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_spec0_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:06:04,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:06:04,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:06:04,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:06:04,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:06:04,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:06:04,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:06:04,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:06:04,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:06:04,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:06:04,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:06:04,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:06:04,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:06:04,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:06:04,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:06:04,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:06:04,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:06:04,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:06:04,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:06:04,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:06:04,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:06:04,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:06:04,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:06:04,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:06:04,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:06:04,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:06:04,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:06:04,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:06:04,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:06:04,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:06:04,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:06:04,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:06:04,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:06:04,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:06:04,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:06:04,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:06:04,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:06:04,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:06:04,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:06:04,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:06:04,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:06:04,851 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 23:06:04,882 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:06:04,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:06:04,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:06:04,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:06:04,890 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:06:04,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:06:04,890 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:06:04,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:06:04,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:06:04,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:06:04,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:06:04,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:06:04,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:06:04,891 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:06:04,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:06:04,892 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:06:04,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:06:04,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:06:04,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:06:04,893 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:06:04,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:06:04,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:06:04,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:06:04,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:06:04,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:06:04,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:06:04,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:06:04,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:06:04,894 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:06:05,182 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:06:05,196 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:06:05,200 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:06:05,202 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:06:05,202 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:06:05,203 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product33.cil.c [2019-10-13 23:06:05,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ee330a9/6058da4342e14ab2a468e69ab1edb7a1/FLAGf2aeb415c [2019-10-13 23:06:05,929 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:06:05,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product33.cil.c [2019-10-13 23:06:05,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ee330a9/6058da4342e14ab2a468e69ab1edb7a1/FLAGf2aeb415c [2019-10-13 23:06:06,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ee330a9/6058da4342e14ab2a468e69ab1edb7a1 [2019-10-13 23:06:06,110 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:06:06,112 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:06:06,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:06:06,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:06:06,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:06:06,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:06:06" (1/1) ... [2019-10-13 23:06:06,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7156f2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:06, skipping insertion in model container [2019-10-13 23:06:06,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:06:06" (1/1) ... [2019-10-13 23:06:06,129 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:06:06,222 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:06:06,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:06:06,916 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:06:07,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:06:07,243 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:06:07,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:07 WrapperNode [2019-10-13 23:06:07,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:06:07,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:06:07,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:06:07,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:06:07,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:07" (1/1) ... [2019-10-13 23:06:07,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:07" (1/1) ... [2019-10-13 23:06:07,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:07" (1/1) ... [2019-10-13 23:06:07,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:07" (1/1) ... [2019-10-13 23:06:07,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:07" (1/1) ... [2019-10-13 23:06:07,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:07" (1/1) ... [2019-10-13 23:06:07,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:07" (1/1) ... [2019-10-13 23:06:07,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:06:07,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:06:07,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:06:07,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:06:07,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:07" (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 23:06:07,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:06:07,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:06:07,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:06:07,691 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:06:07,691 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:06:07,693 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:06:07,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:06:07,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:06:07,694 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:06:07,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:06:07,694 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:06:07,695 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:06:07,695 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:06:07,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:06:07,696 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:06:07,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:06:07,698 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:06:07,698 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:06:07,699 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:06:07,699 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:06:07,699 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:06:07,699 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:06:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:06:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:06:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:06:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:06:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:06:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:06:07,701 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:06:07,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:06:07,701 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:06:07,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:06:07,702 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:06:07,702 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 23:06:07,702 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:06:07,702 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:06:07,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:06:07,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:06:07,703 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:06:07,703 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:06:07,703 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:06:07,703 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:06:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:06:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:06:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:06:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 23:06:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:06:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:06:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:06:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:06:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:06:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:06:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:06:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:06:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:06:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:06:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:06:07,706 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:06:07,706 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:06:07,706 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:06:07,707 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:06:07,707 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:06:07,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:06:07,707 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:06:07,707 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:06:07,707 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:06:07,707 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:06:07,708 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:06:07,708 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:06:07,708 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:06:07,708 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:06:07,708 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:06:07,708 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:06:07,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:06:07,709 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:06:07,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:06:07,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:06:07,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:06:07,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:06:07,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:06:07,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:06:07,711 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:06:07,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:06:07,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:06:07,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:06:07,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:06:07,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:06:07,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:06:07,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:06:07,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:06:07,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:06:07,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:06:07,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:06:07,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:06:07,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:06:07,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:06:07,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:06:07,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:06:07,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:06:07,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:06:07,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:06:07,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:06:07,715 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:06:07,716 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:06:07,716 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:06:07,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:06:07,716 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:06:07,716 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:06:07,716 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:06:07,717 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:06:07,717 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:06:07,717 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:06:07,717 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:06:07,717 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:06:07,717 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:06:07,718 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:06:07,718 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:06:07,718 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:06:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:06:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:06:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:06:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:06:07,720 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:06:07,720 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:06:07,721 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:06:07,721 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:06:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:06:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:06:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:06:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:06:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:06:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:06:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:06:07,724 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:06:07,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:06:07,728 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:06:07,728 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:06:07,728 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:06:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:06:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:06:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:06:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:06:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:06:07,730 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:06:07,737 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:06:07,738 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:06:07,738 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:06:07,738 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:06:07,739 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:06:07,739 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:06:07,739 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:06:07,739 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:06:07,739 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:06:07,739 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:06:07,739 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:06:07,740 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:06:07,740 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:06:07,740 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:06:07,740 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:06:07,740 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:06:07,740 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:06:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:06:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:06:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:06:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:06:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:06:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 23:06:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:06:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:06:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:06:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:06:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:06:07,743 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:06:07,743 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:06:07,743 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:06:07,743 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 23:06:07,743 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:06:07,743 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:06:07,744 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:06:07,744 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:06:07,744 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:06:07,744 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:06:07,744 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:06:07,745 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:06:07,745 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:06:07,745 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:06:07,745 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:06:07,746 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:06:07,746 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:06:07,746 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:06:07,746 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:06:07,746 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:06:07,747 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:06:07,747 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:06:07,747 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:06:07,747 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:06:07,747 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:06:07,747 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:06:07,748 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:06:07,748 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:06:07,748 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:06:07,748 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:06:07,748 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:06:07,748 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:06:07,749 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:06:07,749 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:06:07,749 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:06:07,749 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:06:07,749 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:06:07,750 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:06:07,750 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:06:07,750 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:06:07,750 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:06:07,750 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:06:07,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:06:07,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:06:07,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:06:07,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:06:07,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:06:07,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:06:07,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:06:07,752 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:06:07,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:06:07,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:06:07,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:06:07,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:06:07,753 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:06:07,753 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:06:07,753 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:06:07,753 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:06:07,753 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:06:07,754 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:06:07,754 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:06:07,754 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:06:07,754 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:06:07,754 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:06:07,754 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:06:07,755 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:06:07,755 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:06:07,755 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:06:07,755 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:06:07,755 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:06:07,755 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:06:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:06:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:06:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:06:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:06:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:06:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:06:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:06:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:06:12,634 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:06:12,634 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:06:12,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:06:12 BoogieIcfgContainer [2019-10-13 23:06:12,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:06:12,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:06:12,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:06:12,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:06:12,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:06:06" (1/3) ... [2019-10-13 23:06:12,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234cbd1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:06:12, skipping insertion in model container [2019-10-13 23:06:12,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:07" (2/3) ... [2019-10-13 23:06:12,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234cbd1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:06:12, skipping insertion in model container [2019-10-13 23:06:12,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:06:12" (3/3) ... [2019-10-13 23:06:12,652 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product33.cil.c [2019-10-13 23:06:12,662 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:06:12,673 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:06:12,686 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:06:12,733 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:06:12,733 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:06:12,733 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:06:12,733 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:06:12,733 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:06:12,737 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:06:12,737 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:06:12,737 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:06:12,774 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states. [2019-10-13 23:06:12,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-13 23:06:12,796 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:12,798 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:12,801 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:12,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:12,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1137047191, now seen corresponding path program 1 times [2019-10-13 23:06:12,816 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:12,816 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263991968] [2019-10-13 23:06:12,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:12,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:12,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:13,468 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 23:06:13,469 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263991968] [2019-10-13 23:06:13,470 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:13,470 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:06:13,470 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023447791] [2019-10-13 23:06:13,475 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:06:13,476 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:13,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:06:13,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:06:13,493 INFO L87 Difference]: Start difference. First operand 431 states. Second operand 2 states. [2019-10-13 23:06:13,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:13,579 INFO L93 Difference]: Finished difference Result 663 states and 787 transitions. [2019-10-13 23:06:13,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:06:13,583 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 186 [2019-10-13 23:06:13,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:13,622 INFO L225 Difference]: With dead ends: 663 [2019-10-13 23:06:13,622 INFO L226 Difference]: Without dead ends: 410 [2019-10-13 23:06:13,638 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 23:06:13,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2019-10-13 23:06:13,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2019-10-13 23:06:13,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2019-10-13 23:06:13,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 483 transitions. [2019-10-13 23:06:13,762 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 483 transitions. Word has length 186 [2019-10-13 23:06:13,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:13,765 INFO L462 AbstractCegarLoop]: Abstraction has 410 states and 483 transitions. [2019-10-13 23:06:13,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:06:13,765 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 483 transitions. [2019-10-13 23:06:13,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-13 23:06:13,772 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:13,773 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:13,773 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:13,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:13,774 INFO L82 PathProgramCache]: Analyzing trace with hash -929461902, now seen corresponding path program 1 times [2019-10-13 23:06:13,774 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:13,774 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53954541] [2019-10-13 23:06:13,774 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:13,774 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:13,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:14,147 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 23:06:14,148 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53954541] [2019-10-13 23:06:14,148 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:14,148 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:06:14,149 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359607288] [2019-10-13 23:06:14,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:06:14,151 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:14,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:06:14,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:14,152 INFO L87 Difference]: Start difference. First operand 410 states and 483 transitions. Second operand 3 states. [2019-10-13 23:06:14,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:14,241 INFO L93 Difference]: Finished difference Result 648 states and 754 transitions. [2019-10-13 23:06:14,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:06:14,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-10-13 23:06:14,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:14,253 INFO L225 Difference]: With dead ends: 648 [2019-10-13 23:06:14,254 INFO L226 Difference]: Without dead ends: 412 [2019-10-13 23:06:14,259 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 23:06:14,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2019-10-13 23:06:14,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2019-10-13 23:06:14,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2019-10-13 23:06:14,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 485 transitions. [2019-10-13 23:06:14,297 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 485 transitions. Word has length 187 [2019-10-13 23:06:14,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:14,298 INFO L462 AbstractCegarLoop]: Abstraction has 412 states and 485 transitions. [2019-10-13 23:06:14,298 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:06:14,298 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 485 transitions. [2019-10-13 23:06:14,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-13 23:06:14,303 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:14,303 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:14,303 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:14,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:14,304 INFO L82 PathProgramCache]: Analyzing trace with hash -30771144, now seen corresponding path program 1 times [2019-10-13 23:06:14,304 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:14,304 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663648808] [2019-10-13 23:06:14,304 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:14,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:14,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:14,543 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 23:06:14,543 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663648808] [2019-10-13 23:06:14,544 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:14,544 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:06:14,544 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942043557] [2019-10-13 23:06:14,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:06:14,545 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:14,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:06:14,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:14,546 INFO L87 Difference]: Start difference. First operand 412 states and 485 transitions. Second operand 3 states. [2019-10-13 23:06:14,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:14,591 INFO L93 Difference]: Finished difference Result 808 states and 980 transitions. [2019-10-13 23:06:14,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:06:14,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-13 23:06:14,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:14,600 INFO L225 Difference]: With dead ends: 808 [2019-10-13 23:06:14,600 INFO L226 Difference]: Without dead ends: 454 [2019-10-13 23:06:14,602 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 23:06:14,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-10-13 23:06:14,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 453. [2019-10-13 23:06:14,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2019-10-13 23:06:14,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 556 transitions. [2019-10-13 23:06:14,636 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 556 transitions. Word has length 199 [2019-10-13 23:06:14,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:14,638 INFO L462 AbstractCegarLoop]: Abstraction has 453 states and 556 transitions. [2019-10-13 23:06:14,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:06:14,638 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 556 transitions. [2019-10-13 23:06:14,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 23:06:14,646 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:14,646 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:14,646 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:14,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:14,647 INFO L82 PathProgramCache]: Analyzing trace with hash 2127701846, now seen corresponding path program 1 times [2019-10-13 23:06:14,647 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:14,648 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297525413] [2019-10-13 23:06:14,648 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:14,649 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:14,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:15,728 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 23:06:15,729 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297525413] [2019-10-13 23:06:15,729 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159773907] [2019-10-13 23:06:15,729 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 23:06:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:16,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 2954 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:06:16,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:06:16,877 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 23:06:16,878 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:06:17,260 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 23:06:17,260 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [97060523] [2019-10-13 23:06:17,292 INFO L162 IcfgInterpreter]: Started Sifa with 175 locations of interest [2019-10-13 23:06:17,293 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:06:17,301 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:06:17,309 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:06:17,310 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs