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_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:11:12,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:11:12,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:11:12,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:11:12,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:11:12,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:11:12,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:11:12,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:11:12,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:11:12,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:11:12,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:11:12,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:11:12,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:11:12,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:11:12,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:11:12,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:11:12,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:11:12,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:11:12,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:11:12,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:11:12,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:11:12,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:11:12,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:11:12,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:11:12,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:11:12,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:11:12,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:11:12,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:11:12,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:11:12,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:11:12,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:11:12,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:11:12,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:11:12,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:11:12,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:11:12,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:11:12,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:11:12,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:11:12,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:11:12,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:11:12,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:11:12,834 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 23:11:12,848 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:11:12,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:11:12,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:11:12,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:11:12,850 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:11:12,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:11:12,850 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:11:12,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:11:12,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:11:12,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:11:12,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:11:12,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:11:12,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:11:12,851 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:11:12,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:11:12,852 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:11:12,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:11:12,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:11:12,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:11:12,853 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:11:12,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:11:12,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:11:12,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:11:12,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:11:12,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:11:12,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:11:12,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:11:12,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:11:12,855 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 23:11:13,138 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:11:13,155 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:11:13,160 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:11:13,161 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:11:13,162 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:11:13,162 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product22.cil.c [2019-10-13 23:11:13,238 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ec538ff7/19b124b23ac046ca8c0e1f7f3dcc39f7/FLAG9773419f3 [2019-10-13 23:11:13,863 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:11:13,864 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product22.cil.c [2019-10-13 23:11:13,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ec538ff7/19b124b23ac046ca8c0e1f7f3dcc39f7/FLAG9773419f3 [2019-10-13 23:11:14,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ec538ff7/19b124b23ac046ca8c0e1f7f3dcc39f7 [2019-10-13 23:11:14,072 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:11:14,074 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:11:14,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:14,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:11:14,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:11:14,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:14" (1/1) ... [2019-10-13 23:11:14,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b6f7d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:14, skipping insertion in model container [2019-10-13 23:11:14,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:14" (1/1) ... [2019-10-13 23:11:14,091 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:11:14,181 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:11:14,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:14,966 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:11:15,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:15,261 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:11:15,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:15 WrapperNode [2019-10-13 23:11:15,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:15,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:11:15,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:11:15,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:11:15,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:15" (1/1) ... [2019-10-13 23:11:15,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:15" (1/1) ... [2019-10-13 23:11:15,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:15" (1/1) ... [2019-10-13 23:11:15,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:15" (1/1) ... [2019-10-13 23:11:15,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:15" (1/1) ... [2019-10-13 23:11:15,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:15" (1/1) ... [2019-10-13 23:11:15,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:15" (1/1) ... [2019-10-13 23:11:15,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:11:15,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:11:15,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:11:15,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:11:15,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:15" (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 23:11:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:11:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:11:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:15,648 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:11:15,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:11:15,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:11:15,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:11:15,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:11:15,652 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:11:15,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:11:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:11:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:11:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:11:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:11:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:11:15,655 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:11:15,659 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:11:15,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:11:15,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:11:15,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:11:15,660 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:11:15,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:11:15,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:11:15,662 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:11:15,662 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:11:15,662 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:11:15,662 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:11:15,663 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:11:15,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:15,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:15,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:15,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:11:15,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:11:15,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:11:15,667 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:11:15,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:15,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:15,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:11:15,668 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:11:15,668 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:11:15,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:11:15,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:11:15,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:11:15,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:11:15,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:11:15,670 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:11:15,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:11:15,670 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:11:15,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:11:15,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:11:15,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:11:15,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:11:15,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:11:15,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:11:15,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:11:15,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:11:15,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:11:15,673 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:11:15,674 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:11:15,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:11:15,675 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:11:15,675 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:11:15,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:11:15,675 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:11:15,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:11:15,676 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:11:15,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:11:15,676 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:11:15,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:11:15,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:11:15,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:15,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:11:15,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:15,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:11:15,678 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:11:15,678 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:11:15,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:11:15,678 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:11:15,679 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:11:15,679 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:11:15,679 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:11:15,680 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:11:15,680 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:11:15,680 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:11:15,680 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:11:15,680 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:11:15,680 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:11:15,681 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:11:15,682 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:11:15,682 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:11:15,682 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:11:15,682 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:11:15,683 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:11:15,683 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:11:15,683 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-13 23:11:15,683 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:11:15,684 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:11:15,684 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:11:15,684 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:11:15,684 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:11:15,685 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:11:15,685 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:11:15,685 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:11:15,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:11:15,685 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:11:15,686 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:11:15,686 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:11:15,686 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:11:15,686 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:11:15,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:11:15,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:11:15,687 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:11:15,687 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:11:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:11:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:11:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:11:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:11:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:11:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:11:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:11:15,690 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:11:15,690 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:11:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:11:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:11:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:11:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:11:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:11:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:11:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:11:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:11:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:11:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:11:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:11:15,695 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:11:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:11:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:11:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:11:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:11:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:11:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:11:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:11:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:11:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:11:15,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:15,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:11:15,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:11:15,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:11:15,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:11:15,713 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:15,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:11:15,714 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:15,714 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:15,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:11:15,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:11:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:11:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:11:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:11:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:11:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:11:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:11:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:11:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:11:15,717 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:11:15,718 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:15,718 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:15,718 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:11:15,718 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:11:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:11:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:11:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:11:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:11:15,719 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:11:15,720 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:11:15,720 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:11:15,720 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:11:15,720 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:11:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:11:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:11:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:11:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:11:15,721 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:11:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:11:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:11:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:11:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:11:15,722 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:11:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:11:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:11:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:11:15,723 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:11:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:11:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:11:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:11:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:11:15,724 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:11:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:11:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:11:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:11:15,725 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:11:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:11:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:11:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:11:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:11:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:11:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:11:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:11:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:11:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:11:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:11:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:11:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:11:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:11:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:11:15,729 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:11:15,729 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:11:15,729 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:11:15,729 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:11:15,729 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:11:15,730 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:11:15,730 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:15,730 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:15,730 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:11:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:11:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:11:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:11:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:11:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:11:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:11:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:11:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:11:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:11:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:11:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-13 23:11:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:11:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:11:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:11:15,734 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:11:15,734 