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_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:09:14,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:09:14,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:09:14,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:09:14,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:09:14,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:09:14,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:09:14,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:09:14,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:09:14,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:09:14,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:09:14,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:09:14,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:09:14,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:09:14,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:09:14,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:09:14,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:09:14,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:09:14,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:09:14,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:09:14,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:09:14,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:09:14,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:09:14,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:09:14,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:09:14,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:09:14,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:09:14,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:09:14,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:09:14,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:09:14,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:09:14,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:09:14,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:09:14,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:09:14,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:09:14,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:09:14,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:09:14,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:09:14,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:09:14,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:09:14,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:09:14,300 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 23:09:14,324 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:09:14,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:09:14,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:09:14,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:09:14,327 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:09:14,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:09:14,327 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:09:14,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:09:14,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:09:14,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:09:14,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:09:14,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:09:14,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:09:14,330 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:09:14,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:09:14,330 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:09:14,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:09:14,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:09:14,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:09:14,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:09:14,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:09:14,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:14,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:09:14,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:09:14,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:09:14,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:09:14,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:09:14,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:09:14,333 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 23:09:14,638 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:09:14,652 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:09:14,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:09:14,658 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:09:14,658 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:09:14,659 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product23.cil.c [2019-10-13 23:09:14,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/679d5d189/3d603828b86745f7986f44a0f2cf11a9/FLAGbc5bb422c [2019-10-13 23:09:15,426 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:09:15,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product23.cil.c [2019-10-13 23:09:15,454 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/679d5d189/3d603828b86745f7986f44a0f2cf11a9/FLAGbc5bb422c [2019-10-13 23:09:15,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/679d5d189/3d603828b86745f7986f44a0f2cf11a9 [2019-10-13 23:09:15,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:09:15,585 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:09:15,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:15,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:09:15,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:09:15,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:15" (1/1) ... [2019-10-13 23:09:15,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7e0ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:15, skipping insertion in model container [2019-10-13 23:09:15,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:15" (1/1) ... [2019-10-13 23:09:15,604 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:09:15,685 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:09:16,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:16,506 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:09:16,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:16,849 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:09:16,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:16 WrapperNode [2019-10-13 23:09:16,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:16,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:09:16,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:09:16,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:09:16,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:16" (1/1) ... [2019-10-13 23:09:16,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:16" (1/1) ... [2019-10-13 23:09:16,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:16" (1/1) ... [2019-10-13 23:09:16,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:16" (1/1) ... [2019-10-13 23:09:16,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:16" (1/1) ... [2019-10-13 23:09:17,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:16" (1/1) ... [2019-10-13 23:09:17,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:16" (1/1) ... [2019-10-13 23:09:17,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:09:17,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:09:17,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:09:17,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:09:17,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:16" (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 23:09:17,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:09:17,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:09:17,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:17,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:09:17,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:09:17,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:17,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:09:17,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:17,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:09:17,175 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:09:17,176 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:09:17,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:09:17,176 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:09:17,176 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:09:17,177 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:09:17,177 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:09:17,177 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:09:17,177 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:09:17,178 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:09:17,178 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:09:17,178 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:09:17,179 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:09:17,180 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:09:17,180 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:09:17,180 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:09:17,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:17,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:17,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:17,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:09:17,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:09:17,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:09:17,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:09:17,182 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:09:17,182 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:09:17,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:09:17,183 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:09:17,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:09:17,183 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:09:17,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:09:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:09:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:09:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:09:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:09:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:09:17,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:09:17,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:09:17,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:09:17,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:09:17,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:09:17,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:09:17,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:09:17,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:09:17,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:09:17,186 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:09:17,186 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:09:17,187 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:09:17,187 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:09:17,187 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:09:17,187 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:09:17,188 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:09:17,188 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:09:17,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:09:17,189 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:09:17,189 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:09:17,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:17,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:17,189 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:09:17,190 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:09:17,190 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:09:17,190 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:09:17,191 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:09:17,191 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-13 23:09:17,191 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:09:17,192 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:09:17,192 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:09:17,192 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:09:17,193 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:09:17,193 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:09:17,194 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:09:17,194 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:09:17,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:09:17,195 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:09:17,195 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:09:17,196 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:09:17,196 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:09:17,196 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:09:17,196 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:09:17,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:09:17,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:09:17,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:09:17,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:09:17,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:09:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:09:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:09:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:09:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:09:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:09:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:09:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:09:17,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:09:17,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:09:17,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:09:17,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:09:17,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:09:17,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:09:17,199 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:09:17,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:09:17,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:09:17,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:09:17,200 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:09:17,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:09:17,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:09:17,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:09:17,201 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:09:17,201 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:09:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:09:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:09:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:09:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:09:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:09:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:09:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:09:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:09:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:09:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:09:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:09:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:09:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:09:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:09:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:09:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:09:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:09:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:09:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:09:17,209 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:09:17,209 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:09:17,209 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:09:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:09:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:09:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:09:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:09:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:09:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:09:17,211 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:09:17,218 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:09:17,218 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:09:17,219 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:09:17,219 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:09:17,219 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:09:17,219 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:09:17,219 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:09:17,219 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:09:17,219 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:09:17,219 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:09:17,220 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:09:17,220 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:09:17,220 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:09:17,220 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:09:17,220 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:09:17,220 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:17,220 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:17,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:09:17,221 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:09:17,221 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:09:17,221 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:09:17,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:17,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:09:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:09:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:09:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:09:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:09:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:09:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:09:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:09:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:09:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:09:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:09:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:09:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:09:17,224 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:09:17,224 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:09:17,224 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:09:17,224 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:09:17,224 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:09:17,224 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:09:17,224 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:09:17,225 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:09:17,225 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:09:17,225 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:09:17,225 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:09:17,225 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:09:17,225 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:09:17,225 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:09:17,226 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:09:17,226 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:09:17,226 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:09:17,226 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:09:17,226 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:09:17,226 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:09:17,226 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:09:17,227 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:09:17,227 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:09:17,227 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:09:17,227 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:09:17,227 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:09:17,229 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:09:17,229 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:09:17,229 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:17,229 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:17,229 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:09:17,230 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:09:17,230 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:09:17,230 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:09:17,230 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:09:17,230 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:09:17,230 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:09:17,230 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:09:17,230 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:09:17,231 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:09:17,231 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:09:17,231 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:09:17,231 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:09:17,231 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:09:17,231 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:09:17,231 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:09:17,231 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:09:17,231 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-13 23:09:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:09:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:09:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:09:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:09:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:09:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:09:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:09:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:09:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:09:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:09:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:09:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:09:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:09:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:09:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:09:22,235 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:09:22,235 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:09:22,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:22 BoogieIcfgContainer [2019-10-13 23:09:22,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:09:22,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:09:22,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:09:22,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:09:22,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:09:15" (1/3) ... [2019-10-13 23:09:22,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8f2932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:22, skipping insertion in model container [2019-10-13 23:09:22,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:16" (2/3) ... [2019-10-13 23:09:22,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8f2932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:22, skipping insertion in model container [2019-10-13 23:09:22,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:22" (3/3) ... [2019-10-13 23:09:22,247 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product23.cil.c [2019-10-13 23:09:22,258 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:09:22,269 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:09:22,281 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:09:22,326 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:09:22,327 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:09:22,327 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:09:22,327 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:09:22,327 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:09:22,327 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:09:22,327 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:09:22,327 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:09:22,373 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states. [2019-10-13 23:09:22,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-13 23:09:22,461 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:22,467 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:22,472 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:22,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:22,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1560692209, now seen corresponding path program 1 times [2019-10-13 23:09:22,490 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:22,491 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769121828] [2019-10-13 23:09:22,491 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:22,491 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:22,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:23,133 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:23,134 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769121828] [2019-10-13 23:09:23,135 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:23,135 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:09:23,136 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274729349] [2019-10-13 23:09:23,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:09:23,145 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:23,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:09:23,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:09:23,159 INFO L87 Difference]: Start difference. First operand 406 states. Second operand 2 states. [2019-10-13 23:09:23,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:23,222 INFO L93 Difference]: Finished difference Result 562 states and 671 transitions. [2019-10-13 23:09:23,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:09:23,223 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 141 [2019-10-13 23:09:23,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:23,244 INFO L225 Difference]: With dead ends: 562 [2019-10-13 23:09:23,244 INFO L226 Difference]: Without dead ends: 363 [2019-10-13 23:09:23,250 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 23:09:23,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2019-10-13 23:09:23,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2019-10-13 23:09:23,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-10-13 23:09:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2019-10-13 23:09:23,355 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 141 [2019-10-13 23:09:23,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:23,358 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2019-10-13 23:09:23,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:09:23,358 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2019-10-13 23:09:23,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-13 23:09:23,369 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:23,369 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:23,370 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:23,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:23,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1624101455, now seen corresponding path program 1 times [2019-10-13 23:09:23,371 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:23,371 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921200803] [2019-10-13 23:09:23,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:23,372 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:23,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:23,697 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:23,697 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921200803] [2019-10-13 23:09:23,697 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:23,698 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:23,698 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527276592] [2019-10-13 23:09:23,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:23,703 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:23,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:23,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:23,704 INFO L87 Difference]: Start difference. First operand 363 states and 428 transitions. Second operand 3 states. [2019-10-13 23:09:23,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:23,788 INFO L93 Difference]: Finished difference Result 547 states and 636 transitions. [2019-10-13 23:09:23,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:23,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-13 23:09:23,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:23,799 INFO L225 Difference]: With dead ends: 547 [2019-10-13 23:09:23,799 INFO L226 Difference]: Without dead ends: 365 [2019-10-13 23:09:23,804 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 23:09:23,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2019-10-13 23:09:23,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2019-10-13 23:09:23,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-10-13 23:09:23,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 430 transitions. [2019-10-13 23:09:23,843 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 430 transitions. Word has length 142 [2019-10-13 23:09:23,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:23,844 INFO L462 AbstractCegarLoop]: Abstraction has 365 states and 430 transitions. [2019-10-13 23:09:23,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:23,844 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 430 transitions. [2019-10-13 23:09:23,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-13 23:09:23,849 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:23,849 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:23,850 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:23,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:23,850 INFO L82 PathProgramCache]: Analyzing trace with hash -302069949, now seen corresponding path program 1 times [2019-10-13 23:09:23,850 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:23,851 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508749964] [2019-10-13 23:09:23,851 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:23,851 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:23,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:24,148 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:24,149 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508749964] [2019-10-13 23:09:24,149 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:24,149 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:24,150 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421666821] [2019-10-13 23:09:24,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:24,153 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:24,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:24,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:24,153 INFO L87 Difference]: Start difference. First operand 365 states and 430 transitions. Second operand 3 states. [2019-10-13 23:09:24,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:24,216 INFO L93 Difference]: Finished difference Result 714 states and 870 transitions. [2019-10-13 23:09:24,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:24,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2019-10-13 23:09:24,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:24,223 INFO L225 Difference]: With dead ends: 714 [2019-10-13 23:09:24,223 INFO L226 Difference]: Without dead ends: 407 [2019-10-13 23:09:24,225 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 23:09:24,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2019-10-13 23:09:24,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 406. [2019-10-13 23:09:24,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2019-10-13 23:09:24,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 501 transitions. [2019-10-13 23:09:24,271 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 501 transitions. Word has length 151 [2019-10-13 23:09:24,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:24,272 INFO L462 AbstractCegarLoop]: Abstraction has 406 states and 501 transitions. [2019-10-13 23:09:24,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:24,272 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 501 transitions. [2019-10-13 23:09:24,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-13 23:09:24,279 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:24,279 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:24,280 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:24,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:24,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1857275432, now seen corresponding path program 1 times [2019-10-13 23:09:24,281 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:24,282 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510057639] [2019-10-13 23:09:24,282 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:24,282 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:24,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:24,429 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:24,430 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510057639] [2019-10-13 23:09:24,430 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:24,430 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:24,431 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143622672] [2019-10-13 23:09:24,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:24,432 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:24,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:24,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:24,432 INFO L87 Difference]: Start difference. First operand 406 states and 501 transitions. Second operand 3 states. [2019-10-13 23:09:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:24,466 INFO L93 Difference]: Finished difference Result 834 states and 1078 transitions. [2019-10-13 23:09:24,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:24,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2019-10-13 23:09:24,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:24,474 INFO L225 Difference]: With dead ends: 834 [2019-10-13 23:09:24,474 INFO L226 Difference]: Without dead ends: 486 [2019-10-13 23:09:24,476 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 23:09:24,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2019-10-13 23:09:24,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 485. [2019-10-13 23:09:24,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2019-10-13 23:09:24,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 637 transitions. [2019-10-13 23:09:24,511 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 637 transitions. Word has length 152 [2019-10-13 23:09:24,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:24,511 INFO L462 AbstractCegarLoop]: Abstraction has 485 states and 637 transitions. [2019-10-13 23:09:24,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:24,512 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 637 transitions. [2019-10-13 23:09:24,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 23:09:24,516 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:24,516 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:24,517 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:24,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:24,517 INFO L82 PathProgramCache]: Analyzing trace with hash -98813823, now seen corresponding path program 1 times [2019-10-13 23:09:24,517 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:24,518 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715456449] [2019-10-13 23:09:24,519 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:24,519 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:24,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:25,228 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:09:25,228 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715456449] [2019-10-13 23:09:25,229 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:25,229 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-13 23:09:25,229 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078697205] [2019-10-13 23:09:25,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-13 23:09:25,230 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:25,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-13 23:09:25,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2019-10-13 23:09:25,231 INFO L87 Difference]: Start difference. First operand 485 states and 637 transitions. Second operand 25 states. [2019-10-13 23:09:37,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:37,831 INFO L93 Difference]: Finished difference Result 1116 states and 1379 transitions. [2019-10-13 23:09:37,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-13 23:09:37,832 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 155 [2019-10-13 23:09:37,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:37,843 INFO L225 Difference]: With dead ends: 1116 [2019-10-13 23:09:37,843 INFO L226 Difference]: Without dead ends: 934 [2019-10-13 23:09:37,845 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=404, Invalid=3018, Unknown=0, NotChecked=0, Total=3422 [2019-10-13 23:09:37,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2019-10-13 23:09:37,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 923. [2019-10-13 23:09:37,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2019-10-13 23:09:37,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1144 transitions. [2019-10-13 23:09:37,908 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1144 transitions. Word has length 155 [2019-10-13 23:09:37,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:37,910 INFO L462 AbstractCegarLoop]: Abstraction has 923 states and 1144 transitions. [2019-10-13 23:09:37,910 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-13 23:09:37,910 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1144 transitions. [2019-10-13 23:09:37,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-13 23:09:37,914 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:37,914 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:37,915 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:37,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:37,915 INFO L82 PathProgramCache]: Analyzing trace with hash -841291605, now seen corresponding path program 1 times [2019-10-13 23:09:37,915 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:37,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345778076] [2019-10-13 23:09:37,916 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:37,916 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:37,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:38,159 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345778076] [2019-10-13 23:09:38,159 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199457549] [2019-10-13 23:09:38,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:09:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:38,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 2839 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:09:38,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:09:38,914 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:38,915 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:09:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:39,143 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1771953508] [2019-10-13 23:09:39,186 INFO L162 IcfgInterpreter]: Started Sifa with 150 locations of interest [2019-10-13 23:09:39,187 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:09:39,194 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:09:39,209 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:09:39,210 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs