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_spec1_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:07:41,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:07:41,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:07:41,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:07:41,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:07:41,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:07:41,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:07:41,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:07:41,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:07:41,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:07:41,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:07:41,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:07:41,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:07:41,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:07:41,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:07:41,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:07:41,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:07:41,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:07:41,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:07:41,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:07:41,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:07:41,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:07:41,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:07:41,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:07:41,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:07:41,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:07:41,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:07:41,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:07:41,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:07:41,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:07:41,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:07:41,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:07:41,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:07:41,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:07:41,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:07:41,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:07:41,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:07:41,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:07:41,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:07:41,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:07:41,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:07:41,165 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 23:07:41,191 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:07:41,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:07:41,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:07:41,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:07:41,194 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:07:41,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:07:41,194 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:07:41,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:07:41,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:07:41,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:07:41,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:07:41,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:07:41,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:07:41,195 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:07:41,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:07:41,196 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:07:41,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:07:41,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:07:41,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:07:41,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:07:41,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:07:41,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:07:41,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:07:41,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:07:41,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:07:41,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:07:41,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:07:41,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:07:41,198 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 23:07:41,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:07:41,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:07:41,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:07:41,524 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:07:41,524 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:07:41,525 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product26.cil.c [2019-10-13 23:07:41,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21ac3184e/d8c66b24b0fc40a9958403d64cf50270/FLAGaacb7505c [2019-10-13 23:07:42,238 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:07:42,238 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product26.cil.c [2019-10-13 23:07:42,257 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21ac3184e/d8c66b24b0fc40a9958403d64cf50270/FLAGaacb7505c [2019-10-13 23:07:42,434 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21ac3184e/d8c66b24b0fc40a9958403d64cf50270 [2019-10-13 23:07:42,442 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:07:42,444 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:07:42,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:07:42,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:07:42,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:07:42,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:07:42" (1/1) ... [2019-10-13 23:07:42,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f766d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:42, skipping insertion in model container [2019-10-13 23:07:42,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:07:42" (1/1) ... [2019-10-13 23:07:42,460 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:07:42,533 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:07:43,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:07:43,376 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:07:43,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:07:43,598 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:07:43,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:43 WrapperNode [2019-10-13 23:07:43,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:07:43,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:07:43,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:07:43,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:07:43,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:43" (1/1) ... [2019-10-13 23:07:43,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:43" (1/1) ... [2019-10-13 23:07:43,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:43" (1/1) ... [2019-10-13 23:07:43,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:43" (1/1) ... [2019-10-13 23:07:43,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:43" (1/1) ... [2019-10-13 23:07:43,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:43" (1/1) ... [2019-10-13 23:07:43,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:43" (1/1) ... [2019-10-13 23:07:43,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:07:43,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:07:43,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:07:43,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:07:43,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:43" (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 23:07:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:07:43,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:07:43,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:07:43,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:07:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:07:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:07:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:07:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:07:43,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:07:43,859 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:07:43,859 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:07:43,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:07:43,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:07:43,861 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:07:43,861 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:07:43,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:07:43,864 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:07:43,864 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:07:43,864 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:07:43,865 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:07:43,865 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:07:43,866 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:07:43,866 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:07:43,866 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:07:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:07:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:07:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:07:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:07:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:07:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:07:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:07:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:07:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:07:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:07:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:07:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:07:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:07:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 23:07:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:07:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:07:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:07:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:07:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:07:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:07:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:07:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:07:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:07:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:07:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:07:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:07:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:07:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:07:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:07:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:07:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:07:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:07:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:07:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:07:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:07:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:07:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:07:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:07:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:07:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:07:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:07:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:07:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:07:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:07:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:07:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:07:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:07:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:07:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:07:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:07:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:07:43,878 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:07:43,878 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:07:43,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:07:43,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:07:43,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:07:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:07:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:07:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:07:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:07:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:07:43,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:07:43,881 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:07:43,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 23:07:43,882 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:07:43,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:07:43,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:07:43,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:07:43,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:07:43,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:07:43,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:07:43,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:07:43,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:07:43,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:07:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:07:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:07:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:07:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:07:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:07:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:07:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:07:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:07:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:07:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:07:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:07:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:07:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:07:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:07:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:07:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:07:43,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:07:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:07:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:07:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:07:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:07:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:07:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:07:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:07:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:07:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:07:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:07:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:07:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:07:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:07:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:07:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:07:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:07:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:07:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:07:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:07:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:07:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:07:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:07:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:07:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:07:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:07:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:07:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:07:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:07:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:07:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:07:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:07:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:07:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:07:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:07:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:07:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:07:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:07:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:07:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:07:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:07:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:07:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:07:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:07:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:07:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:07:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:07:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:07:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:07:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:07:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:07:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:07:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:07:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:07:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:07:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:07:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:07:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:07:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:07:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:07:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:07:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:07:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:07:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:07:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:07:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:07:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:07:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:07:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:07:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:07:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:07:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:07:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:07:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:07:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:07:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:07:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:07:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:07:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:07:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:07:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:07:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:07:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 23:07:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:07:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:07:43,916 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:07:43,917 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 23:07:43,917 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:07:43,917 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:07:43,917 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:07:43,917 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:07:43,917 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:07:43,918 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:07:43,918 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:07:43,918 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:07:43,918 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:07:43,918 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:07:43,918 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:07:43,918 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:07:43,919 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:07:43,919 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:07:43,919 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:07:43,919 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:07:43,919 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:07:43,919 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:07:43,920 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:07:43,920 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:07:43,920 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:07:43,920 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:07:43,920 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:07:43,920 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:07:43,920 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:07:43,921 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:07:43,921 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:07:43,921 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:07:43,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:07:43,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:07:43,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:07:43,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:07:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:07:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:07:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:07:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:07:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:07:43,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:07:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:07:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:07:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:07:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:07:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:07:43,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:07:48,777 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:07:48,778 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:07:48,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:07:48 BoogieIcfgContainer [2019-10-13 23:07:48,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:07:48,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:07:48,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:07:48,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:07:48,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:07:42" (1/3) ... [2019-10-13 23:07:48,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba7a312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:07:48, skipping insertion in model container [2019-10-13 23:07:48,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:43" (2/3) ... [2019-10-13 23:07:48,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba7a312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:07:48, skipping insertion in model container [2019-10-13 23:07:48,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:07:48" (3/3) ... [2019-10-13 23:07:48,788 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product26.cil.c [2019-10-13 23:07:48,799 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:07:48,821 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:07:48,835 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:07:48,934 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:07:48,934 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:07:48,934 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:07:48,934 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:07:48,935 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:07:48,935 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:07:48,935 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:07:48,935 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:07:48,988 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states. [2019-10-13 23:07:49,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-13 23:07:49,006 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:49,008 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] [2019-10-13 23:07:49,010 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:49,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:49,017 INFO L82 PathProgramCache]: Analyzing trace with hash -785383817, now seen corresponding path program 1 times [2019-10-13 23:07:49,027 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:49,028 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713062410] [2019-10-13 23:07:49,028 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:49,028 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:49,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:49,692 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 23:07:49,693 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713062410] [2019-10-13 23:07:49,694 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:49,694 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:07:49,695 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872105105] [2019-10-13 23:07:49,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:07:49,700 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:49,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:07:49,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:07:49,718 INFO L87 Difference]: Start difference. First operand 417 states. Second operand 2 states. [2019-10-13 23:07:49,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:49,841 INFO L93 Difference]: Finished difference Result 609 states and 726 transitions. [2019-10-13 23:07:49,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:07:49,843 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 121 [2019-10-13 23:07:49,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:49,880 INFO L225 Difference]: With dead ends: 609 [2019-10-13 23:07:49,881 INFO L226 Difference]: Without dead ends: 390 [2019-10-13 23:07:49,897 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 23:07:49,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2019-10-13 23:07:49,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2019-10-13 23:07:50,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2019-10-13 23:07:50,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 461 transitions. [2019-10-13 23:07:50,007 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 461 transitions. Word has length 121 [2019-10-13 23:07:50,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:50,009 INFO L462 AbstractCegarLoop]: Abstraction has 390 states and 461 transitions. [2019-10-13 23:07:50,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:07:50,009 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 461 transitions. [2019-10-13 23:07:50,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-13 23:07:50,016 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:50,016 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] [2019-10-13 23:07:50,016 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:50,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:50,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1012250158, now seen corresponding path program 1 times [2019-10-13 23:07:50,017 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:50,017 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101076338] [2019-10-13 23:07:50,018 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:50,018 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:50,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:50,214 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 23:07:50,215 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101076338] [2019-10-13 23:07:50,215 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:50,215 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:07:50,216 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828947294] [2019-10-13 23:07:50,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:07:50,218 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:50,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:07:50,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:50,219 INFO L87 Difference]: Start difference. First operand 390 states and 461 transitions. Second operand 3 states. [2019-10-13 23:07:50,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:50,295 INFO L93 Difference]: Finished difference Result 594 states and 695 transitions. [2019-10-13 23:07:50,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:07:50,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2019-10-13 23:07:50,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:50,304 INFO L225 Difference]: With dead ends: 594 [2019-10-13 23:07:50,304 INFO L226 Difference]: Without dead ends: 392 [2019-10-13 23:07:50,307 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 23:07:50,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-10-13 23:07:50,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2019-10-13 23:07:50,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 392 states. [2019-10-13 23:07:50,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 463 transitions. [2019-10-13 23:07:50,363 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 463 transitions. Word has length 122 [2019-10-13 23:07:50,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:50,365 INFO L462 AbstractCegarLoop]: Abstraction has 392 states and 463 transitions. [2019-10-13 23:07:50,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:07:50,365 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 463 transitions. [2019-10-13 23:07:50,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-13 23:07:50,374 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:50,374 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] [2019-10-13 23:07:50,374 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:50,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:50,375 INFO L82 PathProgramCache]: Analyzing trace with hash 464025449, now seen corresponding path program 1 times [2019-10-13 23:07:50,375 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:50,375 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457399204] [2019-10-13 23:07:50,375 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:50,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:50,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:50,713 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 23:07:50,714 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457399204] [2019-10-13 23:07:50,714 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:50,714 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:07:50,714 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447182794] [2019-10-13 23:07:50,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:07:50,715 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:50,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:07:50,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:50,716 INFO L87 Difference]: Start difference. First operand 392 states and 463 transitions. Second operand 3 states. [2019-10-13 23:07:50,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:50,750 INFO L93 Difference]: Finished difference Result 770 states and 939 transitions. [2019-10-13 23:07:50,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:07:50,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2019-10-13 23:07:50,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:50,755 INFO L225 Difference]: With dead ends: 770 [2019-10-13 23:07:50,756 INFO L226 Difference]: Without dead ends: 436 [2019-10-13 23:07:50,757 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 23:07:50,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2019-10-13 23:07:50,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 435. [2019-10-13 23:07:50,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2019-10-13 23:07:50,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 537 transitions. [2019-10-13 23:07:50,794 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 537 transitions. Word has length 134 [2019-10-13 23:07:50,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:50,795 INFO L462 AbstractCegarLoop]: Abstraction has 435 states and 537 transitions. [2019-10-13 23:07:50,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:07:50,796 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 537 transitions. [2019-10-13 23:07:50,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-13 23:07:50,799 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:50,799 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] [2019-10-13 23:07:50,800 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:50,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:50,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1351774969, now seen corresponding path program 1 times [2019-10-13 23:07:50,802 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:50,802 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233367095] [2019-10-13 23:07:50,802 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:50,803 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:50,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:51,043 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 23:07:51,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233367095] [2019-10-13 23:07:51,047 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217840135] [2019-10-13 23:07:51,047 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 23:07:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:51,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 2643 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:07:51,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:07:51,931 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 23:07:51,932 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:07:52,151 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 23:07:52,152 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2047895660] [2019-10-13 23:07:52,184 INFO L162 IcfgInterpreter]: Started Sifa with 124 locations of interest [2019-10-13 23:07:52,185 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:07:52,191 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:07:52,199 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:07:52,200 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs