java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:41:17,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:41:17,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:41:17,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:41:17,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:41:17,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:41:17,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:41:17,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:41:17,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:41:17,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:41:17,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:41:17,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:41:17,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:41:17,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:41:17,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:41:17,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:41:17,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:41:17,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:41:17,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:41:17,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:41:17,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:41:17,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:41:17,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:41:17,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:41:17,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:41:17,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:41:17,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:41:17,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:41:17,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:41:17,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:41:17,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:41:17,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:41:17,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:41:17,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:41:17,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:41:17,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:41:17,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:41:17,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:41:17,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:41:17,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:41:17,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:41:17,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:41:17,913 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:41:17,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:41:17,915 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:41:17,916 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:41:17,916 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:41:17,917 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:41:17,917 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:41:17,917 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:41:17,917 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:41:17,918 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:41:17,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:41:17,920 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:41:17,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:41:17,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:41:17,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:41:17,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:41:17,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:41:17,921 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:41:17,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:41:17,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:41:17,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:41:17,922 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:41:17,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:41:17,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:41:17,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:41:17,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:41:17,924 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:41:17,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:41:17,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:41:17,924 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:41:17,976 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:41:17,994 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:41:18,000 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:41:18,001 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:41:18,002 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:41:18,003 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c [2019-09-10 02:41:18,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06a05b84f/ef6880340b30412399dcda5074f2089b/FLAG775ca04a3 [2019-09-10 02:41:18,628 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:41:18,628 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c [2019-09-10 02:41:18,651 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06a05b84f/ef6880340b30412399dcda5074f2089b/FLAG775ca04a3 [2019-09-10 02:41:18,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06a05b84f/ef6880340b30412399dcda5074f2089b [2019-09-10 02:41:18,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:41:18,845 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:41:18,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:41:18,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:41:18,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:41:18,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:41:18" (1/1) ... [2019-09-10 02:41:18,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a5425a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:18, skipping insertion in model container [2019-09-10 02:41:18,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:41:18" (1/1) ... [2019-09-10 02:41:18,861 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:41:18,934 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:41:19,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:41:19,681 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:41:19,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:41:19,915 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:41:19,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:19 WrapperNode [2019-09-10 02:41:19,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:41:19,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:41:19,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:41:19,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:41:19,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:19" (1/1) ... [2019-09-10 02:41:19,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:19" (1/1) ... [2019-09-10 02:41:19,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:19" (1/1) ... [2019-09-10 02:41:19,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:19" (1/1) ... [2019-09-10 02:41:20,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:19" (1/1) ... [2019-09-10 02:41:20,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:19" (1/1) ... [2019-09-10 02:41:20,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:19" (1/1) ... [2019-09-10 02:41:20,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:41:20,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:41:20,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:41:20,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:41:20,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:41:20,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:41:20,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:41:20,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:41:20,148 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-10 02:41:20,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-10 02:41:20,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-10 02:41:20,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-10 02:41:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-10 02:41:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-10 02:41:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-10 02:41:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-10 02:41:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-10 02:41:20,150 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-10 02:41:20,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-10 02:41:20,150 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-10 02:41:20,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-10 02:41:20,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-10 02:41:20,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-10 02:41:20,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-10 02:41:20,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-10 02:41:20,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-10 02:41:20,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-10 02:41:20,152 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-10 02:41:20,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-10 02:41:20,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-10 02:41:20,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-10 02:41:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-10 02:41:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-10 02:41:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-10 02:41:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-10 02:41:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-10 02:41:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-10 02:41:20,154 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-10 02:41:20,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-10 02:41:20,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-10 02:41:20,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-10 02:41:20,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-10 02:41:20,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-10 02:41:20,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-10 02:41:20,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-10 02:41:20,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-10 02:41:20,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-10 02:41:20,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-10 02:41:20,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-10 02:41:20,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-10 02:41:20,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-10 02:41:20,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-10 02:41:20,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-10 02:41:20,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-10 02:41:20,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-10 02:41:20,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-10 02:41:20,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-10 02:41:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-10 02:41:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-10 02:41:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-10 02:41:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-10 02:41:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-10 02:41:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-10 02:41:20,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-10 02:41:20,158 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-10 02:41:20,158 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-10 02:41:20,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:41:20,158 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:41:20,159 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-10 02:41:20,159 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-10 02:41:20,159 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-10 02:41:20,159 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-10 02:41:20,159 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-10 02:41:20,159 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-10 02:41:20,160 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-10 02:41:20,160 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-10 02:41:20,160 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-10 02:41:20,160 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-09-10 02:41:20,160 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-09-10 02:41:20,160 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-09-10 02:41:20,161 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-10 02:41:20,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-10 02:41:20,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-10 02:41:20,161 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-10 02:41:20,161 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:41:20,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:41:20,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:41:20,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:41:20,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:41:20,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:41:20,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:41:20,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:41:20,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:41:20,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:41:20,163 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:41:20,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-09-10 02:41:20,163 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-10 02:41:20,164 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-09-10 02:41:20,164 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-10 02:41:20,164 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-10 02:41:20,164 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-09-10 02:41:20,164 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-10 02:41:20,165 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-10 02:41:20,165 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-10 02:41:20,165 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-10 02:41:20,165 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-10 02:41:20,165 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-10 02:41:20,165 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-10 02:41:20,166 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-10 02:41:20,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-10 02:41:20,166 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-10 02:41:20,166 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-09-10 02:41:20,166 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-10 02:41:20,166 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-10 02:41:20,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:41:20,167 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-10 02:41:20,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:41:20,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:41:20,167 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-10 02:41:20,168 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-10 02:41:20,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-10 02:41:20,168 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-10 02:41:20,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-10 02:41:20,168 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-10 02:41:20,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-10 02:41:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-10 02:41:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-10 02:41:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-10 02:41:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-10 02:41:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-10 02:41:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-10 02:41:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-10 02:41:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-10 02:41:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-10 02:41:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-10 02:41:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-10 02:41:20,171 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-10 02:41:20,171 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-10 02:41:20,171 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-10 02:41:20,171 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-10 02:41:20,171 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-10 02:41:20,172 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-10 02:41:20,172 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-10 02:41:20,172 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-10 02:41:20,172 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-10 02:41:20,172 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-10 02:41:20,172 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-10 02:41:20,172 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-10 02:41:20,173 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-10 02:41:20,173 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-10 02:41:20,173 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-10 02:41:20,173 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-10 02:41:20,173 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-10 02:41:20,173 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-10 02:41:20,174 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-10 02:41:20,174 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-10 02:41:20,174 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-10 02:41:20,174 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-10 02:41:20,174 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-10 02:41:20,174 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-10 02:41:20,174 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-10 02:41:20,175 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-10 02:41:20,175 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-10 02:41:20,175 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-10 02:41:20,175 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-10 02:41:20,175 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-10 02:41:20,175 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-10 02:41:20,175 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-10 02:41:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:41:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-10 02:41:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:41:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:41:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:41:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-10 02:41:20,176 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-10 02:41:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-10 02:41:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-10 02:41:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-10 02:41:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-10 02:41:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-10 02:41:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-10 02:41:20,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-10 02:41:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-10 02:41:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-10 02:41:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:41:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:41:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:41:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-10 02:41:20,178 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-10 02:41:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-10 02:41:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-10 02:41:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-10 02:41:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-10 02:41:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-10 02:41:20,179 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-10 02:41:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-10 02:41:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-09-10 02:41:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-10 02:41:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-10 02:41:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-10 02:41:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:41:20,180 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-10 02:41:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-10 02:41:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-10 02:41:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-10 02:41:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-09-10 02:41:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-09-10 02:41:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:41:20,181 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:41:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:41:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:41:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:41:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:41:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:41:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:41:20,182 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:41:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:41:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:41:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:41:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:41:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:41:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:41:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:41:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:41:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:41:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-09-10 02:41:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-10 02:41:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-10 02:41:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-10 02:41:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-10 02:41:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-10 02:41:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-10 02:41:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-09-10 02:41:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-10 02:41:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-10 02:41:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-09-10 02:41:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-09-10 02:41:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-10 02:41:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-10 02:41:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:41:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:41:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:41:22,043 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:41:22,044 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 02:41:22,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:41:22 BoogieIcfgContainer [2019-09-10 02:41:22,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:41:22,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:41:22,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:41:22,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:41:22,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:41:18" (1/3) ... [2019-09-10 02:41:22,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcaab63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:41:22, skipping insertion in model container [2019-09-10 02:41:22,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:19" (2/3) ... [2019-09-10 02:41:22,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcaab63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:41:22, skipping insertion in model container [2019-09-10 02:41:22,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:41:22" (3/3) ... [2019-09-10 02:41:22,055 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product18.cil.c [2019-09-10 02:41:22,066 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:41:22,080 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:41:22,101 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:41:22,136 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:41:22,136 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:41:22,136 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:41:22,136 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:41:22,136 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:41:22,136 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:41:22,137 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:41:22,137 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:41:22,173 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states. [2019-09-10 02:41:22,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-09-10 02:41:22,214 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:22,216 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:22,220 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:22,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:22,230 INFO L82 PathProgramCache]: Analyzing trace with hash -463084793, now seen corresponding path program 1 times [2019-09-10 02:41:22,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:22,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:22,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:22,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:22,295 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:22,824 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:22,827 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:22,827 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:41:22,827 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:22,834 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:41:22,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:41:22,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:22,851 INFO L87 Difference]: Start difference. First operand 482 states. Second operand 2 states. [2019-09-10 02:41:22,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:22,908 INFO L93 Difference]: Finished difference Result 446 states and 590 transitions. [2019-09-10 02:41:22,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:41:22,910 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 148 [2019-09-10 02:41:22,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:22,930 INFO L225 Difference]: With dead ends: 446 [2019-09-10 02:41:22,930 INFO L226 Difference]: Without dead ends: 437 [2019-09-10 02:41:22,932 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:22,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2019-09-10 02:41:23,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2019-09-10 02:41:23,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-09-10 02:41:23,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 579 transitions. [2019-09-10 02:41:23,017 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 579 transitions. Word has length 148 [2019-09-10 02:41:23,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:23,019 INFO L475 AbstractCegarLoop]: Abstraction has 437 states and 579 transitions. [2019-09-10 02:41:23,019 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:41:23,019 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 579 transitions. [2019-09-10 02:41:23,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-09-10 02:41:23,025 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:23,026 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:23,026 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:23,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:23,027 INFO L82 PathProgramCache]: Analyzing trace with hash -348931153, now seen corresponding path program 1 times [2019-09-10 02:41:23,027 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:23,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:23,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:23,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:23,032 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:23,348 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:23,348 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:23,348 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:41:23,349 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:23,351 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:41:23,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:41:23,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:23,352 INFO L87 Difference]: Start difference. First operand 437 states and 579 transitions. Second operand 3 states. [2019-09-10 02:41:23,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:23,410 INFO L93 Difference]: Finished difference Result 440 states and 582 transitions. [2019-09-10 02:41:23,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:41:23,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-09-10 02:41:23,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:23,422 INFO L225 Difference]: With dead ends: 440 [2019-09-10 02:41:23,422 INFO L226 Difference]: Without dead ends: 440 [2019-09-10 02:41:23,423 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:23,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2019-09-10 02:41:23,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 439. [2019-09-10 02:41:23,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2019-09-10 02:41:23,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 581 transitions. [2019-09-10 02:41:23,467 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 581 transitions. Word has length 149 [2019-09-10 02:41:23,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:23,468 INFO L475 AbstractCegarLoop]: Abstraction has 439 states and 581 transitions. [2019-09-10 02:41:23,468 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:41:23,468 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 581 transitions. [2019-09-10 02:41:23,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-09-10 02:41:23,471 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:23,471 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:23,471 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:23,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:23,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1648155391, now seen corresponding path program 1 times [2019-09-10 02:41:23,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:23,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:23,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:23,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:23,473 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:23,639 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:23,639 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:23,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:41:23,640 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:23,640 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:41:23,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:41:23,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:23,641 INFO L87 Difference]: Start difference. First operand 439 states and 581 transitions. Second operand 3 states. [2019-09-10 02:41:23,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:23,665 INFO L93 Difference]: Finished difference Result 480 states and 651 transitions. [2019-09-10 02:41:23,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:41:23,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-09-10 02:41:23,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:23,670 INFO L225 Difference]: With dead ends: 480 [2019-09-10 02:41:23,670 INFO L226 Difference]: Without dead ends: 480 [2019-09-10 02:41:23,671 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:23,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2019-09-10 02:41:23,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 479. [2019-09-10 02:41:23,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2019-09-10 02:41:23,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 650 transitions. [2019-09-10 02:41:23,691 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 650 transitions. Word has length 159 [2019-09-10 02:41:23,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:23,692 INFO L475 AbstractCegarLoop]: Abstraction has 479 states and 650 transitions. [2019-09-10 02:41:23,692 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:41:23,692 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 650 transitions. [2019-09-10 02:41:23,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-09-10 02:41:23,695 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:23,695 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:23,696 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:23,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:23,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1008974663, now seen corresponding path program 1 times [2019-09-10 02:41:23,696 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:23,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:23,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:23,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:23,697 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:23,859 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:23,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:23,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:41:23,859 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:23,860 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:41:23,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:41:23,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:23,861 INFO L87 Difference]: Start difference. First operand 479 states and 650 transitions. Second operand 3 states. [2019-09-10 02:41:23,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:23,883 INFO L93 Difference]: Finished difference Result 557 states and 783 transitions. [2019-09-10 02:41:23,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:41:23,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-09-10 02:41:23,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:23,888 INFO L225 Difference]: With dead ends: 557 [2019-09-10 02:41:23,888 INFO L226 Difference]: Without dead ends: 557 [2019-09-10 02:41:23,889 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:23,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-09-10 02:41:23,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 556. [2019-09-10 02:41:23,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2019-09-10 02:41:23,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 782 transitions. [2019-09-10 02:41:23,910 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 782 transitions. Word has length 160 [2019-09-10 02:41:23,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:23,911 INFO L475 AbstractCegarLoop]: Abstraction has 556 states and 782 transitions. [2019-09-10 02:41:23,911 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:41:23,911 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 782 transitions. [2019-09-10 02:41:23,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-09-10 02:41:23,915 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:23,915 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:23,915 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:23,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:23,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1166153695, now seen corresponding path program 1 times [2019-09-10 02:41:23,916 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:23,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:23,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:23,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:23,917 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:24,026 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:24,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:24,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:41:24,027 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:24,028 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:41:24,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:41:24,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:24,028 INFO L87 Difference]: Start difference. First operand 556 states and 782 transitions. Second operand 3 states. [2019-09-10 02:41:24,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:24,051 INFO L93 Difference]: Finished difference Result 705 states and 1035 transitions. [2019-09-10 02:41:24,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:41:24,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-09-10 02:41:24,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:24,056 INFO L225 Difference]: With dead ends: 705 [2019-09-10 02:41:24,056 INFO L226 Difference]: Without dead ends: 705 [2019-09-10 02:41:24,057 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:24,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2019-09-10 02:41:24,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 704. [2019-09-10 02:41:24,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2019-09-10 02:41:24,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1034 transitions. [2019-09-10 02:41:24,083 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1034 transitions. Word has length 161 [2019-09-10 02:41:24,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:24,083 INFO L475 AbstractCegarLoop]: Abstraction has 704 states and 1034 transitions. [2019-09-10 02:41:24,084 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:41:24,084 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1034 transitions. [2019-09-10 02:41:24,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-09-10 02:41:24,088 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:24,088 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:24,088 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:24,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:24,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1633120217, now seen corresponding path program 1 times [2019-09-10 02:41:24,089 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:24,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:24,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:24,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:24,090 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:24,201 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:24,201 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:24,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:41:24,202 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:24,202 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:41:24,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:41:24,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:24,203 INFO L87 Difference]: Start difference. First operand 704 states and 1034 transitions. Second operand 3 states. [2019-09-10 02:41:24,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:24,224 INFO L93 Difference]: Finished difference Result 989 states and 1515 transitions. [2019-09-10 02:41:24,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:41:24,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-09-10 02:41:24,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:24,231 INFO L225 Difference]: With dead ends: 989 [2019-09-10 02:41:24,231 INFO L226 Difference]: Without dead ends: 989 [2019-09-10 02:41:24,232 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:24,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2019-09-10 02:41:24,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 988. [2019-09-10 02:41:24,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2019-09-10 02:41:24,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1514 transitions. [2019-09-10 02:41:24,264 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1514 transitions. Word has length 162 [2019-09-10 02:41:24,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:24,265 INFO L475 AbstractCegarLoop]: Abstraction has 988 states and 1514 transitions. [2019-09-10 02:41:24,265 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:41:24,265 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1514 transitions. [2019-09-10 02:41:24,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-09-10 02:41:24,270 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:24,270 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:24,271 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:24,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:24,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1343280992, now seen corresponding path program 1 times [2019-09-10 02:41:24,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:24,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:24,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:24,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:24,272 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:24,581 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-10 02:41:24,582 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:24,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:41:24,582 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:24,583 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:41:24,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:41:24,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:41:24,584 INFO L87 Difference]: Start difference. First operand 988 states and 1514 transitions. Second operand 7 states. [2019-09-10 02:41:27,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:27,240 INFO L93 Difference]: Finished difference Result 1198 states and 1777 transitions. [2019-09-10 02:41:27,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:41:27,241 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2019-09-10 02:41:27,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:27,248 INFO L225 Difference]: With dead ends: 1198 [2019-09-10 02:41:27,248 INFO L226 Difference]: Without dead ends: 1196 [2019-09-10 02:41:27,249 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:41:27,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2019-09-10 02:41:27,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1187. [2019-09-10 02:41:27,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1187 states. [2019-09-10 02:41:27,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1766 transitions. [2019-09-10 02:41:27,290 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1766 transitions. Word has length 165 [2019-09-10 02:41:27,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:27,291 INFO L475 AbstractCegarLoop]: Abstraction has 1187 states and 1766 transitions. [2019-09-10 02:41:27,291 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:41:27,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1766 transitions. [2019-09-10 02:41:27,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-09-10 02:41:27,296 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:27,296 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:27,296 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:27,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:27,297 INFO L82 PathProgramCache]: Analyzing trace with hash 217268504, now seen corresponding path program 1 times [2019-09-10 02:41:27,297 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:27,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:27,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:27,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:27,298 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:27,545 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-10 02:41:27,545 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:27,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-09-10 02:41:27,545 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:27,546 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-10 02:41:27,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-10 02:41:27,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-09-10 02:41:27,547 INFO L87 Difference]: Start difference. First operand 1187 states and 1766 transitions. Second operand 16 states. [2019-09-10 02:41:27,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:27,893 INFO L93 Difference]: Finished difference Result 1245 states and 1839 transitions. [2019-09-10 02:41:27,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 02:41:27,894 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 166 [2019-09-10 02:41:27,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:27,901 INFO L225 Difference]: With dead ends: 1245 [2019-09-10 02:41:27,902 INFO L226 Difference]: Without dead ends: 1219 [2019-09-10 02:41:27,902 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-09-10 02:41:27,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2019-09-10 02:41:27,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1215. [2019-09-10 02:41:27,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1215 states. [2019-09-10 02:41:27,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1801 transitions. [2019-09-10 02:41:27,942 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1801 transitions. Word has length 166 [2019-09-10 02:41:27,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:27,943 INFO L475 AbstractCegarLoop]: Abstraction has 1215 states and 1801 transitions. [2019-09-10 02:41:27,943 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-10 02:41:27,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1801 transitions. [2019-09-10 02:41:27,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-09-10 02:41:27,948 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:27,948 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:27,949 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:27,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:27,949 INFO L82 PathProgramCache]: Analyzing trace with hash 138441481, now seen corresponding path program 1 times [2019-09-10 02:41:27,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:27,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:27,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:27,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:27,950 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:28,127 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-10 02:41:28,127 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:28,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:41:28,127 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:28,129 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:41:28,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:41:28,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:41:28,130 INFO L87 Difference]: Start difference. First operand 1215 states and 1801 transitions. Second operand 8 states. [2019-09-10 02:41:28,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:28,978 INFO L93 Difference]: Finished difference Result 1671 states and 2385 transitions. [2019-09-10 02:41:28,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 02:41:28,979 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2019-09-10 02:41:28,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:28,988 INFO L225 Difference]: With dead ends: 1671 [2019-09-10 02:41:28,989 INFO L226 Difference]: Without dead ends: 1669 [2019-09-10 02:41:28,989 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:41:28,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2019-09-10 02:41:29,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1656. [2019-09-10 02:41:29,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1656 states. [2019-09-10 02:41:29,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2369 transitions. [2019-09-10 02:41:29,044 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2369 transitions. Word has length 175 [2019-09-10 02:41:29,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:29,045 INFO L475 AbstractCegarLoop]: Abstraction has 1656 states and 2369 transitions. [2019-09-10 02:41:29,045 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:41:29,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2369 transitions. [2019-09-10 02:41:29,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-09-10 02:41:29,051 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:29,051 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:29,051 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:29,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:29,052 INFO L82 PathProgramCache]: Analyzing trace with hash -868594112, now seen corresponding path program 1 times [2019-09-10 02:41:29,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:29,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:29,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:29,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:29,053 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:29,302 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-10 02:41:29,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:29,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-09-10 02:41:29,303 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:29,303 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-10 02:41:29,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-10 02:41:29,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2019-09-10 02:41:29,304 INFO L87 Difference]: Start difference. First operand 1656 states and 2369 transitions. Second operand 15 states. [2019-09-10 02:41:29,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:29,827 INFO L93 Difference]: Finished difference Result 1655 states and 2365 transitions. [2019-09-10 02:41:29,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:41:29,828 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 176 [2019-09-10 02:41:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:29,836 INFO L225 Difference]: With dead ends: 1655 [2019-09-10 02:41:29,837 INFO L226 Difference]: Without dead ends: 1655 [2019-09-10 02:41:29,837 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2019-09-10 02:41:29,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2019-09-10 02:41:29,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1654. [2019-09-10 02:41:29,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2019-09-10 02:41:29,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2364 transitions. [2019-09-10 02:41:29,887 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2364 transitions. Word has length 176 [2019-09-10 02:41:29,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:29,887 INFO L475 AbstractCegarLoop]: Abstraction has 1654 states and 2364 transitions. [2019-09-10 02:41:29,888 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-10 02:41:29,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2364 transitions. [2019-09-10 02:41:29,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-09-10 02:41:29,894 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:29,895 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:29,895 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:29,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:29,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1230241458, now seen corresponding path program 2 times [2019-09-10 02:41:29,896 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:29,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:29,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:29,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:29,897 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:30,070 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-10 02:41:30,070 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:30,071 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:41:30,071 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:41:30,072 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:41:30,073 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:30,073 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 02:41:30,094 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 02:41:30,094 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:41:30,429 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-09-10 02:41:30,429 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:41:30,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-10 02:41:30,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:41:30,668 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-10 02:41:30,668 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:41:31,214 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-10 02:41:31,223 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:41:31,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-09-10 02:41:31,223 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:31,224 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:41:31,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:41:31,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-09-10 02:41:31,225 INFO L87 Difference]: Start difference. First operand 1654 states and 2364 transitions. Second operand 8 states. [2019-09-10 02:41:31,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:31,999 INFO L93 Difference]: Finished difference Result 3266 states and 4726 transitions. [2019-09-10 02:41:32,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 02:41:32,000 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 176 [2019-09-10 02:41:32,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:32,031 INFO L225 Difference]: With dead ends: 3266 [2019-09-10 02:41:32,031 INFO L226 Difference]: Without dead ends: 3264 [2019-09-10 02:41:32,032 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 341 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2019-09-10 02:41:32,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3264 states. [2019-09-10 02:41:32,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3264 to 3255. [2019-09-10 02:41:32,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2019-09-10 02:41:32,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4715 transitions. [2019-09-10 02:41:32,188 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4715 transitions. Word has length 176 [2019-09-10 02:41:32,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:32,189 INFO L475 AbstractCegarLoop]: Abstraction has 3255 states and 4715 transitions. [2019-09-10 02:41:32,189 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:41:32,189 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4715 transitions. [2019-09-10 02:41:32,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-09-10 02:41:32,207 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:32,208 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:32,208 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:32,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:32,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1065000320, now seen corresponding path program 1 times [2019-09-10 02:41:32,209 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:32,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:32,210 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:41:32,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:32,211 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:32,430 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-10 02:41:32,430 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:32,430 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:41:32,431 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2019-09-10 02:41:32,433 INFO L207 CegarAbsIntRunner]: [59], [62], [63], [66], [72], [73], [76], [85], [120], [149], [152], [153], [154], [156], [266], [269], [270], [314], [316], [330], [333], [342], [345], [347], [348], [351], [361], [435], [620], [622], [623], [624], [660], [663], [677], [706], [709], [715], [716], [717], [718], [735], [737], [741], [744], [768], [772], [775], [783], [786], [813], [822], [826], [828], [830], [833], [840], [847], [850], [852], [986], [989], [1003], [1060], [1062], [1065], [1067], [1070], [1130], [1202], [1206], [1217], [1220], [1259], [1261], [1374], [1377], [1379], [1382], [1391], [1397], [1400], [1409], [1463], [1466], [1475], [1598], [1600], [1602], [1604], [1605], [1638], [1648], [1649], [1650], [1651], [1652], [1653], [1656], [1657], [1658], [1659], [1672], [1673], [1674], [1675], [1676], [1682], [1683], [1708], [1709], [1726], [1727], [1740], [1746], [1747], [1748], [1749], [1750], [1751], [1752], [1753], [1754], [1755], [1756], [1757], [1758], [1759], [1760], [1762], [1763], [1764], [1765], [1780], [1781], [1796], [1798], [1799], [1800], [1801], [1802], [1804], [1805], [1806], [1808], [1809], [1810], [1811], [1812], [1813], [1814], [1826], [1827], [1828], [1829], [1830], [1831], [1832], [1833], [1834] [2019-09-10 02:41:32,476 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:41:32,476 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:41:32,630 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:41:32,631 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 290 root evaluator evaluations with a maximum evaluation depth of 0. Performed 290 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 364 variables. [2019-09-10 02:41:32,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:32,637 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:41:32,753 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:41:32,753 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:41:32,760 INFO L420 sIntCurrentIteration]: We unified 176 AI predicates to 176 [2019-09-10 02:41:32,760 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:41:32,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:41:32,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-10 02:41:32,762 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:32,762 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:41:32,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:41:32,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:32,763 INFO L87 Difference]: Start difference. First operand 3255 states and 4715 transitions. Second operand 2 states. [2019-09-10 02:41:32,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:32,764 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:41:32,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:41:32,764 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 177 [2019-09-10 02:41:32,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:32,764 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:41:32,765 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:41:32,765 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:32,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:41:32,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:41:32,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:41:32,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:41:32,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 177 [2019-09-10 02:41:32,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:32,766 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:41:32,766 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:41:32,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:41:32,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:41:32,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:41:32 BoogieIcfgContainer [2019-09-10 02:41:32,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:41:32,776 INFO L168 Benchmark]: Toolchain (without parser) took 13929.54 ms. Allocated memory was 134.2 MB in the beginning and 495.5 MB in the end (delta: 361.2 MB). Free memory was 87.8 MB in the beginning and 159.6 MB in the end (delta: -71.8 MB). Peak memory consumption was 289.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:32,778 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:41:32,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1070.73 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 87.6 MB in the beginning and 138.4 MB in the end (delta: -50.8 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:32,782 INFO L168 Benchmark]: Boogie Preprocessor took 172.51 ms. Allocated memory is still 201.3 MB. Free memory was 138.4 MB in the beginning and 129.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:32,790 INFO L168 Benchmark]: RCFGBuilder took 1956.30 ms. Allocated memory was 201.3 MB in the beginning and 261.6 MB in the end (delta: 60.3 MB). Free memory was 129.1 MB in the beginning and 177.5 MB in the end (delta: -48.4 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:32,791 INFO L168 Benchmark]: TraceAbstraction took 10726.01 ms. Allocated memory was 261.6 MB in the beginning and 495.5 MB in the end (delta: 233.8 MB). Free memory was 175.4 MB in the beginning and 159.6 MB in the end (delta: 15.9 MB). Peak memory consumption was 249.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:32,803 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 134.2 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1070.73 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 87.6 MB in the beginning and 138.4 MB in the end (delta: -50.8 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 172.51 ms. Allocated memory is still 201.3 MB. Free memory was 138.4 MB in the beginning and 129.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1956.30 ms. Allocated memory was 201.3 MB in the beginning and 261.6 MB in the end (delta: 60.3 MB). Free memory was 129.1 MB in the beginning and 177.5 MB in the end (delta: -48.4 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10726.01 ms. Allocated memory was 261.6 MB in the beginning and 495.5 MB in the end (delta: 233.8 MB). Free memory was 175.4 MB in the beginning and 159.6 MB in the end (delta: 15.9 MB). Peak memory consumption was 249.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2872]: 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 111 procedures, 749 locations, 1 error locations. SAFE Result, 10.6s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 5.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6607 SDtfs, 2317 SDslu, 25051 SDs, 0 SdLazy, 3456 SolverSat, 412 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 647 GetRequests, 546 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3255occurred in iteration=11, 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, 2.153409090909091 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 41 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 2150 NumberOfCodeBlocks, 2050 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2312 ConstructedInterpolants, 0 QuantifiedInterpolants, 536159 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1924 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 466/472 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...