java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:09:49,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:09:49,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:09:49,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:09:49,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:09:49,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:09:49,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:09:49,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:09:49,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:09:49,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:09:49,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:09:49,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:09:49,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:09:49,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:09:49,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:09:49,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:09:49,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:09:49,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:09:49,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:09:49,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:09:49,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:09:49,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:09:49,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:09:49,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:09:49,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:09:49,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:09:49,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:09:49,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:09:49,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:09:49,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:09:49,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:09:49,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:09:49,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:09:49,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:09:49,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:09:49,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:09:49,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:09:49,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:09:49,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:09:49,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:09:49,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:09:49,424 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 23:09:49,442 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:09:49,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:09:49,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:09:49,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:09:49,444 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:09:49,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:09:49,445 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:09:49,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:09:49,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:09:49,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:09:49,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:09:49,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:09:49,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:09:49,446 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:09:49,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:09:49,447 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:09:49,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:09:49,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:09:49,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:09:49,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:09:49,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:09:49,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:49,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:09:49,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:09:49,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:09:49,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:09:49,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:09:49,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:09:49,449 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 23:09:49,772 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:09:49,790 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:09:49,793 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:09:49,794 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:09:49,794 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:09:49,795 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product30.cil.c [2019-10-13 23:09:49,854 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b35d97b/13a4e5ac612f431cbc3dd4a8482bbf6f/FLAG2de3ea7ee [2019-10-13 23:09:50,508 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:09:50,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product30.cil.c [2019-10-13 23:09:50,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b35d97b/13a4e5ac612f431cbc3dd4a8482bbf6f/FLAG2de3ea7ee [2019-10-13 23:09:50,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b35d97b/13a4e5ac612f431cbc3dd4a8482bbf6f [2019-10-13 23:09:50,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:09:50,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:09:50,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:50,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:09:50,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:09:50,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:50,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56400103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50, skipping insertion in model container [2019-10-13 23:09:50,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:50,702 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:09:50,787 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:09:51,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:51,574 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:09:51,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:51,820 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:09:51,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:51 WrapperNode [2019-10-13 23:09:51,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:51,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:09:51,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:09:51,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:09:51,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:51" (1/1) ... [2019-10-13 23:09:51,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:51" (1/1) ... [2019-10-13 23:09:51,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:51" (1/1) ... [2019-10-13 23:09:51,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:51" (1/1) ... [2019-10-13 23:09:51,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:51" (1/1) ... [2019-10-13 23:09:52,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:51" (1/1) ... [2019-10-13 23:09:52,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:51" (1/1) ... [2019-10-13 23:09:52,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:09:52,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:09:52,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:09:52,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:09:52,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:51" (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 23:09:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:09:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:09:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:09:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 23:09:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:09:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:09:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:09:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:09:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:09:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:09:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:09:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:09:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:09:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:09:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:09:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:09:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:09:52,128 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:09:52,128 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:09:52,128 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:09:52,129 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:09:52,129 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:09:52,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:09:52,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:09:52,130 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:09:52,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:09:52,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:09:52,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:09:52,131 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:09:52,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:09:52,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:09:52,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:09:52,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:52,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:52,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:52,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:09:52,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:09:52,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:09:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:09:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:09:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:09:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:52,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:09:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:09:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:09:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:09:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:09:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:09:52,134 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:09:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:09:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:09:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:09:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:09:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:09:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:09:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:09:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:09:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:09:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:09:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:09:52,136 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:09:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:09:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:09:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:09:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:09:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:09:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:09:52,138 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:09:52,138 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:09:52,138 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:09:52,138 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:09:52,138 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:09:52,138 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:09:52,138 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:09:52,139 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:09:52,139 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:09:52,139 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:09:52,139 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:09:52,139 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:09:52,139 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:09:52,140 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:09:52,140 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:09:52,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:52,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:52,140 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:09:52,140 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:09:52,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:09:52,141 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:09:52,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:09:52,141 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:09:52,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:09:52,141 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:09:52,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:09:52,142 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:09:52,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:09:52,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:09:52,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:09:52,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:09:52,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:09:52,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:09:52,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:09:52,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:09:52,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:09:52,143 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:09:52,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:09:52,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:09:52,144 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:09:52,144 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:09:52,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:09:52,144 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:09:52,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:09:52,144 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:09:52,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:09:52,145 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:09:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:09:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:09:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:09:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:09:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:09:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:09:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:09:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:09:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:09:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:09:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:09:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:09:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:09:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:09:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:09:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:09:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:09:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:09:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:09:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 23:09:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:09:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:09:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:09:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:09:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:09:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:09:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:09:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:09:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:09:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:09:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:09:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:09:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:09:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:09:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:09:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:09:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:09:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:09:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:09:52,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:09:52,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:09:52,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:52,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:09:52,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:52,152 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:52,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:09:52,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:09:52,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:09:52,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:09:52,153 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:09:52,153 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:09:52,153 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:09:52,153 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:09:52,154 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:09:52,154 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:09:52,154 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:09:52,154 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:09:52,154 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:09:52,154 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:09:52,154 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:09:52,155 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:09:52,155 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:09:52,155 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:09:52,155 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:09:52,155 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:09:52,155 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:09:52,155 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:09:52,156 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:09:52,156 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:09:52,156 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:09:52,156 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:09:52,156 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:09:52,156 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:09:52,156 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:09:52,156 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:09:52,157 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:09:52,157 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:09:52,157 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:09:52,157 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:09:52,157 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:09:52,157 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:09:52,157 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:09:52,158 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:09:52,158 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:09:52,158 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:09:52,158 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:09:52,158 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:52,158 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:52,158 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:09:52,159 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:09:52,159 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:09:52,159 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:09:52,159 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:09:52,159 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:09:52,159 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:09:52,159 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:09:52,160 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:09:52,160 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:09:52,160 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:09:52,160 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:09:52,160 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:09:52,160 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:09:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:09:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:09:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:09:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:09:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:09:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:09:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:09:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:09:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:09:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:09:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:09:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:09:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:09:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:09:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:09:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:09:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:09:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:09:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:09:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:09:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:09:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:09:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:09:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:09:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:09:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:09:56,693 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:09:56,695 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:09:56,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:56 BoogieIcfgContainer [2019-10-13 23:09:56,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:09:56,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:09:56,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:09:56,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:09:56,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:09:50" (1/3) ... [2019-10-13 23:09:56,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd67188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:56, skipping insertion in model container [2019-10-13 23:09:56,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:51" (2/3) ... [2019-10-13 23:09:56,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd67188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:56, skipping insertion in model container [2019-10-13 23:09:56,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:56" (3/3) ... [2019-10-13 23:09:56,707 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product30.cil.c [2019-10-13 23:09:56,717 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:09:56,729 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:09:56,744 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:09:56,791 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:09:56,791 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:09:56,791 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:09:56,791 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:09:56,792 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:09:56,792 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:09:56,792 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:09:56,792 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:09:56,820 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2019-10-13 23:09:56,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-13 23:09:56,840 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:56,841 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] [2019-10-13 23:09:56,844 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:56,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:56,850 INFO L82 PathProgramCache]: Analyzing trace with hash -2147122681, now seen corresponding path program 1 times [2019-10-13 23:09:56,860 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:56,861 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957028569] [2019-10-13 23:09:56,861 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:56,861 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:56,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:57,584 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 23:09:57,585 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957028569] [2019-10-13 23:09:57,586 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:57,586 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:09:57,586 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178038568] [2019-10-13 23:09:57,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:09:57,594 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:57,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:09:57,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:09:57,614 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 2 states. [2019-10-13 23:09:57,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:57,725 INFO L93 Difference]: Finished difference Result 586 states and 703 transitions. [2019-10-13 23:09:57,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:09:57,726 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-10-13 23:09:57,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:57,762 INFO L225 Difference]: With dead ends: 586 [2019-10-13 23:09:57,762 INFO L226 Difference]: Without dead ends: 368 [2019-10-13 23:09:57,772 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 23:09:57,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2019-10-13 23:09:57,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2019-10-13 23:09:57,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2019-10-13 23:09:57,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 437 transitions. [2019-10-13 23:09:57,856 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 437 transitions. Word has length 152 [2019-10-13 23:09:57,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:57,858 INFO L462 AbstractCegarLoop]: Abstraction has 368 states and 437 transitions. [2019-10-13 23:09:57,858 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:09:57,858 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 437 transitions. [2019-10-13 23:09:57,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-13 23:09:57,864 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:57,865 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] [2019-10-13 23:09:57,865 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:57,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:57,865 INFO L82 PathProgramCache]: Analyzing trace with hash -35923221, now seen corresponding path program 1 times [2019-10-13 23:09:57,866 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:57,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968085132] [2019-10-13 23:09:57,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:57,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:57,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:58,146 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 23:09:58,147 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968085132] [2019-10-13 23:09:58,147 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:58,147 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:58,147 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393284982] [2019-10-13 23:09:58,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:58,150 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:58,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:58,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:58,151 INFO L87 Difference]: Start difference. First operand 368 states and 437 transitions. Second operand 3 states. [2019-10-13 23:09:58,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:58,207 INFO L93 Difference]: Finished difference Result 571 states and 669 transitions. [2019-10-13 23:09:58,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:58,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-13 23:09:58,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:58,213 INFO L225 Difference]: With dead ends: 571 [2019-10-13 23:09:58,214 INFO L226 Difference]: Without dead ends: 370 [2019-10-13 23:09:58,216 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 23:09:58,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2019-10-13 23:09:58,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2019-10-13 23:09:58,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2019-10-13 23:09:58,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 439 transitions. [2019-10-13 23:09:58,255 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 439 transitions. Word has length 153 [2019-10-13 23:09:58,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:58,256 INFO L462 AbstractCegarLoop]: Abstraction has 370 states and 439 transitions. [2019-10-13 23:09:58,256 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:58,256 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 439 transitions. [2019-10-13 23:09:58,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 23:09:58,260 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:58,260 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] [2019-10-13 23:09:58,261 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:58,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:58,261 INFO L82 PathProgramCache]: Analyzing trace with hash -955945875, now seen corresponding path program 1 times [2019-10-13 23:09:58,262 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:58,262 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208728140] [2019-10-13 23:09:58,262 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:58,262 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:58,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:58,461 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 23:09:58,461 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208728140] [2019-10-13 23:09:58,461 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:58,462 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:58,462 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060849011] [2019-10-13 23:09:58,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:58,464 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:58,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:58,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:58,465 INFO L87 Difference]: Start difference. First operand 370 states and 439 transitions. Second operand 3 states. [2019-10-13 23:09:58,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:58,519 INFO L93 Difference]: Finished difference Result 722 states and 885 transitions. [2019-10-13 23:09:58,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:58,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-10-13 23:09:58,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:58,525 INFO L225 Difference]: With dead ends: 722 [2019-10-13 23:09:58,525 INFO L226 Difference]: Without dead ends: 410 [2019-10-13 23:09:58,527 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 23:09:58,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2019-10-13 23:09:58,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 409. [2019-10-13 23:09:58,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2019-10-13 23:09:58,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 507 transitions. [2019-10-13 23:09:58,564 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 507 transitions. Word has length 162 [2019-10-13 23:09:58,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:58,565 INFO L462 AbstractCegarLoop]: Abstraction has 409 states and 507 transitions. [2019-10-13 23:09:58,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:58,565 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 507 transitions. [2019-10-13 23:09:58,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-13 23:09:58,569 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:58,569 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] [2019-10-13 23:09:58,569 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:58,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:58,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1331504704, now seen corresponding path program 1 times [2019-10-13 23:09:58,570 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:58,570 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660642486] [2019-10-13 23:09:58,571 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:58,571 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:58,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:58,833 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 23:09:58,833 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660642486] [2019-10-13 23:09:58,834 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:58,834 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:58,834 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911627221] [2019-10-13 23:09:58,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:58,835 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:58,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:58,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:58,836 INFO L87 Difference]: Start difference. First operand 409 states and 507 transitions. Second operand 3 states. [2019-10-13 23:09:58,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:58,884 INFO L93 Difference]: Finished difference Result 836 states and 1084 transitions. [2019-10-13 23:09:58,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:58,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2019-10-13 23:09:58,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:58,894 INFO L225 Difference]: With dead ends: 836 [2019-10-13 23:09:58,894 INFO L226 Difference]: Without dead ends: 485 [2019-10-13 23:09:58,897 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 23:09:58,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-10-13 23:09:58,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 484. [2019-10-13 23:09:58,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2019-10-13 23:09:58,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 637 transitions. [2019-10-13 23:09:58,958 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 637 transitions. Word has length 163 [2019-10-13 23:09:58,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:58,958 INFO L462 AbstractCegarLoop]: Abstraction has 484 states and 637 transitions. [2019-10-13 23:09:58,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:58,959 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 637 transitions. [2019-10-13 23:09:58,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-13 23:09:58,968 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:58,969 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] [2019-10-13 23:09:58,969 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:58,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:58,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1253123207, now seen corresponding path program 1 times [2019-10-13 23:09:58,970 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:58,970 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384573771] [2019-10-13 23:09:58,970 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:58,971 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:58,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:59,882 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 23:09:59,883 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384573771] [2019-10-13 23:09:59,883 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:59,883 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-13 23:09:59,883 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99822868] [2019-10-13 23:09:59,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-13 23:09:59,885 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:59,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-13 23:09:59,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2019-10-13 23:09:59,887 INFO L87 Difference]: Start difference. First operand 484 states and 637 transitions. Second operand 25 states. [2019-10-13 23:10:13,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:13,913 INFO L93 Difference]: Finished difference Result 1162 states and 1421 transitions. [2019-10-13 23:10:13,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-10-13 23:10:13,914 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 166 [2019-10-13 23:10:13,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:13,921 INFO L225 Difference]: With dead ends: 1162 [2019-10-13 23:10:13,921 INFO L226 Difference]: Without dead ends: 886 [2019-10-13 23:10:13,924 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=381, Invalid=2811, Unknown=0, NotChecked=0, Total=3192 [2019-10-13 23:10:13,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2019-10-13 23:10:13,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 876. [2019-10-13 23:10:13,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-10-13 23:10:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1078 transitions. [2019-10-13 23:10:13,987 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1078 transitions. Word has length 166 [2019-10-13 23:10:13,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:13,989 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 1078 transitions. [2019-10-13 23:10:13,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-13 23:10:13,989 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1078 transitions. [2019-10-13 23:10:13,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-13 23:10:13,993 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:13,993 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] [2019-10-13 23:10:13,994 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:13,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:13,994 INFO L82 PathProgramCache]: Analyzing trace with hash 720504456, now seen corresponding path program 1 times [2019-10-13 23:10:13,995 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:13,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739699206] [2019-10-13 23:10:13,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:13,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:13,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:15,256 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 23:10:15,257 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739699206] [2019-10-13 23:10:15,257 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850113811] [2019-10-13 23:10:15,257 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 23:10:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:15,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 2887 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:10:15,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:10:16,090 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:10:16,091 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:10:16,455 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:10:16,455 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2104475054] [2019-10-13 23:10:16,486 INFO L162 IcfgInterpreter]: Started Sifa with 155 locations of interest [2019-10-13 23:10:16,486 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:10:16,494 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:10:16,501 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:10:16,502 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs