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_spec6_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:11:18,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:11:18,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:11:18,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:11:18,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:11:18,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:11:18,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:11:18,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:11:18,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:11:18,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:11:18,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:11:18,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:11:18,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:11:18,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:11:18,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:11:18,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:11:18,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:11:18,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:11:18,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:11:18,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:11:18,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:11:18,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:11:18,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:11:18,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:11:18,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:11:18,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:11:18,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:11:18,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:11:18,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:11:18,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:11:18,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:11:18,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:11:18,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:11:18,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:11:18,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:11:18,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:11:18,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:11:18,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:11:18,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:11:18,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:11:18,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:11:18,899 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 23:11:18,919 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:11:18,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:11:18,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:11:18,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:11:18,922 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:11:18,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:11:18,922 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:11:18,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:11:18,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:11:18,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:11:18,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:11:18,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:11:18,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:11:18,924 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:11:18,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:11:18,925 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:11:18,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:11:18,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:11:18,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:11:18,926 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:11:18,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:11:18,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:11:18,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:11:18,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:11:18,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:11:18,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:11:18,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:11:18,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:11:18,929 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 23:11:19,264 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:11:19,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:11:19,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:11:19,283 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:11:19,283 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:11:19,284 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product34.cil.c [2019-10-13 23:11:19,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91e0435b1/f5c4246c69874a9bbd2c5faf18de647b/FLAG28e73fd0f [2019-10-13 23:11:20,036 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:11:20,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product34.cil.c [2019-10-13 23:11:20,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91e0435b1/f5c4246c69874a9bbd2c5faf18de647b/FLAG28e73fd0f [2019-10-13 23:11:20,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91e0435b1/f5c4246c69874a9bbd2c5faf18de647b [2019-10-13 23:11:20,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:11:20,214 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:11:20,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:20,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:11:20,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:11:20,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:20" (1/1) ... [2019-10-13 23:11:20,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21eb6a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:20, skipping insertion in model container [2019-10-13 23:11:20,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:20" (1/1) ... [2019-10-13 23:11:20,235 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:11:20,337 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:11:21,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:21,246 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:11:21,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:21,535 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:11:21,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21 WrapperNode [2019-10-13 23:11:21,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:21,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:11:21,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:11:21,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:11:21,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (1/1) ... [2019-10-13 23:11:21,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (1/1) ... [2019-10-13 23:11:21,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (1/1) ... [2019-10-13 23:11:21,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (1/1) ... [2019-10-13 23:11:21,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (1/1) ... [2019-10-13 23:11:21,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (1/1) ... [2019-10-13 23:11:21,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (1/1) ... [2019-10-13 23:11:21,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:11:21,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:11:21,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:11:21,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:11:21,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (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 23:11:21,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:11:21,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:11:21,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:21,826 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:11:21,826 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:11:21,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:11:21,827 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:11:21,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:21,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:21,827 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:11:21,827 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:11:21,828 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:11:21,828 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:11:21,828 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:11:21,828 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:11:21,828 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:11:21,829 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:11:21,829 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:11:21,829 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:11:21,829 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:11:21,829 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:11:21,831 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:11:21,831 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:11:21,831 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:11:21,831 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:11:21,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:11:21,832 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:11:21,832 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:11:21,832 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:11:21,832 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:11:21,832 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:11:21,832 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:11:21,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:11:21,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:21,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:21,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:11:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:11:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:11:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:11:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:11:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:11:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:11:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:11:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:11:21,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:11:21,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:11:21,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:11:21,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:11:21,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:11:21,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:11:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:11:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:11:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:11:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:11:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:11:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:11:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:11:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:11:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:11:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:11:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:11:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:11:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:11:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:11:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:11:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:11:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:11:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:11:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:11:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:11:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:11:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:11:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:11:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:11:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:11:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:11:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:11:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:11:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:11:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:11:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:11:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:11:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:11:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:11:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:11:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:11:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:11:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:11:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:11:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:11:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:11:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:11:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:11:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:11:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:11:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:11:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:11:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:11:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:11:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:11:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:11:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:11:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:11:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:11:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:11:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:11:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:11:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:11:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:11:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:11:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:11:21,844 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:11:21,844 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:11:21,844 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:11:21,844 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:11:21,844 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:11:21,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:11:21,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:11:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:11:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:11:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:11:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:11:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:11:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:11:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:11:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:11:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:11:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:11:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:11:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:11:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:11:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:11:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:11:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:11:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:11:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:11:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:11:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:11:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:11:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:11:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:11:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:11:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:11:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:11:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:11:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:11:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:11:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:11:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:11:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:11:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:11:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:11:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:11:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:11:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:11:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:11:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:11:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:11:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:11:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:11:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:11:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:11:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:11:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:11:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:11:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:11:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:11:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:11:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:11:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:11:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:11:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:11:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:11:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:11:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:11:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:11:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:11:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:11:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:11:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:11:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:21,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:11:21,855 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:21,855 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:21,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:11:21,855 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:11:21,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:11:21,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:11:21,856 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:11:21,856 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:11:21,856 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:11:21,856 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:11:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:11:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:11:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:11:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:11:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:11:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:11:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:11:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:11:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:11:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:11:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:11:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:11:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:11:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:11:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:11:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:11:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:11:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:11:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:11:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:11:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:11:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:11:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:11:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:11:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:11:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:11:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:11:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:11:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:11:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:11:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:11:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:11:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:11:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:11:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:11:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:11:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:11:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:11:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:11:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:11:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:11:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:11:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:11:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:11:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:11:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:11:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:11:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:11:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:11:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:11:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:11:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:11:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:11:26,534 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:11:26,535 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:11:26,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:26 BoogieIcfgContainer [2019-10-13 23:11:26,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:11:26,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:11:26,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:11:26,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:11:26,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:11:20" (1/3) ... [2019-10-13 23:11:26,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2829b15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:26, skipping insertion in model container [2019-10-13 23:11:26,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (2/3) ... [2019-10-13 23:11:26,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2829b15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:26, skipping insertion in model container [2019-10-13 23:11:26,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:26" (3/3) ... [2019-10-13 23:11:26,545 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product34.cil.c [2019-10-13 23:11:26,556 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:11:26,565 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:11:26,577 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:11:26,607 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:11:26,607 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:11:26,607 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:11:26,608 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:11:26,608 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:11:26,608 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:11:26,608 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:11:26,608 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:11:26,659 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states. [2019-10-13 23:11:26,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 23:11:26,680 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:26,682 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:11:26,683 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:26,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:26,688 INFO L82 PathProgramCache]: Analyzing trace with hash 165088858, now seen corresponding path program 1 times [2019-10-13 23:11:26,699 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:26,699 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250626535] [2019-10-13 23:11:26,700 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:26,700 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:26,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:27,492 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:27,493 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250626535] [2019-10-13 23:11:27,494 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:27,494 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:11:27,495 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341171768] [2019-10-13 23:11:27,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:11:27,503 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:27,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:11:27,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:11:27,520 INFO L87 Difference]: Start difference. First operand 462 states. Second operand 2 states. [2019-10-13 23:11:27,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:27,643 INFO L93 Difference]: Finished difference Result 706 states and 845 transitions. [2019-10-13 23:11:27,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:11:27,645 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-13 23:11:27,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:27,679 INFO L225 Difference]: With dead ends: 706 [2019-10-13 23:11:27,679 INFO L226 Difference]: Without dead ends: 435 [2019-10-13 23:11:27,691 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 23:11:27,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2019-10-13 23:11:27,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2019-10-13 23:11:27,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2019-10-13 23:11:27,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 516 transitions. [2019-10-13 23:11:27,850 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 516 transitions. Word has length 154 [2019-10-13 23:11:27,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:27,852 INFO L462 AbstractCegarLoop]: Abstraction has 435 states and 516 transitions. [2019-10-13 23:11:27,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:11:27,853 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 516 transitions. [2019-10-13 23:11:27,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 23:11:27,865 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:27,866 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:11:27,866 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:27,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:27,867 INFO L82 PathProgramCache]: Analyzing trace with hash 2013150457, now seen corresponding path program 1 times [2019-10-13 23:11:27,867 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:27,868 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377449340] [2019-10-13 23:11:27,868 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:27,868 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:27,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:28,164 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:28,165 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377449340] [2019-10-13 23:11:28,165 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:28,165 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:28,165 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202849817] [2019-10-13 23:11:28,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:28,169 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:28,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:28,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:28,170 INFO L87 Difference]: Start difference. First operand 435 states and 516 transitions. Second operand 3 states. [2019-10-13 23:11:28,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:28,236 INFO L93 Difference]: Finished difference Result 691 states and 812 transitions. [2019-10-13 23:11:28,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:28,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-13 23:11:28,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:28,243 INFO L225 Difference]: With dead ends: 691 [2019-10-13 23:11:28,243 INFO L226 Difference]: Without dead ends: 437 [2019-10-13 23:11:28,245 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 23:11:28,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2019-10-13 23:11:28,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2019-10-13 23:11:28,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-10-13 23:11:28,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 518 transitions. [2019-10-13 23:11:28,278 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 518 transitions. Word has length 155 [2019-10-13 23:11:28,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:28,279 INFO L462 AbstractCegarLoop]: Abstraction has 437 states and 518 transitions. [2019-10-13 23:11:28,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:28,279 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 518 transitions. [2019-10-13 23:11:28,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 23:11:28,285 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:28,285 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:28,285 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:28,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:28,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1244038619, now seen corresponding path program 1 times [2019-10-13 23:11:28,286 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:28,286 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116373097] [2019-10-13 23:11:28,286 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:28,286 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:28,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:28,661 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116373097] [2019-10-13 23:11:28,661 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:28,661 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:28,662 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542720951] [2019-10-13 23:11:28,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:28,663 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:28,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:28,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:28,664 INFO L87 Difference]: Start difference. First operand 437 states and 518 transitions. Second operand 3 states. [2019-10-13 23:11:28,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:28,721 INFO L93 Difference]: Finished difference Result 858 states and 1046 transitions. [2019-10-13 23:11:28,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:28,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-13 23:11:28,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:28,729 INFO L225 Difference]: With dead ends: 858 [2019-10-13 23:11:28,729 INFO L226 Difference]: Without dead ends: 479 [2019-10-13 23:11:28,732 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 23:11:28,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2019-10-13 23:11:28,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 478. [2019-10-13 23:11:28,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-10-13 23:11:28,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 589 transitions. [2019-10-13 23:11:28,787 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 589 transitions. Word has length 160 [2019-10-13 23:11:28,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:28,788 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 589 transitions. [2019-10-13 23:11:28,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:28,791 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 589 transitions. [2019-10-13 23:11:28,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-13 23:11:28,798 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:28,799 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:28,799 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:28,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:28,802 INFO L82 PathProgramCache]: Analyzing trace with hash 719617438, now seen corresponding path program 1 times [2019-10-13 23:11:28,803 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:28,803 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577582826] [2019-10-13 23:11:28,804 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:28,804 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:28,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:29,638 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:11:29,638 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577582826] [2019-10-13 23:11:29,638 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:29,639 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-13 23:11:29,639 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683855648] [2019-10-13 23:11:29,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-13 23:11:29,640 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:29,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-13 23:11:29,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:11:29,642 INFO L87 Difference]: Start difference. First operand 478 states and 589 transitions. Second operand 26 states. [2019-10-13 23:11:40,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:40,669 INFO L93 Difference]: Finished difference Result 1410 states and 1733 transitions. [2019-10-13 23:11:40,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-13 23:11:40,670 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 161 [2019-10-13 23:11:40,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:40,678 INFO L225 Difference]: With dead ends: 1410 [2019-10-13 23:11:40,678 INFO L226 Difference]: Without dead ends: 1160 [2019-10-13 23:11:40,681 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=294, Invalid=2898, Unknown=0, NotChecked=0, Total=3192 [2019-10-13 23:11:40,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2019-10-13 23:11:40,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1147. [2019-10-13 23:11:40,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1147 states. [2019-10-13 23:11:40,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1391 transitions. [2019-10-13 23:11:40,826 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1391 transitions. Word has length 161 [2019-10-13 23:11:40,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:40,828 INFO L462 AbstractCegarLoop]: Abstraction has 1147 states and 1391 transitions. [2019-10-13 23:11:40,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-13 23:11:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1391 transitions. [2019-10-13 23:11:40,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-13 23:11:40,832 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:40,833 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:40,833 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:40,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:40,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1940424473, now seen corresponding path program 1 times [2019-10-13 23:11:40,834 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:40,834 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596047168] [2019-10-13 23:11:40,835 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:40,835 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:40,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:41,556 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 23:11:41,557 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596047168] [2019-10-13 23:11:41,557 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132385180] [2019-10-13 23:11:41,558 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 23:11:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:42,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 3073 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:11:42,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:11:42,522 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:42,522 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:11:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:42,838 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1445282199] [2019-10-13 23:11:42,871 INFO L162 IcfgInterpreter]: Started Sifa with 152 locations of interest [2019-10-13 23:11:42,871 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:11:42,883 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:11:42,892 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:11:42,893 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs