/usr/bin/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_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:20:43,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:20:43,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:20:43,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:20:43,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:20:43,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:20:43,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:20:43,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:20:43,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:20:43,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:20:43,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:20:43,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:20:43,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:20:43,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:20:43,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:20:43,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:20:43,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:20:43,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:20:43,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:20:43,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:20:43,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:20:43,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:20:43,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:20:43,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:20:43,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:20:43,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:20:43,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:20:43,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:20:43,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:20:43,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:20:43,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:20:43,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:20:43,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:20:43,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:20:43,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:20:43,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:20:43,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:20:43,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:20:43,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:20:43,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:20:43,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:20:43,863 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 [2019-11-07 04:20:43,884 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:20:43,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:20:43,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:20:43,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:20:43,887 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:20:43,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:20:43,888 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:20:43,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:20:43,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:20:43,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:20:43,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:20:43,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:20:43,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:20:43,890 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:20:43,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:20:43,891 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:20:43,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:20:43,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:20:43,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:20:43,892 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:20:43,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:20:43,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:20:43,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:20:43,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:20:43,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:20:43,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:20:43,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:20:43,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:20:43,894 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 [2019-11-07 04:20:44,198 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:20:44,211 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:20:44,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:20:44,216 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:20:44,217 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:20:44,218 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product30.cil.c [2019-11-07 04:20:44,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e03f3784/cb0d380f4ca940d7a09895a8b0513e72/FLAG3f71bdadc [2019-11-07 04:20:44,882 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:20:44,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product30.cil.c [2019-11-07 04:20:44,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e03f3784/cb0d380f4ca940d7a09895a8b0513e72/FLAG3f71bdadc [2019-11-07 04:20:45,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e03f3784/cb0d380f4ca940d7a09895a8b0513e72 [2019-11-07 04:20:45,157 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:20:45,159 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:20:45,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:20:45,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:20:45,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:20:45,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:20:45" (1/1) ... [2019-11-07 04:20:45,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a032d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:45, skipping insertion in model container [2019-11-07 04:20:45,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:20:45" (1/1) ... [2019-11-07 04:20:45,195 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:20:45,363 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:20:46,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:20:46,230 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:20:46,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:20:46,499 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:20:46,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:46 WrapperNode [2019-11-07 04:20:46,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:20:46,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:20:46,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:20:46,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:20:46,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:46" (1/1) ... [2019-11-07 04:20:46,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:46" (1/1) ... [2019-11-07 04:20:46,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:46" (1/1) ... [2019-11-07 04:20:46,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:46" (1/1) ... [2019-11-07 04:20:46,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:46" (1/1) ... [2019-11-07 04:20:46,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:46" (1/1) ... [2019-11-07 04:20:46,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:46" (1/1) ... [2019-11-07 04:20:46,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:20:46,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:20:46,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:20:46,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:20:46,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:46" (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 [2019-11-07 04:20:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:20:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:20:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:20:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:20:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-11-07 04:20:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 04:20:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:20:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:20:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:20:46,798 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:20:46,798 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:20:46,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:20:46,798 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:20:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:20:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:20:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:20:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:20:46,800 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:20:46,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:20:46,801 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:20:46,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:20:46,801 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:20:46,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:20:46,802 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:20:46,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:20:46,802 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:20:46,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:20:46,803 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:20:46,803 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:20:46,803 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:20:46,803 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:20:46,803 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:20:46,804 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:20:46,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:20:46,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:20:46,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:20:46,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:20:46,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:20:46,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:20:46,805 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:20:46,805 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:20:46,805 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:20:46,805 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:20:46,805 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:20:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:20:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:20:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:20:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:20:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:20:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:20:46,807 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:20:46,807 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:20:46,807 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:20:46,807 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:20:46,807 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:20:46,807 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:20:46,808 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:20:46,808 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:20:46,808 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:20:46,808 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:20:46,808 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:20:46,808 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:20:46,809 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:20:46,809 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:20:46,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:20:46,809 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:20:46,809 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:20:46,809 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:20:46,810 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:20:46,810 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:20:46,810 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:20:46,810 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 04:20:46,810 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:20:46,810 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:20:46,810 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:20:46,811 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:20:46,811 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:20:46,811 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:20:46,811 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:20:46,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:20:46,811 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:20:46,812 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:20:46,812 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:20:46,812 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:20:46,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 04:20:46,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 04:20:46,812 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:20:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:20:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:20:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:20:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:20:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:20:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:20:46,813 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:20:46,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:20:46,814 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:20:46,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:20:46,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:20:46,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:20:46,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:20:46,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:20:46,815 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:20:46,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:20:46,815 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:20:46,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:20:46,815 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:20:46,815 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:20:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:20:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:20:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:20:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:20:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:20:46,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:20:46,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:20:46,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:20:46,817 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:20:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:20:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:20:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:20:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:20:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:20:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:20:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:20:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:20:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:20:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:20:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:20:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:20:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:20:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:20:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:20:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:20:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:20:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:20:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:20:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-11-07 04:20:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 04:20:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:20:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:20:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:20:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:20:46,821 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:20:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:20:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:20:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:20:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:20:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:20:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:20:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:20:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:20:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:20:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:20:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:20:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:20:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:20:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:20:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:20:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:20:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:20:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:20:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:20:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:20:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:20:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:20:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:20:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:20:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:20:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:20:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:20:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:20:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:20:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:20:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:20:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:20:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:20:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:20:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:20:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:20:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:20:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:20:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:20:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:20:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:20:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:20:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:20:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:20:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:20:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:20:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:20:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:20:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:20:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:20:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:20:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:20:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:20:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:20:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:20:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:20:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:20:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:20:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:20:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:20:46,831 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:20:46,831 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:20:46,831 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:20:46,831 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:20:46,831 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:20:46,831 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:20:46,831 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:20:46,832 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:20:46,832 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:20:46,832 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:20:46,832 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:20:46,832 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:20:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:20:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:20:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:20:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:20:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:20:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:20:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 04:20:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:20:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:20:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:20:46,834 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:20:46,835 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 04:20:46,835 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 04:20:46,835 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:20:46,835 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:20:46,835 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:20:46,835 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:20:46,836 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:20:46,836 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:20:46,836 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:20:46,836 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:20:46,836 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:20:46,836 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:20:46,836 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:20:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:20:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:20:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:20:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:20:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:20:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:20:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:20:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:20:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:20:51,517 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:20:51,517 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:20:51,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:20:51 BoogieIcfgContainer [2019-11-07 04:20:51,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:20:51,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:20:51,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:20:51,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:20:51,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:20:45" (1/3) ... [2019-11-07 04:20:51,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78066b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:20:51, skipping insertion in model container [2019-11-07 04:20:51,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:46" (2/3) ... [2019-11-07 04:20:51,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78066b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:20:51, skipping insertion in model container [2019-11-07 04:20:51,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:20:51" (3/3) ... [2019-11-07 04:20:51,527 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product30.cil.c [2019-11-07 04:20:51,538 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:20:51,547 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:20:51,560 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:20:51,594 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:20:51,595 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:20:51,595 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:20:51,595 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:20:51,595 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:20:51,595 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:20:51,595 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:20:51,595 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:20:51,625 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2019-11-07 04:20:51,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-11-07 04:20:51,644 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:51,646 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:51,648 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:51,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:51,656 INFO L82 PathProgramCache]: Analyzing trace with hash -2147122681, now seen corresponding path program 1 times [2019-11-07 04:20:51,666 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:51,667 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373429420] [2019-11-07 04:20:51,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:52,403 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:20:52,404 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373429420] [2019-11-07 04:20:52,405 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:52,405 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:20:52,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666594049] [2019-11-07 04:20:52,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:20:52,415 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:52,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:20:52,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:20:52,428 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 2 states. [2019-11-07 04:20:52,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:52,492 INFO L93 Difference]: Finished difference Result 586 states and 703 transitions. [2019-11-07 04:20:52,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:20:52,494 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-11-07 04:20:52,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:52,514 INFO L225 Difference]: With dead ends: 586 [2019-11-07 04:20:52,514 INFO L226 Difference]: Without dead ends: 368 [2019-11-07 04:20:52,520 INFO L630 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 [2019-11-07 04:20:52,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2019-11-07 04:20:52,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2019-11-07 04:20:52,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2019-11-07 04:20:52,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 437 transitions. [2019-11-07 04:20:52,719 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 437 transitions. Word has length 152 [2019-11-07 04:20:52,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:52,721 INFO L462 AbstractCegarLoop]: Abstraction has 368 states and 437 transitions. [2019-11-07 04:20:52,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:20:52,722 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 437 transitions. [2019-11-07 04:20:52,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-11-07 04:20:52,728 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:52,728 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:52,728 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:52,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:52,729 INFO L82 PathProgramCache]: Analyzing trace with hash -35923221, now seen corresponding path program 1 times [2019-11-07 04:20:52,729 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:52,729 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856037430] [2019-11-07 04:20:52,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:52,960 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:20:52,960 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856037430] [2019-11-07 04:20:52,961 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:52,961 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:20:52,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728023834] [2019-11-07 04:20:52,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:20:52,963 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:52,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:20:52,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:20:52,964 INFO L87 Difference]: Start difference. First operand 368 states and 437 transitions. Second operand 3 states. [2019-11-07 04:20:53,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:53,022 INFO L93 Difference]: Finished difference Result 571 states and 669 transitions. [2019-11-07 04:20:53,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:20:53,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-11-07 04:20:53,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:53,035 INFO L225 Difference]: With dead ends: 571 [2019-11-07 04:20:53,035 INFO L226 Difference]: Without dead ends: 370 [2019-11-07 04:20:53,042 INFO L630 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 [2019-11-07 04:20:53,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2019-11-07 04:20:53,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2019-11-07 04:20:53,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2019-11-07 04:20:53,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 439 transitions. [2019-11-07 04:20:53,090 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 439 transitions. Word has length 153 [2019-11-07 04:20:53,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:53,090 INFO L462 AbstractCegarLoop]: Abstraction has 370 states and 439 transitions. [2019-11-07 04:20:53,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:20:53,091 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 439 transitions. [2019-11-07 04:20:53,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-11-07 04:20:53,098 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:53,099 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:53,099 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:53,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:53,101 INFO L82 PathProgramCache]: Analyzing trace with hash -955945875, now seen corresponding path program 1 times [2019-11-07 04:20:53,101 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:53,101 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133066199] [2019-11-07 04:20:53,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:53,340 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:20:53,341 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133066199] [2019-11-07 04:20:53,341 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:53,341 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:20:53,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675321524] [2019-11-07 04:20:53,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:20:53,344 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:53,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:20:53,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:20:53,345 INFO L87 Difference]: Start difference. First operand 370 states and 439 transitions. Second operand 3 states. [2019-11-07 04:20:53,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:53,395 INFO L93 Difference]: Finished difference Result 722 states and 885 transitions. [2019-11-07 04:20:53,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:20:53,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-11-07 04:20:53,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:53,401 INFO L225 Difference]: With dead ends: 722 [2019-11-07 04:20:53,401 INFO L226 Difference]: Without dead ends: 410 [2019-11-07 04:20:53,403 INFO L630 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 [2019-11-07 04:20:53,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2019-11-07 04:20:53,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 409. [2019-11-07 04:20:53,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2019-11-07 04:20:53,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 507 transitions. [2019-11-07 04:20:53,431 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 507 transitions. Word has length 162 [2019-11-07 04:20:53,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:53,432 INFO L462 AbstractCegarLoop]: Abstraction has 409 states and 507 transitions. [2019-11-07 04:20:53,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:20:53,432 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 507 transitions. [2019-11-07 04:20:53,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-11-07 04:20:53,436 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:53,437 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:53,437 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:53,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:53,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1331504704, now seen corresponding path program 1 times [2019-11-07 04:20:53,438 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:53,438 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888280616] [2019-11-07 04:20:53,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:53,784 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:20:53,784 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888280616] [2019-11-07 04:20:53,785 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:53,785 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:20:53,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681106616] [2019-11-07 04:20:53,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:20:53,791 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:53,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:20:53,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:20:53,799 INFO L87 Difference]: Start difference. First operand 409 states and 507 transitions. Second operand 3 states. [2019-11-07 04:20:53,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:53,845 INFO L93 Difference]: Finished difference Result 836 states and 1084 transitions. [2019-11-07 04:20:53,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:20:53,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2019-11-07 04:20:53,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:53,855 INFO L225 Difference]: With dead ends: 836 [2019-11-07 04:20:53,855 INFO L226 Difference]: Without dead ends: 485 [2019-11-07 04:20:53,857 INFO L630 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 [2019-11-07 04:20:53,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-11-07 04:20:53,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 484. [2019-11-07 04:20:53,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2019-11-07 04:20:53,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 637 transitions. [2019-11-07 04:20:53,903 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 637 transitions. Word has length 163 [2019-11-07 04:20:53,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:53,904 INFO L462 AbstractCegarLoop]: Abstraction has 484 states and 637 transitions. [2019-11-07 04:20:53,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:20:53,904 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 637 transitions. [2019-11-07 04:20:53,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-11-07 04:20:53,908 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:53,908 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:53,908 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:53,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:53,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1253123207, now seen corresponding path program 1 times [2019-11-07 04:20:53,909 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:53,910 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653558757] [2019-11-07 04:20:53,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-07 04:20:54,715 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653558757] [2019-11-07 04:20:54,716 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:54,716 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-11-07 04:20:54,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997459417] [2019-11-07 04:20:54,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-07 04:20:54,717 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:54,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-07 04:20:54,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2019-11-07 04:20:54,719 INFO L87 Difference]: Start difference. First operand 484 states and 637 transitions. Second operand 25 states. [2019-11-07 04:21:07,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:21:07,850 INFO L93 Difference]: Finished difference Result 1162 states and 1421 transitions. [2019-11-07 04:21:07,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-11-07 04:21:07,850 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 166 [2019-11-07 04:21:07,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:21:07,856 INFO L225 Difference]: With dead ends: 1162 [2019-11-07 04:21:07,856 INFO L226 Difference]: Without dead ends: 886 [2019-11-07 04:21:07,859 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=381, Invalid=2811, Unknown=0, NotChecked=0, Total=3192 [2019-11-07 04:21:07,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2019-11-07 04:21:07,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 876. [2019-11-07 04:21:07,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-11-07 04:21:07,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1078 transitions. [2019-11-07 04:21:07,934 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1078 transitions. Word has length 166 [2019-11-07 04:21:07,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:21:07,935 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 1078 transitions. [2019-11-07 04:21:07,935 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-07 04:21:07,935 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1078 transitions. [2019-11-07 04:21:07,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-11-07 04:21:07,939 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:21:07,939 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:21:07,940 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:21:07,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:21:07,940 INFO L82 PathProgramCache]: Analyzing trace with hash 720504456, now seen corresponding path program 1 times [2019-11-07 04:21:07,941 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:21:07,941 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118219814] [2019-11-07 04:21:07,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:21:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:21:09,228 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-07 04:21:09,229 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118219814] [2019-11-07 04:21:09,229 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75154909] [2019-11-07 04:21:09,229 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 [2019-11-07 04:21:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:21:09,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 2887 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:21:09,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:21:10,047 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:21:10,047 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:21:10,330 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:21:10,331 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1526331504] [2019-11-07 04:21:10,362 INFO L159 IcfgInterpreter]: Started Sifa with 155 locations of interest [2019-11-07 04:21:10,363 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:21:10,369 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:21:10,375 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:21:10,375 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs