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_spec6_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:11:10,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:11:10,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:11:10,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:11:10,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:11:10,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:11:10,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:11:10,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:11:10,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:11:10,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:11:10,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:11:10,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:11:10,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:11:10,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:11:10,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:11:10,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:11:10,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:11:10,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:11:10,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:11:10,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:11:10,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:11:10,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:11:10,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:11:10,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:11:10,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:11:10,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:11:10,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:11:10,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:11:10,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:11:10,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:11:10,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:11:10,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:11:10,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:11:10,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:11:10,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:11:10,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:11:10,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:11:10,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:11:10,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:11:10,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:11:10,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:11:10,862 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 [2019-10-13 23:11:10,877 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:11:10,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:11:10,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:11:10,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:11:10,879 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:11:10,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:11:10,879 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:11:10,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:11:10,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:11:10,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:11:10,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:11:10,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:11:10,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:11:10,881 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:11:10,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:11:10,881 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:11:10,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:11:10,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:11:10,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:11:10,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:11:10,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:11:10,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:11:10,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:11:10,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:11:10,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:11:10,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:11:10,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:11:10,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:11:10,884 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 [2019-10-13 23:11:11,168 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:11:11,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:11:11,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:11:11,188 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:11:11,188 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:11:11,189 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product21.cil.c [2019-10-13 23:11:11,253 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13042f1df/053f4d18fb164abeb60957e8440d139b/FLAG96f0cf681 [2019-10-13 23:11:11,879 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:11:11,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product21.cil.c [2019-10-13 23:11:11,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13042f1df/053f4d18fb164abeb60957e8440d139b/FLAG96f0cf681 [2019-10-13 23:11:12,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13042f1df/053f4d18fb164abeb60957e8440d139b [2019-10-13 23:11:12,067 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:11:12,071 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:11:12,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:12,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:11:12,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:11:12,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:12" (1/1) ... [2019-10-13 23:11:12,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2322f431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:12, skipping insertion in model container [2019-10-13 23:11:12,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:12" (1/1) ... [2019-10-13 23:11:12,090 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:11:12,172 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:11:12,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:12,962 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:11:13,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:13,133 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:11:13,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:13 WrapperNode [2019-10-13 23:11:13,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:13,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:11:13,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:11:13,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:11:13,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:13" (1/1) ... [2019-10-13 23:11:13,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:13" (1/1) ... [2019-10-13 23:11:13,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:13" (1/1) ... [2019-10-13 23:11:13,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:13" (1/1) ... [2019-10-13 23:11:13,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:13" (1/1) ... [2019-10-13 23:11:13,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:13" (1/1) ... [2019-10-13 23:11:13,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:13" (1/1) ... [2019-10-13 23:11:13,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:11:13,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:11:13,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:11:13,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:11:13,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:13" (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 [2019-10-13 23:11:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:11:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:11:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:11:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:13,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:13,445 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:11:13,445 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:11:13,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:11:13,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:11:13,446 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:11:13,446 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:11:13,446 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:11:13,447 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:11:13,447 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:11:13,447 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:11:13,447 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:11:13,447 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 23:11:13,448 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:11:13,448 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:11:13,448 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:11:13,451 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:11:13,451 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:11:13,451 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:11:13,452 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:11:13,452 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:11:13,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:11:13,452 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:11:13,452 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:11:13,453 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:11:13,453 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:11:13,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:11:13,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:11:13,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:11:13,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:11:13,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:11:13,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:11:13,455 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:11:13,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:11:13,456 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:11:13,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:11:13,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:11:13,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:11:13,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:11:13,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:11:13,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:11:13,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:11:13,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:11:13,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:11:13,459 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:11:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:11:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:11:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:11:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:11:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:11:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:11:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:11:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:11:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:11:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:11:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:11:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:11:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:11:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:11:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:11:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:11:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:11:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:11:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:11:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:11:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:11:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:11:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:11:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:11:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:11:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:11:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:11:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:11:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:11:13,468 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:11:13,468 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:11:13,469 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:11:13,469 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:11:13,469 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:11:13,469 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:11:13,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:11:13,469 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:11:13,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:11:13,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:11:13,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:11:13,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:11:13,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:11:13,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:11:13,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:11:13,470 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:11:13,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:11:13,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:11:13,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:11:13,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:11:13,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:11:13,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:11:13,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:11:13,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:11:13,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:11:13,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:11:13,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:13,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:13,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:13,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:11:13,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:11:13,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:11:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:11:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:11:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:11:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:11:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:11:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:11:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:11:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:11:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:11:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:11:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:11:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:11:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:11:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:11:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:11:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:11:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:11:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:11:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:11:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:11:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:11:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:11:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:11:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:11:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:11:13,485 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:11:13,485 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:11:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:11:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:11:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:11:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:11:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:11:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:11:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:11:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:11:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:11:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:11:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:11:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:11:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:11:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:11:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:11:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:11:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:11:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:11:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:11:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 23:11:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:11:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:11:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:11:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:11:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:11:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:11:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:11:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:11:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:11:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:11:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:11:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:11:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:11:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:11:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:11:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:11:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:11:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:11:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:11:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:11:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:11:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:11:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:11:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:11:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:11:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:11:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:11:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:11:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:11:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:11:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:11:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:11:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:11:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:11:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:11:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:11:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:11:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:11:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:11:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:11:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:11:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:11:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:11:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:11:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:11:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:11:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:11:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:11:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:11:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:11:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:11:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:11:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:11:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:11:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:11:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:11:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:11:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:11:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:11:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:11:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:11:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:11:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:11:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:11:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:11:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:11:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:11:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:11:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:11:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:11:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:11:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:11:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:11:18,042 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:11:18,043 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:11:18,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:18 BoogieIcfgContainer [2019-10-13 23:11:18,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:11:18,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:11:18,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:11:18,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:11:18,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:11:12" (1/3) ... [2019-10-13 23:11:18,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197558b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:18, skipping insertion in model container [2019-10-13 23:11:18,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:13" (2/3) ... [2019-10-13 23:11:18,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197558b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:18, skipping insertion in model container [2019-10-13 23:11:18,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:18" (3/3) ... [2019-10-13 23:11:18,054 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product21.cil.c [2019-10-13 23:11:18,064 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:11:18,075 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:11:18,088 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:11:18,126 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:11:18,126 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:11:18,126 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:11:18,127 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:11:18,131 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:11:18,131 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:11:18,131 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:11:18,131 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:11:18,167 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states. [2019-10-13 23:11:18,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-13 23:11:18,198 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:18,200 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:18,204 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:18,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:18,210 INFO L82 PathProgramCache]: Analyzing trace with hash 2061290457, now seen corresponding path program 1 times [2019-10-13 23:11:18,222 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:18,223 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044590896] [2019-10-13 23:11:18,224 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:18,224 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:18,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:18,967 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:18,968 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044590896] [2019-10-13 23:11:18,968 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:18,969 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:11:18,969 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172404421] [2019-10-13 23:11:18,977 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:11:18,978 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:18,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:11:18,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:11:18,994 INFO L87 Difference]: Start difference. First operand 400 states. Second operand 2 states. [2019-10-13 23:11:19,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:19,061 INFO L93 Difference]: Finished difference Result 582 states and 696 transitions. [2019-10-13 23:11:19,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:11:19,062 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-10-13 23:11:19,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:19,087 INFO L225 Difference]: With dead ends: 582 [2019-10-13 23:11:19,089 INFO L226 Difference]: Without dead ends: 373 [2019-10-13 23:11:19,101 INFO L600 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 [2019-10-13 23:11:19,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2019-10-13 23:11:19,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2019-10-13 23:11:19,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-10-13 23:11:19,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 442 transitions. [2019-10-13 23:11:19,204 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 442 transitions. Word has length 143 [2019-10-13 23:11:19,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:19,206 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 442 transitions. [2019-10-13 23:11:19,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:11:19,207 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 442 transitions. [2019-10-13 23:11:19,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-13 23:11:19,213 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:19,214 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:19,214 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:19,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:19,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1103720808, now seen corresponding path program 1 times [2019-10-13 23:11:19,215 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:19,215 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890522685] [2019-10-13 23:11:19,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:19,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:19,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:19,463 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:19,463 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890522685] [2019-10-13 23:11:19,464 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:19,464 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:19,464 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417642141] [2019-10-13 23:11:19,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:19,467 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:19,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:19,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:19,467 INFO L87 Difference]: Start difference. First operand 373 states and 442 transitions. Second operand 3 states. [2019-10-13 23:11:19,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:19,539 INFO L93 Difference]: Finished difference Result 567 states and 664 transitions. [2019-10-13 23:11:19,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:19,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-13 23:11:19,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:19,547 INFO L225 Difference]: With dead ends: 567 [2019-10-13 23:11:19,547 INFO L226 Difference]: Without dead ends: 375 [2019-10-13 23:11:19,550 INFO L600 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 [2019-10-13 23:11:19,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-10-13 23:11:19,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2019-10-13 23:11:19,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-10-13 23:11:19,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 444 transitions. [2019-10-13 23:11:19,605 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 444 transitions. Word has length 144 [2019-10-13 23:11:19,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:19,605 INFO L462 AbstractCegarLoop]: Abstraction has 375 states and 444 transitions. [2019-10-13 23:11:19,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:19,606 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 444 transitions. [2019-10-13 23:11:19,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-13 23:11:19,611 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:19,612 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:19,612 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:19,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:19,613 INFO L82 PathProgramCache]: Analyzing trace with hash -730650997, now seen corresponding path program 1 times [2019-10-13 23:11:19,613 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:19,613 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891985527] [2019-10-13 23:11:19,614 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:19,614 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:19,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:19,890 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:19,891 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891985527] [2019-10-13 23:11:19,891 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:19,891 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:19,892 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968859979] [2019-10-13 23:11:19,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:19,895 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:19,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:19,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:19,895 INFO L87 Difference]: Start difference. First operand 375 states and 444 transitions. Second operand 3 states. [2019-10-13 23:11:19,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:19,947 INFO L93 Difference]: Finished difference Result 734 states and 898 transitions. [2019-10-13 23:11:19,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:19,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-13 23:11:19,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:19,952 INFO L225 Difference]: With dead ends: 734 [2019-10-13 23:11:19,952 INFO L226 Difference]: Without dead ends: 417 [2019-10-13 23:11:19,954 INFO L600 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 [2019-10-13 23:11:19,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2019-10-13 23:11:19,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 416. [2019-10-13 23:11:19,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2019-10-13 23:11:19,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 515 transitions. [2019-10-13 23:11:19,977 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 515 transitions. Word has length 149 [2019-10-13 23:11:19,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:19,978 INFO L462 AbstractCegarLoop]: Abstraction has 416 states and 515 transitions. [2019-10-13 23:11:19,978 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:19,978 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 515 transitions. [2019-10-13 23:11:19,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 23:11:19,981 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:19,981 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:19,981 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:19,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:19,982 INFO L82 PathProgramCache]: Analyzing trace with hash 819131061, now seen corresponding path program 1 times [2019-10-13 23:11:19,982 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:19,982 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723958732] [2019-10-13 23:11:19,982 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:19,983 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:19,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:20,700 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:20,701 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723958732] [2019-10-13 23:11:20,701 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:20,701 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-13 23:11:20,702 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124421077] [2019-10-13 23:11:20,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-13 23:11:20,704 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:20,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-13 23:11:20,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-13 23:11:20,706 INFO L87 Difference]: Start difference. First operand 416 states and 515 transitions. Second operand 24 states. [2019-10-13 23:11:28,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:28,609 INFO L93 Difference]: Finished difference Result 1110 states and 1367 transitions. [2019-10-13 23:11:28,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-13 23:11:28,610 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 150 [2019-10-13 23:11:28,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:28,625 INFO L225 Difference]: With dead ends: 1110 [2019-10-13 23:11:28,625 INFO L226 Difference]: Without dead ends: 926 [2019-10-13 23:11:28,629 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=272, Invalid=2484, Unknown=0, NotChecked=0, Total=2756 [2019-10-13 23:11:28,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2019-10-13 23:11:28,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 913. [2019-10-13 23:11:28,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2019-10-13 23:11:28,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1110 transitions. [2019-10-13 23:11:28,738 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1110 transitions. Word has length 150 [2019-10-13 23:11:28,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:28,741 INFO L462 AbstractCegarLoop]: Abstraction has 913 states and 1110 transitions. [2019-10-13 23:11:28,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-13 23:11:28,742 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1110 transitions. [2019-10-13 23:11:28,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 23:11:28,748 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:28,749 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:28,749 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:28,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:28,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1325372908, now seen corresponding path program 1 times [2019-10-13 23:11:28,749 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:28,750 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749414063] [2019-10-13 23:11:28,750 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:28,750 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:28,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:29,656 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:11:29,657 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749414063] [2019-10-13 23:11:29,657 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684904649] [2019-10-13 23:11:29,657 INFO L94 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 [2019-10-13 23:11:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:30,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 2772 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:11:30,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:11:30,491 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:30,491 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:11:30,762 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:30,762 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1378496116] [2019-10-13 23:11:30,794 INFO L162 IcfgInterpreter]: Started Sifa with 143 locations of interest [2019-10-13 23:11:30,794 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:11:30,801 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:11:30,809 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:11:30,810 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs