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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:50:34,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:50:34,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:50:34,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:50:34,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:50:34,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:50:34,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:50:34,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:50:34,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:50:34,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:50:34,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:50:34,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:50:34,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:50:34,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:50:34,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:50:34,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:50:34,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:50:34,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:50:34,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:50:34,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:50:34,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:50:34,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:50:34,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:50:34,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:50:34,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:50:34,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:50:34,949 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:50:34,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:50:34,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:50:34,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:50:34,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:50:34,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:50:34,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:50:34,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:50:34,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:50:34,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:50:34,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:50:34,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:50:34,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:50:34,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:50:34,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:50:34,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:50:35,003 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:50:35,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:50:35,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:50:35,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:50:35,009 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:50:35,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:50:35,009 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:50:35,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:50:35,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:50:35,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:50:35,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:50:35,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:50:35,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:50:35,013 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:50:35,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:50:35,013 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:50:35,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:50:35,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:50:35,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:50:35,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:50:35,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:50:35,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:50:35,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:50:35,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:50:35,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:50:35,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:50:35,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:50:35,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:50:35,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:50:35,354 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:50:35,371 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:50:35,376 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:50:35,377 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:50:35,378 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:50:35,379 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product35.cil.c [2019-10-07 14:50:35,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcb300e06/542bc6a97c3d44118657fcc153b6d362/FLAGe9f39dcfb [2019-10-07 14:50:36,191 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:50:36,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product35.cil.c [2019-10-07 14:50:36,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcb300e06/542bc6a97c3d44118657fcc153b6d362/FLAGe9f39dcfb [2019-10-07 14:50:36,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcb300e06/542bc6a97c3d44118657fcc153b6d362 [2019-10-07 14:50:36,311 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:50:36,313 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:50:36,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:50:36,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:50:36,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:50:36,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:50:36" (1/1) ... [2019-10-07 14:50:36,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d15e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:36, skipping insertion in model container [2019-10-07 14:50:36,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:50:36" (1/1) ... [2019-10-07 14:50:36,336 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:50:36,421 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:50:37,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:50:37,165 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:50:37,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:50:37,490 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:50:37,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:37 WrapperNode [2019-10-07 14:50:37,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:50:37,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:50:37,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:50:37,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:50:37,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:37" (1/1) ... [2019-10-07 14:50:37,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:37" (1/1) ... [2019-10-07 14:50:37,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:37" (1/1) ... [2019-10-07 14:50:37,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:37" (1/1) ... [2019-10-07 14:50:37,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:37" (1/1) ... [2019-10-07 14:50:37,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:37" (1/1) ... [2019-10-07 14:50:37,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:37" (1/1) ... [2019-10-07 14:50:37,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:50:37,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:50:37,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:50:37,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:50:37,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:37" (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 [2019-10-07 14:50:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:50:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:50:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:50:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:50:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 14:50:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 14:50:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:50:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:50:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:50:37,794 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:50:37,794 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:50:37,794 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:50:37,795 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:50:37,795 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:50:37,795 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:50:37,795 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:50:37,795 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:50:37,795 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:50:37,796 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:50:37,797 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:50:37,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:50:37,798 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:50:37,798 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:50:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:50:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:50:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:50:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:50:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:50:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:50:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:50:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:50:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:50:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:50:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:50:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:50:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:50:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:50:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:50:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:50:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:50:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:50:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:50:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:50:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:50:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:50:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:50:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:50:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:50:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:50:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:50:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:50:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:50:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:50:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:50:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:50:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:50:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:50:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:50:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:50:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:50:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:50:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:50:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:50:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:50:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:50:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:50:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:50:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:50:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:50:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:50:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:50:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:50:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:50:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:50:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:50:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:50:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 14:50:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:50:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:50:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:50:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:50:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:50:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 14:50:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:50:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:50:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:50:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:50:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:50:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:50:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:50:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:50:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:50:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:50:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:50:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:50:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:50:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:50:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:50:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:50:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:50:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:50:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:50:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:50:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:50:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:50:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:50:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:50:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:50:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:50:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:50:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:50:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:50:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:50:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:50:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:50:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:50:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:50:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:50:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:50:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:50:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:50:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:50:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:50:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:50:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:50:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:50:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:50:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:50:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:50:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:50:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:50:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:50:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:50:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:50:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:50:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:50:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:50:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:50:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:50:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:50:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 14:50:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 14:50:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:50:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:50:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:50:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:50:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:50:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:50:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:50:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:50:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:50:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:50:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:50:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:50:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:50:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:50:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:50:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:50:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:50:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:50:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:50:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:50:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:50:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:50:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:50:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:50:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:50:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:50:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:50:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:50:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:50:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:50:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:50:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:50:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:50:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:50:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:50:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:50:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:50:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:50:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:50:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:50:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:50:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:50:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:50:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:50:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:50:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:50:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:50:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:50:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:50:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:50:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:50:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:50:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:50:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:50:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:50:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:50:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:50:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:50:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:50:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:50:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:50:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:50:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:50:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:50:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:50:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:50:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:50:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:50:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:50:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:50:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:50:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:50:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:50:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:50:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:50:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:50:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:50:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:50:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:50:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:50:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:50:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:50:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:50:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 14:50:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:50:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:50:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:50:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:50:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 14:50:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:50:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:50:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:50:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:50:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:50:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:50:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:50:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:50:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:50:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:50:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:50:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:50:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:50:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:50:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:50:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:50:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:50:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:50:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:50:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:50:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:50:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:50:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:50:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:50:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:50:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:50:42,239 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:50:42,240 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:50:42,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:50:42 BoogieIcfgContainer [2019-10-07 14:50:42,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:50:42,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:50:42,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:50:42,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:50:42,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:50:36" (1/3) ... [2019-10-07 14:50:42,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e0d5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:50:42, skipping insertion in model container [2019-10-07 14:50:42,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:37" (2/3) ... [2019-10-07 14:50:42,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e0d5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:50:42, skipping insertion in model container [2019-10-07 14:50:42,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:50:42" (3/3) ... [2019-10-07 14:50:42,250 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product35.cil.c [2019-10-07 14:50:42,260 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:50:42,273 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:50:42,285 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:50:42,315 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:50:42,316 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:50:42,316 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:50:42,316 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:50:42,316 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:50:42,316 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:50:42,316 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:50:42,317 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:50:42,347 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states. [2019-10-07 14:50:42,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-07 14:50:42,366 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:42,367 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:42,370 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:42,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:42,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1792393763, now seen corresponding path program 1 times [2019-10-07 14:50:42,384 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:42,384 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:42,384 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:42,385 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:42,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:43,119 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:50:43,120 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:43,120 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:43,120 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:50:43,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:50:43,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:50:43,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:50:43,142 INFO L87 Difference]: Start difference. First operand 481 states. Second operand 2 states. [2019-10-07 14:50:43,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:43,265 INFO L93 Difference]: Finished difference Result 737 states and 887 transitions. [2019-10-07 14:50:43,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:50:43,266 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 176 [2019-10-07 14:50:43,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:43,302 INFO L225 Difference]: With dead ends: 737 [2019-10-07 14:50:43,303 INFO L226 Difference]: Without dead ends: 454 [2019-10-07 14:50:43,313 INFO L606 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 [2019-10-07 14:50:43,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-10-07 14:50:43,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2019-10-07 14:50:43,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2019-10-07 14:50:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 538 transitions. [2019-10-07 14:50:43,436 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 538 transitions. Word has length 176 [2019-10-07 14:50:43,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:43,438 INFO L462 AbstractCegarLoop]: Abstraction has 454 states and 538 transitions. [2019-10-07 14:50:43,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:50:43,438 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 538 transitions. [2019-10-07 14:50:43,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-07 14:50:43,445 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:43,445 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:43,445 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:43,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:43,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1638575725, now seen corresponding path program 1 times [2019-10-07 14:50:43,446 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:43,446 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:43,447 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:43,447 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:43,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:43,799 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:50:43,800 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:43,800 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:43,800 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:50:43,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:50:43,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:50:43,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:50:43,803 INFO L87 Difference]: Start difference. First operand 454 states and 538 transitions. Second operand 3 states. [2019-10-07 14:50:43,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:43,870 INFO L93 Difference]: Finished difference Result 722 states and 849 transitions. [2019-10-07 14:50:43,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:50:43,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-07 14:50:43,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:43,879 INFO L225 Difference]: With dead ends: 722 [2019-10-07 14:50:43,879 INFO L226 Difference]: Without dead ends: 456 [2019-10-07 14:50:43,881 INFO L606 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 [2019-10-07 14:50:43,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2019-10-07 14:50:43,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2019-10-07 14:50:43,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2019-10-07 14:50:43,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 540 transitions. [2019-10-07 14:50:43,942 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 540 transitions. Word has length 177 [2019-10-07 14:50:43,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:43,943 INFO L462 AbstractCegarLoop]: Abstraction has 456 states and 540 transitions. [2019-10-07 14:50:43,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:50:43,943 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 540 transitions. [2019-10-07 14:50:43,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-07 14:50:43,951 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:43,952 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:43,952 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:43,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:43,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1306047726, now seen corresponding path program 1 times [2019-10-07 14:50:43,953 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:43,953 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:43,953 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:43,953 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:43,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:44,200 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:50:44,200 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:44,201 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:44,201 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:50:44,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:50:44,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:50:44,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:50:44,204 INFO L87 Difference]: Start difference. First operand 456 states and 540 transitions. Second operand 3 states. [2019-10-07 14:50:44,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:44,326 INFO L93 Difference]: Finished difference Result 898 states and 1093 transitions. [2019-10-07 14:50:44,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:50:44,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-07 14:50:44,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:44,333 INFO L225 Difference]: With dead ends: 898 [2019-10-07 14:50:44,333 INFO L226 Difference]: Without dead ends: 500 [2019-10-07 14:50:44,334 INFO L606 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 [2019-10-07 14:50:44,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2019-10-07 14:50:44,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 499. [2019-10-07 14:50:44,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2019-10-07 14:50:44,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 614 transitions. [2019-10-07 14:50:44,368 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 614 transitions. Word has length 189 [2019-10-07 14:50:44,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:44,369 INFO L462 AbstractCegarLoop]: Abstraction has 499 states and 614 transitions. [2019-10-07 14:50:44,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:50:44,369 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 614 transitions. [2019-10-07 14:50:44,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-07 14:50:44,376 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:44,377 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:44,377 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:44,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:44,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1586240380, now seen corresponding path program 1 times [2019-10-07 14:50:44,378 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:44,378 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:44,378 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:44,378 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:44,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:45,229 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:45,229 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:45,229 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:45,230 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-07 14:50:45,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 14:50:45,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 14:50:45,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:50:45,233 INFO L87 Difference]: Start difference. First operand 499 states and 614 transitions. Second operand 28 states. [2019-10-07 14:50:56,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:56,067 INFO L93 Difference]: Finished difference Result 1114 states and 1382 transitions. [2019-10-07 14:50:56,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-07 14:50:56,068 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 190 [2019-10-07 14:50:56,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:56,075 INFO L225 Difference]: With dead ends: 1114 [2019-10-07 14:50:56,075 INFO L226 Difference]: Without dead ends: 856 [2019-10-07 14:50:56,077 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=178, Invalid=2078, Unknown=0, NotChecked=0, Total=2256 [2019-10-07 14:50:56,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-10-07 14:50:56,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 827. [2019-10-07 14:50:56,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-10-07 14:50:56,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1025 transitions. [2019-10-07 14:50:56,125 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1025 transitions. Word has length 190 [2019-10-07 14:50:56,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:56,126 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 1025 transitions. [2019-10-07 14:50:56,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 14:50:56,127 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1025 transitions. [2019-10-07 14:50:56,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-07 14:50:56,131 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:56,131 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:56,131 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:56,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:56,132 INFO L82 PathProgramCache]: Analyzing trace with hash -2055650954, now seen corresponding path program 1 times [2019-10-07 14:50:56,132 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:56,132 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:56,133 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:56,133 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:56,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:56,390 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:56,390 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:56,391 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:56,391 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:50:56,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:50:56,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:50:56,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:50:56,392 INFO L87 Difference]: Start difference. First operand 827 states and 1025 transitions. Second operand 10 states. [2019-10-07 14:50:56,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:56,479 INFO L93 Difference]: Finished difference Result 1413 states and 1765 transitions. [2019-10-07 14:50:56,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:50:56,480 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2019-10-07 14:50:56,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:56,488 INFO L225 Difference]: With dead ends: 1413 [2019-10-07 14:50:56,488 INFO L226 Difference]: Without dead ends: 847 [2019-10-07 14:50:56,492 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:50:56,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2019-10-07 14:50:56,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 831. [2019-10-07 14:50:56,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2019-10-07 14:50:56,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1029 transitions. [2019-10-07 14:50:56,539 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1029 transitions. Word has length 194 [2019-10-07 14:50:56,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:56,542 INFO L462 AbstractCegarLoop]: Abstraction has 831 states and 1029 transitions. [2019-10-07 14:50:56,543 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:50:56,543 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1029 transitions. [2019-10-07 14:50:56,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-07 14:50:56,547 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:56,547 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:56,547 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:56,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:56,548 INFO L82 PathProgramCache]: Analyzing trace with hash 788401274, now seen corresponding path program 1 times [2019-10-07 14:50:56,548 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:56,548 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:56,548 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:56,549 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:56,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:57,637 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:57,637 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:57,637 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:57,638 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2019-10-07 14:50:57,638 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-10-07 14:50:57,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-10-07 14:50:57,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1097, Unknown=0, NotChecked=0, Total=1190 [2019-10-07 14:50:57,639 INFO L87 Difference]: Start difference. First operand 831 states and 1029 transitions. Second operand 35 states. [2019-10-07 14:51:17,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:51:17,754 INFO L93 Difference]: Finished difference Result 2141 states and 2686 transitions. [2019-10-07 14:51:17,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-10-07 14:51:17,756 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 196 [2019-10-07 14:51:17,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:51:17,766 INFO L225 Difference]: With dead ends: 2141 [2019-10-07 14:51:17,767 INFO L226 Difference]: Without dead ends: 1567 [2019-10-07 14:51:17,771 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=335, Invalid=4495, Unknown=0, NotChecked=0, Total=4830 [2019-10-07 14:51:17,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2019-10-07 14:51:17,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1547. [2019-10-07 14:51:17,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1547 states. [2019-10-07 14:51:17,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 1944 transitions. [2019-10-07 14:51:17,852 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 1944 transitions. Word has length 196 [2019-10-07 14:51:17,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:51:17,853 INFO L462 AbstractCegarLoop]: Abstraction has 1547 states and 1944 transitions. [2019-10-07 14:51:17,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-10-07 14:51:17,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 1944 transitions. [2019-10-07 14:51:17,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2019-10-07 14:51:17,858 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:51:17,858 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:51:17,859 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:51:17,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:51:17,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1746223915, now seen corresponding path program 1 times [2019-10-07 14:51:17,859 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:51:17,859 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:51:17,860 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:51:17,860 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:51:17,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:51:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:51:18,500 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:51:18,501 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:51:18,501 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:51:18,501 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2019-10-07 14:51:18,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-07 14:51:18,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-07 14:51:18,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2019-10-07 14:51:18,502 INFO L87 Difference]: Start difference. First operand 1547 states and 1944 transitions. Second operand 27 states. [2019-10-07 14:51:33,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:51:33,228 INFO L93 Difference]: Finished difference Result 4014 states and 5021 transitions. [2019-10-07 14:51:33,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 14:51:33,228 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 220 [2019-10-07 14:51:33,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:51:33,297 INFO L225 Difference]: With dead ends: 4014 [2019-10-07 14:51:33,298 INFO L226 Difference]: Without dead ends: 2706 [2019-10-07 14:51:33,306 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=273, Invalid=2807, Unknown=0, NotChecked=0, Total=3080 [2019-10-07 14:51:33,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2019-10-07 14:51:33,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 2625. [2019-10-07 14:51:33,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2625 states. [2019-10-07 14:51:33,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 3248 transitions. [2019-10-07 14:51:33,474 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 3248 transitions. Word has length 220 [2019-10-07 14:51:33,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:51:33,475 INFO L462 AbstractCegarLoop]: Abstraction has 2625 states and 3248 transitions. [2019-10-07 14:51:33,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-10-07 14:51:33,475 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 3248 transitions. [2019-10-07 14:51:33,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-07 14:51:33,482 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:51:33,482 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:51:33,483 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:51:33,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:51:33,483 INFO L82 PathProgramCache]: Analyzing trace with hash -273938538, now seen corresponding path program 1 times [2019-10-07 14:51:33,483 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:51:33,484 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:51:33,484 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:51:33,484 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:51:33,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:51:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:51:34,950 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:51:34,950 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:51:34,951 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:51:34,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:51:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:51:35,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 3321 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:51:35,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:51:35,835 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:51:35,835 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:51:36,197 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:51:36,197 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:51:36,236 INFO L162 IcfgInterpreter]: Started Sifa with 205 locations of interest [2019-10-07 14:51:36,236 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:51:36,248 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:51:36,255 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:51:36,255 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:53:04,813 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 709 [2019-10-07 14:53:09,688 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 349 DAG size of output: 283 [2019-10-07 14:53:10,082 WARN L191 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 760 [2019-10-07 14:53:10,385 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 760 [2019-10-07 14:53:10,628 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 760 [2019-10-07 14:53:10,825 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 14:53:11,494 WARN L191 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:53:12,222 WARN L191 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:53:12,941 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:53:13,108 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 14:53:13,811 WARN L191 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:53:15,097 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1062 DAG size of output: 1060 [2019-10-07 14:53:15,819 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:53:15,969 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 14:53:16,681 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:53:17,343 WARN L191 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:53:18,055 WARN L191 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:53:18,179 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 14:53:18,846 WARN L191 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:53:18,873 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 571 for LOIs [2019-10-07 14:53:19,228 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 673 [2019-10-07 14:53:19,339 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 673 [2019-10-07 14:53:19,469 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 453 [2019-10-07 14:53:19,952 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 973 [2019-10-07 14:53:19,954 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1124 for LOIs [2019-10-07 14:53:20,626 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:21,271 WARN L191 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:21,568 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:53:22,668 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:23,367 WARN L191 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:24,015 WARN L191 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:24,284 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:53:25,385 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:26,104 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:26,756 WARN L191 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:27,198 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:53:28,289 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:29,646 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1334 DAG size of output: 1124 [2019-10-07 14:53:30,310 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:30,672 WARN L191 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:53:31,744 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:32,398 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:33,058 WARN L191 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:33,337 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:53:34,411 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:35,041 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:35,678 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:35,945 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:53:37,028 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:37,662 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:38,304 WARN L191 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:38,560 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:53:39,636 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:40,285 WARN L191 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:40,914 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:41,176 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:53:42,242 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:42,876 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:43,509 WARN L191 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:43,767 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:53:44,833 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:45,468 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:46,096 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:46,357 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:53:47,425 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:48,072 WARN L191 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:48,704 WARN L191 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:48,967 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:53:50,037 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:50,660 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:51,295 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:51,557 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:53:52,626 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:53,256 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:53,887 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:53:54,145 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:53:55,199 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:56,323 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:57,384 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:53:57,656 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:53:58,718 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:00,693 WARN L191 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 1334 DAG size of output: 1332 [2019-10-07 14:54:01,749 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:02,016 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:54:03,073 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:04,159 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:05,218 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:05,478 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:54:06,553 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:07,649 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:54:08,727 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:54:08,992 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 14:54:10,055 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:54:12,156 WARN L191 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 1338 DAG size of output: 1334 [2019-10-07 14:54:13,206 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1334 [2019-10-07 14:54:13,478 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 14:54:14,542 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:54:16,482 WARN L191 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 1338 DAG size of output: 1334 [2019-10-07 14:54:17,551 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1334 [2019-10-07 14:54:17,811 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 14:54:18,881 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:54:20,303 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 1334 [2019-10-07 14:54:21,366 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1334 [2019-10-07 14:54:21,632 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 14:54:22,700 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:54:23,759 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:54:24,821 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:54:25,097 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 14:54:26,160 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1338 [2019-10-07 14:54:28,117 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1334 DAG size of output: 1332 [2019-10-07 14:54:29,169 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:29,440 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:54:30,478 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:32,405 WARN L191 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 1334 DAG size of output: 1332 [2019-10-07 14:54:33,458 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:33,757 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:54:34,805 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:35,863 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:36,918 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:37,179 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:54:38,231 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:40,192 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1334 DAG size of output: 1332 [2019-10-07 14:54:41,252 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:41,519 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:54:42,564 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:44,497 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1334 DAG size of output: 1332 [2019-10-07 14:54:45,551 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:45,814 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:54:46,861 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:47,903 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:48,948 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:49,202 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 657 [2019-10-07 14:54:50,243 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1332 [2019-10-07 14:54:52,188 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1338 DAG size of output: 1334 [2019-10-07 14:54:53,252 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1334 [2019-10-07 14:54:53,517 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 14:54:54,578 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:54:55,676 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:54:56,732 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:54:57,003 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 14:54:58,050 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:54:59,949 WARN L191 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 1338 DAG size of output: 1334 [2019-10-07 14:55:01,002 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1334 [2019-10-07 14:55:01,262 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 14:55:02,317 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:55:04,230 WARN L191 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 1338 DAG size of output: 1334 [2019-10-07 14:55:05,292 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1334 [2019-10-07 14:55:05,594 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 14:55:06,649 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:55:08,501 WARN L191 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 1340 DAG size of output: 1336 [2019-10-07 14:55:09,564 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1336 [2019-10-07 14:55:09,833 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 14:55:10,910 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1338 [2019-10-07 14:55:11,174 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:55:11,176 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:55:11,183 INFO L168 Benchmark]: Toolchain (without parser) took 274870.02 ms. Allocated memory was 147.8 MB in the beginning and 553.6 MB in the end (delta: 405.8 MB). Free memory was 102.8 MB in the beginning and 154.0 MB in the end (delta: -51.2 MB). Peak memory consumption was 354.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:11,183 INFO L168 Benchmark]: CDTParser took 1.33 ms. Allocated memory is still 147.8 MB. Free memory was 124.2 MB in the beginning and 124.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 14:55:11,184 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1173.78 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 129.3 MB in the end (delta: -26.7 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:11,184 INFO L168 Benchmark]: Boogie Preprocessor took 216.24 ms. Allocated memory is still 205.0 MB. Free memory was 129.3 MB in the beginning and 119.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:11,185 INFO L168 Benchmark]: RCFGBuilder took 4533.53 ms. Allocated memory was 205.0 MB in the beginning and 288.4 MB in the end (delta: 83.4 MB). Free memory was 119.5 MB in the beginning and 175.1 MB in the end (delta: -55.6 MB). Peak memory consumption was 119.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:11,186 INFO L168 Benchmark]: TraceAbstraction took 268938.28 ms. Allocated memory was 288.4 MB in the beginning and 553.6 MB in the end (delta: 265.3 MB). Free memory was 175.1 MB in the beginning and 154.0 MB in the end (delta: 21.1 MB). Peak memory consumption was 286.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:11,189 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.33 ms. Allocated memory is still 147.8 MB. Free memory was 124.2 MB in the beginning and 124.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1173.78 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 129.3 MB in the end (delta: -26.7 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 216.24 ms. Allocated memory is still 205.0 MB. Free memory was 129.3 MB in the beginning and 119.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4533.53 ms. Allocated memory was 205.0 MB in the beginning and 288.4 MB in the end (delta: 83.4 MB). Free memory was 119.5 MB in the beginning and 175.1 MB in the end (delta: -55.6 MB). Peak memory consumption was 119.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 268938.28 ms. Allocated memory was 288.4 MB in the beginning and 553.6 MB in the end (delta: 265.3 MB). Free memory was 175.1 MB in the beginning and 154.0 MB in the end (delta: 21.1 MB). Peak memory consumption was 286.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...