java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:09:08,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:09:08,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:09:08,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:09:08,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:09:08,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:09:08,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:09:08,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:09:08,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:09:08,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:09:08,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:09:08,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:09:08,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:09:08,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:09:08,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:09:08,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:09:08,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:09:08,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:09:08,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:09:08,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:09:08,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:09:08,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:09:08,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:09:08,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:09:08,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:09:08,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:09:08,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:09:08,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:09:08,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:09:08,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:09:08,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:09:08,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:09:08,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:09:08,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:09:08,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:09:08,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:09:08,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:09:08,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:09:08,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:09:08,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:09:08,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:09:08,222 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 23:09:08,241 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:09:08,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:09:08,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:09:08,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:09:08,244 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:09:08,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:09:08,245 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:09:08,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:09:08,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:09:08,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:09:08,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:09:08,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:09:08,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:09:08,247 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:09:08,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:09:08,248 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:09:08,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:09:08,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:09:08,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:09:08,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:09:08,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:09:08,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:08,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:09:08,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:09:08,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:09:08,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:09:08,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:09:08,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:09:08,255 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 23:09:08,529 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:09:08,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:09:08,546 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:09:08,547 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:09:08,548 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:09:08,548 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product33.cil.c [2019-10-13 23:09:08,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c64126fab/c91994f931fe4b5ab7a792a6f2f21dfc/FLAG180dbf98e [2019-10-13 23:09:09,256 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:09:09,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product33.cil.c [2019-10-13 23:09:09,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c64126fab/c91994f931fe4b5ab7a792a6f2f21dfc/FLAG180dbf98e [2019-10-13 23:09:09,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c64126fab/c91994f931fe4b5ab7a792a6f2f21dfc [2019-10-13 23:09:09,454 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:09:09,456 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:09:09,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:09,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:09:09,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:09:09,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:09" (1/1) ... [2019-10-13 23:09:09,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21b67f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:09, skipping insertion in model container [2019-10-13 23:09:09,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:09" (1/1) ... [2019-10-13 23:09:09,470 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:09:09,548 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:09:10,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:10,322 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:09:10,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:10,603 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:09:10,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10 WrapperNode [2019-10-13 23:09:10,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:10,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:09:10,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:09:10,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:09:10,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (1/1) ... [2019-10-13 23:09:10,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (1/1) ... [2019-10-13 23:09:10,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (1/1) ... [2019-10-13 23:09:10,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (1/1) ... [2019-10-13 23:09:10,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (1/1) ... [2019-10-13 23:09:10,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (1/1) ... [2019-10-13 23:09:10,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (1/1) ... [2019-10-13 23:09:10,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:09:10,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:09:10,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:09:10,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:09:10,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (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 23:09:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:09:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:09:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:09:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:09:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:10,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:09:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:09:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:09:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:09:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:09:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:09:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:09:10,904 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:09:10,904 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:09:10,904 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:09:10,904 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:09:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:09:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:09:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:09:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:09:10,905 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:09:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:09:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:09:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:09:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:09:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:09:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:09:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:09:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 23:09:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:09:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:09:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:09:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:09:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:09:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:09:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:09:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:09:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:09:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:09:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:09:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:09:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:09:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:09:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:09:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:09:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:09:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:09:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:09:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:09:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:09:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:09:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:09:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:09:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:09:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:09:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:09:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:09:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:09:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:09:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:09:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:09:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:09:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:09:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:09:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:09:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:09:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:09:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:09:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:09:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:09:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:09:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:09:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:09:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:09:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:09:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:09:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:09:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:09:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:09:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:09:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:09:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:09:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:09:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:09:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:09:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:09:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:09:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:09:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:09:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:09:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:09:10,918 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:09:10,918 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:09:10,918 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:09:10,918 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:09:10,918 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:09:10,918 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:09:10,919 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:09:10,919 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:09:10,919 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:09:10,919 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:09:10,919 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:09:10,919 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:09:10,920 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:09:10,920 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:09:10,920 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:09:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:09:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:09:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:09:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:09:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:09:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:09:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:09:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:09:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:09:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:09:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:09:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:09:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:09:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:09:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:09:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:09:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:09:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:09:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:09:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:09:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:09:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:09:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:09:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:09:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:09:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:09:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:09:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:09:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:09:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:09:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:09:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:09:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:09:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:09:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:09:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:09:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:09:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:09:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:09:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:09:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:09:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:09:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:09:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:09:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:09:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:09:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:09:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:09:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:09:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:09:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:09:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:09:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:09:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:09:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:09:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:09:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:09:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:09:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:09:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:09:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:09:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:09:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:09:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:09:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:09:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:09:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:09:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:09:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:09:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:09:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:09:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:09:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 23:09:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:09:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:09:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:09:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:09:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:09:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:09:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:09:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:09:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:09:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:09:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:09:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:09:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:09:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:09:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:09:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:09:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:09:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:09:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:09:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:09:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:09:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:09:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:09:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:09:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:09:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:09:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:09:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:09:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:09:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:09:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:09:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:09:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:09:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:09:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:09:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:09:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:09:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:09:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:09:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:09:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:09:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:09:15,663 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:09:15,664 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:09:15,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:15 BoogieIcfgContainer [2019-10-13 23:09:15,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:09:15,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:09:15,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:09:15,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:09:15,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:09:09" (1/3) ... [2019-10-13 23:09:15,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68114d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:15, skipping insertion in model container [2019-10-13 23:09:15,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:10" (2/3) ... [2019-10-13 23:09:15,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68114d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:15, skipping insertion in model container [2019-10-13 23:09:15,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:15" (3/3) ... [2019-10-13 23:09:15,674 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product33.cil.c [2019-10-13 23:09:15,684 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:09:15,693 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:09:15,705 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:09:15,734 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:09:15,735 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:09:15,735 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:09:15,735 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:09:15,735 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:09:15,735 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:09:15,736 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:09:15,736 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:09:15,767 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states. [2019-10-13 23:09:15,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-13 23:09:15,787 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:15,789 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:15,791 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:15,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:15,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1653884291, now seen corresponding path program 1 times [2019-10-13 23:09:15,807 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:15,808 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372585152] [2019-10-13 23:09:15,808 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:15,809 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:15,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:16,460 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:16,461 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372585152] [2019-10-13 23:09:16,462 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:16,462 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:09:16,462 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402845785] [2019-10-13 23:09:16,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:09:16,468 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:16,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:09:16,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:09:16,482 INFO L87 Difference]: Start difference. First operand 436 states. Second operand 2 states. [2019-10-13 23:09:16,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:16,555 INFO L93 Difference]: Finished difference Result 673 states and 805 transitions. [2019-10-13 23:09:16,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:09:16,556 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 169 [2019-10-13 23:09:16,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:16,578 INFO L225 Difference]: With dead ends: 673 [2019-10-13 23:09:16,578 INFO L226 Difference]: Without dead ends: 415 [2019-10-13 23:09:16,584 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 23:09:16,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2019-10-13 23:09:16,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2019-10-13 23:09:16,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2019-10-13 23:09:16,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 491 transitions. [2019-10-13 23:09:16,672 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 491 transitions. Word has length 169 [2019-10-13 23:09:16,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:16,675 INFO L462 AbstractCegarLoop]: Abstraction has 415 states and 491 transitions. [2019-10-13 23:09:16,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:09:16,675 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 491 transitions. [2019-10-13 23:09:16,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-13 23:09:16,684 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:16,684 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:16,685 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:16,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:16,685 INFO L82 PathProgramCache]: Analyzing trace with hash 431401882, now seen corresponding path program 1 times [2019-10-13 23:09:16,686 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:16,686 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290102626] [2019-10-13 23:09:16,686 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:16,686 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:16,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:17,018 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:17,019 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290102626] [2019-10-13 23:09:17,019 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:17,019 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:17,020 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401659647] [2019-10-13 23:09:17,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:17,024 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:17,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:17,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:17,025 INFO L87 Difference]: Start difference. First operand 415 states and 491 transitions. Second operand 3 states. [2019-10-13 23:09:17,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:17,107 INFO L93 Difference]: Finished difference Result 658 states and 770 transitions. [2019-10-13 23:09:17,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:17,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-10-13 23:09:17,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:17,114 INFO L225 Difference]: With dead ends: 658 [2019-10-13 23:09:17,114 INFO L226 Difference]: Without dead ends: 417 [2019-10-13 23:09:17,116 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 23:09:17,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2019-10-13 23:09:17,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2019-10-13 23:09:17,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2019-10-13 23:09:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 493 transitions. [2019-10-13 23:09:17,156 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 493 transitions. Word has length 170 [2019-10-13 23:09:17,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:17,157 INFO L462 AbstractCegarLoop]: Abstraction has 417 states and 493 transitions. [2019-10-13 23:09:17,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:17,157 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 493 transitions. [2019-10-13 23:09:17,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-13 23:09:17,162 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:17,162 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:17,162 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:17,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:17,163 INFO L82 PathProgramCache]: Analyzing trace with hash 150311337, now seen corresponding path program 1 times [2019-10-13 23:09:17,163 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:17,163 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447851949] [2019-10-13 23:09:17,163 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:17,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:17,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:17,328 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:17,328 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447851949] [2019-10-13 23:09:17,328 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:17,329 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:17,329 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550941466] [2019-10-13 23:09:17,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:17,330 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:17,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:17,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:17,330 INFO L87 Difference]: Start difference. First operand 417 states and 493 transitions. Second operand 3 states. [2019-10-13 23:09:17,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:17,404 INFO L93 Difference]: Finished difference Result 818 states and 996 transitions. [2019-10-13 23:09:17,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:17,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2019-10-13 23:09:17,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:17,419 INFO L225 Difference]: With dead ends: 818 [2019-10-13 23:09:17,420 INFO L226 Difference]: Without dead ends: 459 [2019-10-13 23:09:17,424 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 23:09:17,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2019-10-13 23:09:17,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 458. [2019-10-13 23:09:17,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2019-10-13 23:09:17,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 564 transitions. [2019-10-13 23:09:17,505 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 564 transitions. Word has length 182 [2019-10-13 23:09:17,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:17,506 INFO L462 AbstractCegarLoop]: Abstraction has 458 states and 564 transitions. [2019-10-13 23:09:17,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:17,506 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 564 transitions. [2019-10-13 23:09:17,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-13 23:09:17,521 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:17,522 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:17,522 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:17,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:17,523 INFO L82 PathProgramCache]: Analyzing trace with hash -72650779, now seen corresponding path program 1 times [2019-10-13 23:09:17,523 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:17,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930510146] [2019-10-13 23:09:17,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:17,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:17,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:18,478 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:09:18,478 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930510146] [2019-10-13 23:09:18,479 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:18,479 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-13 23:09:18,479 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254533352] [2019-10-13 23:09:18,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-13 23:09:18,480 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:18,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-13 23:09:18,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:09:18,481 INFO L87 Difference]: Start difference. First operand 458 states and 564 transitions. Second operand 26 states. [2019-10-13 23:09:27,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:27,462 INFO L93 Difference]: Finished difference Result 1004 states and 1230 transitions. [2019-10-13 23:09:27,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-13 23:09:27,462 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 183 [2019-10-13 23:09:27,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:27,469 INFO L225 Difference]: With dead ends: 1004 [2019-10-13 23:09:27,469 INFO L226 Difference]: Without dead ends: 763 [2019-10-13 23:09:27,472 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=1813, Unknown=0, NotChecked=0, Total=1980 [2019-10-13 23:09:27,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2019-10-13 23:09:27,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 734. [2019-10-13 23:09:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2019-10-13 23:09:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 901 transitions. [2019-10-13 23:09:27,517 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 901 transitions. Word has length 183 [2019-10-13 23:09:27,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:27,518 INFO L462 AbstractCegarLoop]: Abstraction has 734 states and 901 transitions. [2019-10-13 23:09:27,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-13 23:09:27,518 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 901 transitions. [2019-10-13 23:09:27,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-13 23:09:27,522 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:27,523 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:27,523 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:27,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:27,524 INFO L82 PathProgramCache]: Analyzing trace with hash 552693849, now seen corresponding path program 1 times [2019-10-13 23:09:27,524 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:27,524 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431982536] [2019-10-13 23:09:27,524 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:27,524 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:27,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:27,842 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:09:27,843 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431982536] [2019-10-13 23:09:27,843 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:27,844 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:09:27,844 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529497696] [2019-10-13 23:09:27,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:09:27,846 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:27,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:09:27,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:09:27,847 INFO L87 Difference]: Start difference. First operand 734 states and 901 transitions. Second operand 10 states. [2019-10-13 23:09:27,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:27,928 INFO L93 Difference]: Finished difference Result 1225 states and 1489 transitions. [2019-10-13 23:09:27,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:09:27,929 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 187 [2019-10-13 23:09:27,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:27,938 INFO L225 Difference]: With dead ends: 1225 [2019-10-13 23:09:27,938 INFO L226 Difference]: Without dead ends: 754 [2019-10-13 23:09:27,940 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:09:27,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2019-10-13 23:09:27,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 738. [2019-10-13 23:09:27,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 738 states. [2019-10-13 23:09:27,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 905 transitions. [2019-10-13 23:09:27,993 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 905 transitions. Word has length 187 [2019-10-13 23:09:27,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:27,996 INFO L462 AbstractCegarLoop]: Abstraction has 738 states and 905 transitions. [2019-10-13 23:09:27,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:09:27,996 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 905 transitions. [2019-10-13 23:09:28,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 23:09:28,001 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:28,001 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:28,002 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:28,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:28,002 INFO L82 PathProgramCache]: Analyzing trace with hash -256854287, now seen corresponding path program 1 times [2019-10-13 23:09:28,003 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:28,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140434770] [2019-10-13 23:09:28,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:28,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:28,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:29,119 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:09:29,120 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140434770] [2019-10-13 23:09:29,120 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:29,120 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2019-10-13 23:09:29,121 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355218384] [2019-10-13 23:09:29,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-10-13 23:09:29,121 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:29,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-10-13 23:09:29,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=969, Unknown=0, NotChecked=0, Total=1056 [2019-10-13 23:09:29,123 INFO L87 Difference]: Start difference. First operand 738 states and 905 transitions. Second operand 33 states. [2019-10-13 23:09:44,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:44,383 INFO L93 Difference]: Finished difference Result 1813 states and 2197 transitions. [2019-10-13 23:09:44,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-13 23:09:44,384 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 189 [2019-10-13 23:09:44,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:44,392 INFO L225 Difference]: With dead ends: 1813 [2019-10-13 23:09:44,392 INFO L226 Difference]: Without dead ends: 1277 [2019-10-13 23:09:44,396 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=315, Invalid=3975, Unknown=0, NotChecked=0, Total=4290 [2019-10-13 23:09:44,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2019-10-13 23:09:44,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1260. [2019-10-13 23:09:44,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1260 states. [2019-10-13 23:09:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1524 transitions. [2019-10-13 23:09:44,459 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1524 transitions. Word has length 189 [2019-10-13 23:09:44,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:44,460 INFO L462 AbstractCegarLoop]: Abstraction has 1260 states and 1524 transitions. [2019-10-13 23:09:44,460 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-10-13 23:09:44,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1524 transitions. [2019-10-13 23:09:44,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-13 23:09:44,464 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:44,465 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:44,465 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:44,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:44,466 INFO L82 PathProgramCache]: Analyzing trace with hash 413493526, now seen corresponding path program 1 times [2019-10-13 23:09:44,466 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:44,466 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272412537] [2019-10-13 23:09:44,466 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:44,466 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:44,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 23:09:45,032 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272412537] [2019-10-13 23:09:45,032 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:45,033 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-13 23:09:45,033 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856835286] [2019-10-13 23:09:45,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-13 23:09:45,034 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:45,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-13 23:09:45,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-13 23:09:45,036 INFO L87 Difference]: Start difference. First operand 1260 states and 1524 transitions. Second operand 25 states.