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_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:55,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:55,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:55,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:55,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:55,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:55,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:55,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:55,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:55,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:55,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:55,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:55,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:55,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:55,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:55,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:55,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:55,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:55,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:55,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:55,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:55,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:55,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:55,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:55,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:55,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:55,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:55,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:55,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:55,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:55,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:55,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:55,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:55,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:55,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:55,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:55,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:55,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:55,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:55,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:55,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:55,846 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 [2019-10-15 03:15:55,866 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:55,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:55,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:55,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:55,869 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:55,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:55,869 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:55,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:55,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:55,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:55,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:55,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:55,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:55,872 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:55,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:55,873 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:55,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:55,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:55,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:55,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:55,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:55,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:55,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:55,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:55,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:55,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:55,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:55,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:55,875 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 [2019-10-15 03:15:56,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:56,162 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:56,169 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:56,170 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:56,171 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:56,172 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product30.cil.c [2019-10-15 03:15:56,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a7e73f0e/28ef5b87d0194e8191df1a8f22a8547f/FLAG67f0b4960 [2019-10-15 03:15:56,846 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:56,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product30.cil.c [2019-10-15 03:15:56,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a7e73f0e/28ef5b87d0194e8191df1a8f22a8547f/FLAG67f0b4960 [2019-10-15 03:15:57,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a7e73f0e/28ef5b87d0194e8191df1a8f22a8547f [2019-10-15 03:15:57,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:57,091 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:57,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:57,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:57,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:57,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:57" (1/1) ... [2019-10-15 03:15:57,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21180631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:57, skipping insertion in model container [2019-10-15 03:15:57,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:57" (1/1) ... [2019-10-15 03:15:57,106 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:57,179 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:57,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:57,956 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:58,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:58,142 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:58,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:58 WrapperNode [2019-10-15 03:15:58,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:58,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:58,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:58,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:58,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:58" (1/1) ... [2019-10-15 03:15:58,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:58" (1/1) ... [2019-10-15 03:15:58,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:58" (1/1) ... [2019-10-15 03:15:58,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:58" (1/1) ... [2019-10-15 03:15:58,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:58" (1/1) ... [2019-10-15 03:15:58,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:58" (1/1) ... [2019-10-15 03:15:58,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:58" (1/1) ... [2019-10-15 03:15:58,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:58,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:58,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:58,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:58,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:58" (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 [2019-10-15 03:15:58,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:58,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:58,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:58,410 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:58,411 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:58,411 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:58,411 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:58,411 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:58,411 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:58,412 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:58,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:58,412 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:58,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:58,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:58,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:58,413 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:58,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:58,414 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:58,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:58,414 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:58,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:58,414 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:58,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:58,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:58,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:58,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:58,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:58,416 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:58,416 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:58,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:58,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:58,417 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:58,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:58,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:58,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:58,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:58,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:58,418 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:58,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:58,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:58,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:58,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:58,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:58,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:58,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:58,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:58,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:58,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:58,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:58,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:58,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:58,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:58,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:58,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:58,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:58,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:58,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:58,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:58,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:58,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:58,423 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:58,423 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:58,423 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:15:58,423 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:15:58,423 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:58,424 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:58,424 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:15:58,424 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:15:58,424 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:15:58,424 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:58,424 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:58,425 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:58,425 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:58,425 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:58,425 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:58,425 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:58,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:58,426 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:58,426 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:15:58,426 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:15:58,426 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:15:58,426 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:15:58,426 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-15 03:15:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 03:15:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:15:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:58,431 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:58,431 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:58,431 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:58,431 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:58,431 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:15:58,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:58,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:58,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:58,432 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:58,432 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:15:58,432 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:58,432 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:58,433 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:58,433 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:58,433 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:58,433 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:58,433 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:58,433 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:58,433 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:58,434 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:58,434 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:58,434 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:58,434 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:58,434 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:58,434 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:58,443 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:58,443 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:58,443 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:58,443 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:58,443 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:15:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:15:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:15:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:15:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:15:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:15:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:15:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:15:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:15:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-15 03:15:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 03:15:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:15:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:16:03,271 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:16:03,271 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:16:03,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:16:03 BoogieIcfgContainer [2019-10-15 03:16:03,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:16:03,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:16:03,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:16:03,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:16:03,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:57" (1/3) ... [2019-10-15 03:16:03,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f77832a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:16:03, skipping insertion in model container [2019-10-15 03:16:03,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:58" (2/3) ... [2019-10-15 03:16:03,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f77832a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:16:03, skipping insertion in model container [2019-10-15 03:16:03,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:16:03" (3/3) ... [2019-10-15 03:16:03,281 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product30.cil.c [2019-10-15 03:16:03,292 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:16:03,306 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:16:03,322 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:16:03,362 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:16:03,363 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:16:03,363 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:16:03,363 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:16:03,363 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:16:03,364 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:16:03,364 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:16:03,364 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:16:03,401 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states. [2019-10-15 03:16:03,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-15 03:16:03,436 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:03,438 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] [2019-10-15 03:16:03,440 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:03,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:03,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1899854720, now seen corresponding path program 1 times [2019-10-15 03:16:03,456 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:03,457 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699742085] [2019-10-15 03:16:03,457 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:03,457 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:03,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:04,092 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:04,093 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699742085] [2019-10-15 03:16:04,094 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:04,094 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:16:04,095 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986049914] [2019-10-15 03:16:04,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:16:04,103 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:04,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:16:04,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:16:04,121 INFO L87 Difference]: Start difference. First operand 406 states. Second operand 2 states. [2019-10-15 03:16:04,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:04,234 INFO L93 Difference]: Finished difference Result 578 states and 687 transitions. [2019-10-15 03:16:04,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:16:04,236 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 147 [2019-10-15 03:16:04,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:04,275 INFO L225 Difference]: With dead ends: 578 [2019-10-15 03:16:04,275 INFO L226 Difference]: Without dead ends: 364 [2019-10-15 03:16:04,290 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 [2019-10-15 03:16:04,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-10-15 03:16:04,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2019-10-15 03:16:04,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2019-10-15 03:16:04,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 431 transitions. [2019-10-15 03:16:04,416 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 431 transitions. Word has length 147 [2019-10-15 03:16:04,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:04,419 INFO L462 AbstractCegarLoop]: Abstraction has 364 states and 431 transitions. [2019-10-15 03:16:04,419 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:16:04,419 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 431 transitions. [2019-10-15 03:16:04,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-15 03:16:04,424 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:04,424 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] [2019-10-15 03:16:04,425 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:04,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:04,425 INFO L82 PathProgramCache]: Analyzing trace with hash -983052683, now seen corresponding path program 1 times [2019-10-15 03:16:04,425 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:04,426 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735484852] [2019-10-15 03:16:04,426 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:04,426 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:04,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:04,793 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:04,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735484852] [2019-10-15 03:16:04,794 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:04,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:04,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017781558] [2019-10-15 03:16:04,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:04,799 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:04,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:04,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:04,800 INFO L87 Difference]: Start difference. First operand 364 states and 431 transitions. Second operand 3 states. [2019-10-15 03:16:04,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:04,884 INFO L93 Difference]: Finished difference Result 563 states and 657 transitions. [2019-10-15 03:16:04,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:04,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2019-10-15 03:16:04,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:04,891 INFO L225 Difference]: With dead ends: 563 [2019-10-15 03:16:04,891 INFO L226 Difference]: Without dead ends: 366 [2019-10-15 03:16:04,898 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 [2019-10-15 03:16:04,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-10-15 03:16:04,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2019-10-15 03:16:04,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2019-10-15 03:16:04,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 433 transitions. [2019-10-15 03:16:04,933 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 433 transitions. Word has length 148 [2019-10-15 03:16:04,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:04,934 INFO L462 AbstractCegarLoop]: Abstraction has 366 states and 433 transitions. [2019-10-15 03:16:04,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:04,934 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 433 transitions. [2019-10-15 03:16:04,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-15 03:16:04,938 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:04,938 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] [2019-10-15 03:16:04,939 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:04,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:04,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1503953409, now seen corresponding path program 1 times [2019-10-15 03:16:04,939 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:04,940 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799787098] [2019-10-15 03:16:04,940 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:04,940 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:04,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:05,132 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:05,132 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799787098] [2019-10-15 03:16:05,133 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:05,133 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:05,133 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226995865] [2019-10-15 03:16:05,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:05,134 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:05,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:05,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:05,135 INFO L87 Difference]: Start difference. First operand 366 states and 433 transitions. Second operand 3 states. [2019-10-15 03:16:05,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:05,185 INFO L93 Difference]: Finished difference Result 714 states and 873 transitions. [2019-10-15 03:16:05,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:05,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-10-15 03:16:05,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:05,189 INFO L225 Difference]: With dead ends: 714 [2019-10-15 03:16:05,190 INFO L226 Difference]: Without dead ends: 406 [2019-10-15 03:16:05,191 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 [2019-10-15 03:16:05,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2019-10-15 03:16:05,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 405. [2019-10-15 03:16:05,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-15 03:16:05,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 501 transitions. [2019-10-15 03:16:05,212 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 501 transitions. Word has length 157 [2019-10-15 03:16:05,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:05,213 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 501 transitions. [2019-10-15 03:16:05,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:05,213 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 501 transitions. [2019-10-15 03:16:05,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-15 03:16:05,216 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:05,217 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] [2019-10-15 03:16:05,217 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:05,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:05,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1864939964, now seen corresponding path program 1 times [2019-10-15 03:16:05,218 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:05,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773894508] [2019-10-15 03:16:05,218 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:05,218 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:05,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:05,377 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:05,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773894508] [2019-10-15 03:16:05,378 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:05,378 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:05,378 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732499438] [2019-10-15 03:16:05,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:05,380 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:05,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:05,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:05,380 INFO L87 Difference]: Start difference. First operand 405 states and 501 transitions. Second operand 3 states. [2019-10-15 03:16:05,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:05,415 INFO L93 Difference]: Finished difference Result 828 states and 1072 transitions. [2019-10-15 03:16:05,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:05,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-10-15 03:16:05,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:05,425 INFO L225 Difference]: With dead ends: 828 [2019-10-15 03:16:05,425 INFO L226 Difference]: Without dead ends: 481 [2019-10-15 03:16:05,427 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 [2019-10-15 03:16:05,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2019-10-15 03:16:05,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 480. [2019-10-15 03:16:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2019-10-15 03:16:05,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 631 transitions. [2019-10-15 03:16:05,473 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 631 transitions. Word has length 158 [2019-10-15 03:16:05,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:05,474 INFO L462 AbstractCegarLoop]: Abstraction has 480 states and 631 transitions. [2019-10-15 03:16:05,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:05,474 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 631 transitions. [2019-10-15 03:16:05,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-15 03:16:05,484 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:05,485 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] [2019-10-15 03:16:05,485 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:05,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:05,486 INFO L82 PathProgramCache]: Analyzing trace with hash 617568791, now seen corresponding path program 1 times [2019-10-15 03:16:05,486 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:05,487 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684147147] [2019-10-15 03:16:05,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:05,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:05,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:06,336 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:16:06,336 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684147147] [2019-10-15 03:16:06,337 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:06,337 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-15 03:16:06,337 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434288486] [2019-10-15 03:16:06,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 03:16:06,338 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:06,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 03:16:06,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-15 03:16:06,340 INFO L87 Difference]: Start difference. First operand 480 states and 631 transitions. Second operand 24 states. [2019-10-15 03:16:13,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:13,991 INFO L93 Difference]: Finished difference Result 1157 states and 1423 transitions. [2019-10-15 03:16:13,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-15 03:16:13,992 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 161 [2019-10-15 03:16:13,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:13,999 INFO L225 Difference]: With dead ends: 1157 [2019-10-15 03:16:14,000 INFO L226 Difference]: Without dead ends: 864 [2019-10-15 03:16:14,002 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=255, Invalid=2295, Unknown=0, NotChecked=0, Total=2550 [2019-10-15 03:16:14,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2019-10-15 03:16:14,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 855. [2019-10-15 03:16:14,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 855 states. [2019-10-15 03:16:14,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1055 transitions. [2019-10-15 03:16:14,064 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1055 transitions. Word has length 161 [2019-10-15 03:16:14,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:14,066 INFO L462 AbstractCegarLoop]: Abstraction has 855 states and 1055 transitions. [2019-10-15 03:16:14,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-15 03:16:14,066 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1055 transitions. [2019-10-15 03:16:14,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-15 03:16:14,071 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:14,071 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] [2019-10-15 03:16:14,072 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:14,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:14,072 INFO L82 PathProgramCache]: Analyzing trace with hash -198917089, now seen corresponding path program 1 times [2019-10-15 03:16:14,072 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:14,072 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106363373] [2019-10-15 03:16:14,073 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:14,073 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:14,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:14,673 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 03:16:14,673 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106363373] [2019-10-15 03:16:14,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793730702] [2019-10-15 03:16:14,674 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 [2019-10-15 03:16:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:15,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 2833 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:16:15,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:16:15,385 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:15,386 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:16:15,703 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:15,704 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1121590467] [2019-10-15 03:16:15,749 INFO L162 IcfgInterpreter]: Started Sifa with 152 locations of interest [2019-10-15 03:16:15,749 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:16:15,758 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:16:15,773 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:16:15,774 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs