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_spec3_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:09:11,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:09:11,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:09:11,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:09:11,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:09:11,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:09:11,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:09:11,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:09:11,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:09:11,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:09:11,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:09:11,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:09:11,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:09:11,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:09:11,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:09:11,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:09:11,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:09:11,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:09:11,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:09:11,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:09:11,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:09:11,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:09:11,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:09:11,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:09:11,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:09:11,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:09:11,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:09:11,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:09:11,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:09:11,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:09:11,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:09:11,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:09:11,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:09:11,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:09:11,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:09:11,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:09:11,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:09:11,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:09:11,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:09:11,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:09:11,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:09:11,901 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 23:09:11,937 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:09:11,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:09:11,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:09:11,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:09:11,939 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:09:11,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:09:11,939 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:09:11,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:09:11,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:09:11,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:09:11,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:09:11,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:09:11,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:09:11,944 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:09:11,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:09:11,944 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:09:11,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:09:11,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:09:11,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:09:11,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:09:11,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:09:11,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:11,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:09:11,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:09:11,947 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:09:11,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:09:11,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:09:11,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:09:11,947 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 23:09:12,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:09:12,319 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:09:12,322 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:09:12,324 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:09:12,324 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:09:12,325 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product18.cil.c [2019-10-13 23:09:12,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cedea50b/f9370df5b93945678d6aa30082ca444c/FLAG5533574ee [2019-10-13 23:09:13,045 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:09:13,046 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product18.cil.c [2019-10-13 23:09:13,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cedea50b/f9370df5b93945678d6aa30082ca444c/FLAG5533574ee [2019-10-13 23:09:13,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cedea50b/f9370df5b93945678d6aa30082ca444c [2019-10-13 23:09:13,214 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:09:13,216 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:09:13,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:13,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:09:13,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:09:13,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:13" (1/1) ... [2019-10-13 23:09:13,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d9af163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:13, skipping insertion in model container [2019-10-13 23:09:13,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:13" (1/1) ... [2019-10-13 23:09:13,238 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:09:13,318 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:09:14,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:14,196 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:09:14,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:14,469 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:09:14,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:14 WrapperNode [2019-10-13 23:09:14,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:14,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:09:14,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:09:14,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:09:14,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:14" (1/1) ... [2019-10-13 23:09:14,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:14" (1/1) ... [2019-10-13 23:09:14,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:14" (1/1) ... [2019-10-13 23:09:14,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:14" (1/1) ... [2019-10-13 23:09:14,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:14" (1/1) ... [2019-10-13 23:09:14,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:14" (1/1) ... [2019-10-13 23:09:14,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:14" (1/1) ... [2019-10-13 23:09:14,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:09:14,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:09:14,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:09:14,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:09:14,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:14" (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 23:09:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:09:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:09:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:09:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:09:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:09:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:09:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:09:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:09:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:09:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:09:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:09:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:09:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:09:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:09:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:09:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:09:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:09:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:09:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:09:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:09:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:09:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:09:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:09:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:09:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:09:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:09:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:09:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:09:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:09:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:09:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:09:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:09:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:09:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:09:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:09:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:09:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:09:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:09:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:09:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:09:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:09:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:09:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:09:14,776 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:09:14,776 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:09:14,776 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:09:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:09:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:09:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:09:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:09:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:09:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:09:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:09:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:09:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:09:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:09:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:09:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:09:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:09:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:09:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:09:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-13 23:09:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:09:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:09:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:09:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:09:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:09:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:09:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:09:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:09:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:09:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:09:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:09:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:09:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:09:14,788 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:09:14,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:09:14,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:09:14,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:09:14,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:09:14,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:09:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:09:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:09:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:09:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:09:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:09:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:09:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:09:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:09:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:09:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:09:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:09:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:09:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:09:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:09:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:09:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:09:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 23:09:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:09:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:09:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:09:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:09:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:09:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:09:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:09:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:09:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:09:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:09:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:09:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:09:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:09:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:09:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:09:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:09:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:09:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:09:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:09:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:09:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:09:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:09:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:09:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:09:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:09:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:09:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:09:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:09:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:09:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:09:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:09:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:09:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:09:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:09:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:09:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:09:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:09:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:09:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:09:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:09:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:09:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:09:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:09:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:09:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:09:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:09:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:09:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:09:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:09:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:09:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:09:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:09:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:09:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:09:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:09:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:09:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:09:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:09:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:09:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:09:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:09:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:09:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:09:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:09:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:09:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:09:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:09:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:09:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:09:14,823 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:09:14,823 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:09:14,823 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:09:14,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:14,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:09:14,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:09:14,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:09:14,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:09:14,824 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:14,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:09:14,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:14,825 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:14,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:09:14,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:09:14,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:09:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:09:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:09:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:09:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:09:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:09:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:09:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:09:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:09:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:09:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:09:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:09:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:09:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:09:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:09:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:09:14,829 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:09:14,829 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:09:14,829 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:09:14,829 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:09:14,829 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:09:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:09:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:09:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:09:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-13 23:09:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:09:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:09:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:09:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:09:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:09:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:09:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:09:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:09:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:09:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:09:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:09:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:09:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:09:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:09:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:09:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 23:09:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:09:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:09:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:09:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:09:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:09:19,745 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:09:19,745 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:09:19,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:19 BoogieIcfgContainer [2019-10-13 23:09:19,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:09:19,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:09:19,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:09:19,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:09:19,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:09:13" (1/3) ... [2019-10-13 23:09:19,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4739a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:19, skipping insertion in model container [2019-10-13 23:09:19,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:14" (2/3) ... [2019-10-13 23:09:19,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4739a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:19, skipping insertion in model container [2019-10-13 23:09:19,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:19" (3/3) ... [2019-10-13 23:09:19,758 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product18.cil.c [2019-10-13 23:09:19,768 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:09:19,782 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:09:19,795 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:09:19,844 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:09:19,844 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:09:19,844 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:09:19,844 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:09:19,844 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:09:19,845 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:09:19,845 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:09:19,845 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:09:19,873 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states. [2019-10-13 23:09:19,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-13 23:09:19,890 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:19,892 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:09:19,894 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:19,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:19,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1083958016, now seen corresponding path program 1 times [2019-10-13 23:09:19,908 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:19,908 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680502016] [2019-10-13 23:09:19,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:19,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:19,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:20,508 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:20,509 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680502016] [2019-10-13 23:09:20,509 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:20,510 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:09:20,510 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703478931] [2019-10-13 23:09:20,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:09:20,516 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:20,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:09:20,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:09:20,533 INFO L87 Difference]: Start difference. First operand 361 states. Second operand 2 states. [2019-10-13 23:09:20,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:20,605 INFO L93 Difference]: Finished difference Result 498 states and 589 transitions. [2019-10-13 23:09:20,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:09:20,607 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 134 [2019-10-13 23:09:20,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:20,625 INFO L225 Difference]: With dead ends: 498 [2019-10-13 23:09:20,626 INFO L226 Difference]: Without dead ends: 324 [2019-10-13 23:09:20,631 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 23:09:20,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-10-13 23:09:20,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2019-10-13 23:09:20,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2019-10-13 23:09:20,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 381 transitions. [2019-10-13 23:09:20,712 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 381 transitions. Word has length 134 [2019-10-13 23:09:20,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:20,715 INFO L462 AbstractCegarLoop]: Abstraction has 324 states and 381 transitions. [2019-10-13 23:09:20,715 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:09:20,715 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 381 transitions. [2019-10-13 23:09:20,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-13 23:09:20,720 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:20,721 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:20,721 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:20,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:20,722 INFO L82 PathProgramCache]: Analyzing trace with hash 906778733, now seen corresponding path program 1 times [2019-10-13 23:09:20,722 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:20,722 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10764945] [2019-10-13 23:09:20,722 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:20,722 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:20,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:21,105 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:21,105 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10764945] [2019-10-13 23:09:21,106 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:21,106 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:21,106 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24444294] [2019-10-13 23:09:21,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:21,109 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:21,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:21,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:21,109 INFO L87 Difference]: Start difference. First operand 324 states and 381 transitions. Second operand 3 states. [2019-10-13 23:09:21,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:21,182 INFO L93 Difference]: Finished difference Result 483 states and 557 transitions. [2019-10-13 23:09:21,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:21,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-10-13 23:09:21,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:21,196 INFO L225 Difference]: With dead ends: 483 [2019-10-13 23:09:21,196 INFO L226 Difference]: Without dead ends: 326 [2019-10-13 23:09:21,199 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 23:09:21,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-10-13 23:09:21,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2019-10-13 23:09:21,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-10-13 23:09:21,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 383 transitions. [2019-10-13 23:09:21,256 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 383 transitions. Word has length 135 [2019-10-13 23:09:21,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:21,257 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 383 transitions. [2019-10-13 23:09:21,257 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:21,257 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 383 transitions. [2019-10-13 23:09:21,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-13 23:09:21,261 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:21,261 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 23:09:21,262 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:21,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:21,262 INFO L82 PathProgramCache]: Analyzing trace with hash 2025946945, now seen corresponding path program 1 times [2019-10-13 23:09:21,262 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:21,263 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194594058] [2019-10-13 23:09:21,263 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:21,263 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:21,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:21,479 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:21,480 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194594058] [2019-10-13 23:09:21,480 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:21,481 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:21,481 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969365464] [2019-10-13 23:09:21,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:21,486 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:21,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:21,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:21,488 INFO L87 Difference]: Start difference. First operand 326 states and 383 transitions. Second operand 3 states. [2019-10-13 23:09:21,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:21,569 INFO L93 Difference]: Finished difference Result 634 states and 773 transitions. [2019-10-13 23:09:21,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:21,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-13 23:09:21,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:21,578 INFO L225 Difference]: With dead ends: 634 [2019-10-13 23:09:21,579 INFO L226 Difference]: Without dead ends: 366 [2019-10-13 23:09:21,587 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 23:09:21,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-10-13 23:09:21,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 365. [2019-10-13 23:09:21,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-10-13 23:09:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 451 transitions. [2019-10-13 23:09:21,634 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 451 transitions. Word has length 144 [2019-10-13 23:09:21,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:21,635 INFO L462 AbstractCegarLoop]: Abstraction has 365 states and 451 transitions. [2019-10-13 23:09:21,635 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:21,635 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 451 transitions. [2019-10-13 23:09:21,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-13 23:09:21,639 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:21,640 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, 1] [2019-10-13 23:09:21,640 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:21,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:21,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1474183208, now seen corresponding path program 1 times [2019-10-13 23:09:21,641 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:21,641 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005350498] [2019-10-13 23:09:21,641 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:21,641 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:21,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:21,829 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:21,830 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005350498] [2019-10-13 23:09:21,830 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:21,831 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:21,831 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290102626] [2019-10-13 23:09:21,832 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:21,832 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:21,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:21,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:21,833 INFO L87 Difference]: Start difference. First operand 365 states and 451 transitions. Second operand 3 states. [2019-10-13 23:09:21,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:21,867 INFO L93 Difference]: Finished difference Result 748 states and 972 transitions. [2019-10-13 23:09:21,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:21,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2019-10-13 23:09:21,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:21,872 INFO L225 Difference]: With dead ends: 748 [2019-10-13 23:09:21,873 INFO L226 Difference]: Without dead ends: 441 [2019-10-13 23:09:21,875 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 23:09:21,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2019-10-13 23:09:21,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 440. [2019-10-13 23:09:21,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2019-10-13 23:09:21,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 581 transitions. [2019-10-13 23:09:21,906 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 581 transitions. Word has length 145 [2019-10-13 23:09:21,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:21,906 INFO L462 AbstractCegarLoop]: Abstraction has 440 states and 581 transitions. [2019-10-13 23:09:21,906 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:21,907 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 581 transitions. [2019-10-13 23:09:21,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 23:09:21,910 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:21,911 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, 1, 1, 1, 1] [2019-10-13 23:09:21,911 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:21,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:21,912 INFO L82 PathProgramCache]: Analyzing trace with hash 463865911, now seen corresponding path program 1 times [2019-10-13 23:09:21,912 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:21,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761991767] [2019-10-13 23:09:21,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:21,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:21,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:22,286 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-10-13 23:09:22,633 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 23:09:22,633 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761991767] [2019-10-13 23:09:22,634 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:22,634 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-13 23:09:22,634 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033279011] [2019-10-13 23:09:22,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-13 23:09:22,636 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:22,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-13 23:09:22,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2019-10-13 23:09:22,637 INFO L87 Difference]: Start difference. First operand 440 states and 581 transitions. Second operand 23 states. [2019-10-13 23:09:32,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:32,645 INFO L93 Difference]: Finished difference Result 953 states and 1157 transitions. [2019-10-13 23:09:32,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-10-13 23:09:32,646 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 148 [2019-10-13 23:09:32,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:32,656 INFO L225 Difference]: With dead ends: 953 [2019-10-13 23:09:32,656 INFO L226 Difference]: Without dead ends: 735 [2019-10-13 23:09:32,660 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=351, Invalid=2405, Unknown=0, NotChecked=0, Total=2756 [2019-10-13 23:09:32,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2019-10-13 23:09:32,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 725. [2019-10-13 23:09:32,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2019-10-13 23:09:32,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 891 transitions. [2019-10-13 23:09:32,729 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 891 transitions. Word has length 148 [2019-10-13 23:09:32,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:32,732 INFO L462 AbstractCegarLoop]: Abstraction has 725 states and 891 transitions. [2019-10-13 23:09:32,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-13 23:09:32,732 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 891 transitions. [2019-10-13 23:09:32,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 23:09:32,737 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:32,737 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:32,738 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:32,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:32,738 INFO L82 PathProgramCache]: Analyzing trace with hash -920810668, now seen corresponding path program 1 times [2019-10-13 23:09:32,738 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:32,739 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197495600] [2019-10-13 23:09:32,739 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:32,739 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:32,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:33,033 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197495600] [2019-10-13 23:09:33,033 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071243259] [2019-10-13 23:09:33,034 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 23:09:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:33,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 2578 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:09:33,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:09:33,720 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:33,720 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:09:33,908 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:33,909 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [745297393] [2019-10-13 23:09:33,947 INFO L162 IcfgInterpreter]: Started Sifa with 143 locations of interest [2019-10-13 23:09:33,947 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:09:33,958 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:09:33,966 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:09:33,967 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs