13:29:22,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:22,532 INFO L93 Difference]: Finished difference Result 538 states and 731 transitions. [2019-09-20 13:29:22,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:22,533 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2019-09-20 13:29:22,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:22,541 INFO L225 Difference]: With dead ends: 538 [2019-09-20 13:29:22,541 INFO L226 Difference]: Without dead ends: 538 [2019-09-20 13:29:22,542 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:22,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-09-20 13:29:22,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 529. [2019-09-20 13:29:22,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 529 states. [2019-09-20 13:29:22,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 723 transitions. [2019-09-20 13:29:22,603 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 723 transitions. Word has length 140 [2019-09-20 13:29:22,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:22,604 INFO L475 AbstractCegarLoop]: Abstraction has 529 states and 723 transitions. [2019-09-20 13:29:22,604 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:22,604 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 723 transitions. [2019-09-20 13:29:22,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-09-20 13:29:22,608 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:22,609 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:22,609 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:22,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:22,609 INFO L82 PathProgramCache]: Analyzing trace with hash 401785874, now seen corresponding path program 1 times [2019-09-20 13:29:22,610 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:22,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:22,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:22,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:22,614 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:22,801 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-20 13:29:22,802 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:22,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:22,802 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:22,803 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:22,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:22,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:22,804 INFO L87 Difference]: Start difference. First operand 529 states and 723 transitions. Second operand 6 states. [2019-09-20 13:29:23,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:23,356 INFO L93 Difference]: Finished difference Result 1028 states and 1415 transitions. [2019-09-20 13:29:23,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:23,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2019-09-20 13:29:23,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:23,368 INFO L225 Difference]: With dead ends: 1028 [2019-09-20 13:29:23,369 INFO L226 Difference]: Without dead ends: 1028 [2019-09-20 13:29:23,369 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:23,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2019-09-20 13:29:23,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1009. [2019-09-20 13:29:23,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1009 states. [2019-09-20 13:29:23,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1397 transitions. [2019-09-20 13:29:23,463 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1397 transitions. Word has length 141 [2019-09-20 13:29:23,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:23,467 INFO L475 AbstractCegarLoop]: Abstraction has 1009 states and 1397 transitions. [2019-09-20 13:29:23,467 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:23,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1397 transitions. [2019-09-20 13:29:23,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-20 13:29:23,474 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:23,474 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:23,479 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:23,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:23,480 INFO L82 PathProgramCache]: Analyzing trace with hash -450075955, now seen corresponding path program 1 times [2019-09-20 13:29:23,480 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:23,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:23,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:23,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:23,488 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:23,681 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-20 13:29:23,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:23,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:23,682 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:23,684 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:23,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:23,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:23,688 INFO L87 Difference]: Start difference. First operand 1009 states and 1397 transitions. Second operand 6 states. [2019-09-20 13:29:24,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:24,129 INFO L93 Difference]: Finished difference Result 2008 states and 2787 transitions. [2019-09-20 13:29:24,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:24,130 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2019-09-20 13:29:24,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:24,157 INFO L225 Difference]: With dead ends: 2008 [2019-09-20 13:29:24,158 INFO L226 Difference]: Without dead ends: 2008 [2019-09-20 13:29:24,158 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:24,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2019-09-20 13:29:24,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1969. [2019-09-20 13:29:24,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2019-09-20 13:29:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2749 transitions. [2019-09-20 13:29:24,281 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2749 transitions. Word has length 142 [2019-09-20 13:29:24,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:24,282 INFO L475 AbstractCegarLoop]: Abstraction has 1969 states and 2749 transitions. [2019-09-20 13:29:24,282 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:24,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2749 transitions. [2019-09-20 13:29:24,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-20 13:29:24,293 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:24,294 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:24,294 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:24,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:24,295 INFO L82 PathProgramCache]: Analyzing trace with hash 903233742, now seen corresponding path program 1 times [2019-09-20 13:29:24,295 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:24,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:24,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:24,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:24,302 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-20 13:29:24,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:24,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:29:24,566 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:24,567 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:29:24,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:29:24,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:24,568 INFO L87 Difference]: Start difference. First operand 1969 states and 2749 transitions. Second operand 8 states. [2019-09-20 13:29:24,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:24,632 INFO L93 Difference]: Finished difference Result 1966 states and 2739 transitions. [2019-09-20 13:29:24,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:24,688 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2019-09-20 13:29:24,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:24,688 INFO L225 Difference]: With dead ends: 1966 [2019-09-20 13:29:24,688 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:24,689 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:24,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:24,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:24,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:24,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:24,690 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 142 [2019-09-20 13:29:24,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:24,690 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:24,690 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:29:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:24,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:24,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:24 BoogieIcfgContainer [2019-09-20 13:29:24,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:24,701 INFO L168 Benchmark]: Toolchain (without parser) took 7744.31 ms. Allocated memory was 131.6 MB in the beginning and 362.8 MB in the end (delta: 231.2 MB). Free memory was 85.4 MB in the beginning and 305.4 MB in the end (delta: -220.0 MB). Peak memory consumption was 259.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:24,703 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 131.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:24,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1075.89 ms. Allocated memory was 131.6 MB in the beginning and 199.8 MB in the end (delta: 68.2 MB). Free memory was 85.2 MB in the beginning and 138.5 MB in the end (delta: -53.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:24,705 INFO L168 Benchmark]: Boogie Preprocessor took 177.60 ms. Allocated memory is still 199.8 MB. Free memory was 138.5 MB in the beginning and 131.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:24,706 INFO L168 Benchmark]: RCFGBuilder took 2376.25 ms. Allocated memory was 199.8 MB in the beginning and 273.7 MB in the end (delta: 73.9 MB). Free memory was 130.3 MB in the beginning and 217.2 MB in the end (delta: -86.9 MB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:24,707 INFO L168 Benchmark]: TraceAbstraction took 4109.91 ms. Allocated memory was 273.7 MB in the beginning and 362.8 MB in the end (delta: 89.1 MB). Free memory was 217.2 MB in the beginning and 305.4 MB in the end (delta: -88.2 MB). Peak memory consumption was 249.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:24,712 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 131.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1075.89 ms. Allocated memory was 131.6 MB in the beginning and 199.8 MB in the end (delta: 68.2 MB). Free memory was 85.2 MB in the beginning and 138.5 MB in the end (delta: -53.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 177.60 ms. Allocated memory is still 199.8 MB. Free memory was 138.5 MB in the beginning and 131.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2376.25 ms. Allocated memory was 199.8 MB in the beginning and 273.7 MB in the end (delta: 73.9 MB). Free memory was 130.3 MB in the beginning and 217.2 MB in the end (delta: -86.9 MB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4109.91 ms. Allocated memory was 273.7 MB in the beginning and 362.8 MB in the end (delta: 89.1 MB). Free memory was 217.2 MB in the beginning and 305.4 MB in the end (delta: -88.2 MB). Peak memory consumption was 249.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2200]: 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 94 procedures, 633 locations, 1 error locations. SAFE Result, 4.0s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2435 SDtfs, 1039 SDslu, 7122 SDs, 0 SdLazy, 413 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1969occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 68 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 834 NumberOfCodeBlocks, 834 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 828 ConstructedInterpolants, 0 QuantifiedInterpolants, 156882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 104/104 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...