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:11:15,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:11:15,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:11:15,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:11:20,722 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:11:20,723 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:11:20,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:20 BoogieIcfgContainer [2019-10-13 23:11:20,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:11:20,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:11:20,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:11:20,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:11:20,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:11:14" (1/3) ... [2019-10-13 23:11:20,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac678be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:20, skipping insertion in model container [2019-10-13 23:11:20,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:15" (2/3) ... [2019-10-13 23:11:20,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac678be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:20, skipping insertion in model container [2019-10-13 23:11:20,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:20" (3/3) ... [2019-10-13 23:11:20,734 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product22.cil.c [2019-10-13 23:11:20,745 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:11:20,757 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:11:20,769 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:11:20,811 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:11:20,812 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:11:20,812 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:11:20,813 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:11:20,818 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:11:20,818 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:11:20,818 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:11:20,818 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:11:20,855 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states. [2019-10-13 23:11:20,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-13 23:11:20,888 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:20,891 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:20,895 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:20,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:20,903 INFO L82 PathProgramCache]: Analyzing trace with hash -763452686, now seen corresponding path program 1 times [2019-10-13 23:11:20,917 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:20,917 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524201486] [2019-10-13 23:11:20,918 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:20,918 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:20,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:21,613 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:21,614 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524201486] [2019-10-13 23:11:21,615 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:21,615 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:11:21,616 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694270917] [2019-10-13 23:11:21,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:11:21,622 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:21,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:11:21,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:11:21,640 INFO L87 Difference]: Start difference. First operand 379 states. Second operand 2 states. [2019-10-13 23:11:21,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:21,705 INFO L93 Difference]: Finished difference Result 559 states and 663 transitions. [2019-10-13 23:11:21,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:11:21,707 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-10-13 23:11:21,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:21,727 INFO L225 Difference]: With dead ends: 559 [2019-10-13 23:11:21,727 INFO L226 Difference]: Without dead ends: 358 [2019-10-13 23:11:21,733 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 23:11:21,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2019-10-13 23:11:21,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2019-10-13 23:11:21,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2019-10-13 23:11:21,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 423 transitions. [2019-10-13 23:11:21,819 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 423 transitions. Word has length 136 [2019-10-13 23:11:21,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:21,822 INFO L462 AbstractCegarLoop]: Abstraction has 358 states and 423 transitions. [2019-10-13 23:11:21,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:11:21,822 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 423 transitions. [2019-10-13 23:11:21,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-13 23:11:21,827 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:21,828 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:21,828 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:21,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:21,829 INFO L82 PathProgramCache]: Analyzing trace with hash -92199932, now seen corresponding path program 1 times [2019-10-13 23:11:21,829 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:21,829 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581863244] [2019-10-13 23:11:21,830 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:21,830 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:21,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:22,042 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581863244] [2019-10-13 23:11:22,042 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:22,042 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:22,043 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327299752] [2019-10-13 23:11:22,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:22,049 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:22,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:22,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:22,049 INFO L87 Difference]: Start difference. First operand 358 states and 423 transitions. Second operand 3 states. [2019-10-13 23:11:22,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:22,131 INFO L93 Difference]: Finished difference Result 544 states and 634 transitions. [2019-10-13 23:11:22,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:22,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-10-13 23:11:22,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:22,145 INFO L225 Difference]: With dead ends: 544 [2019-10-13 23:11:22,145 INFO L226 Difference]: Without dead ends: 360 [2019-10-13 23:11:22,154 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 23:11:22,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2019-10-13 23:11:22,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2019-10-13 23:11:22,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2019-10-13 23:11:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 425 transitions. [2019-10-13 23:11:22,214 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 425 transitions. Word has length 137 [2019-10-13 23:11:22,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:22,215 INFO L462 AbstractCegarLoop]: Abstraction has 360 states and 425 transitions. [2019-10-13 23:11:22,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:22,215 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 425 transitions. [2019-10-13 23:11:22,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-13 23:11:22,219 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:22,219 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] [2019-10-13 23:11:22,219 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:22,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:22,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1277255045, now seen corresponding path program 1 times [2019-10-13 23:11:22,220 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:22,220 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636617727] [2019-10-13 23:11:22,221 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:22,221 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:22,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:22,481 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:22,481 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636617727] [2019-10-13 23:11:22,481 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:22,482 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:22,482 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523417953] [2019-10-13 23:11:22,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:22,483 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:22,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:22,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:22,484 INFO L87 Difference]: Start difference. First operand 360 states and 425 transitions. Second operand 3 states. [2019-10-13 23:11:22,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:22,518 INFO L93 Difference]: Finished difference Result 704 states and 860 transitions. [2019-10-13 23:11:22,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:22,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-13 23:11:22,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:22,526 INFO L225 Difference]: With dead ends: 704 [2019-10-13 23:11:22,526 INFO L226 Difference]: Without dead ends: 402 [2019-10-13 23:11:22,529 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 23:11:22,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2019-10-13 23:11:22,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 401. [2019-10-13 23:11:22,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-10-13 23:11:22,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 496 transitions. [2019-10-13 23:11:22,568 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 496 transitions. Word has length 149 [2019-10-13 23:11:22,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:22,568 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 496 transitions. [2019-10-13 23:11:22,569 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:22,569 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 496 transitions. [2019-10-13 23:11:22,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 23:11:22,576 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:22,576 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] [2019-10-13 23:11:22,577 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:22,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:22,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1409415301, now seen corresponding path program 1 times [2019-10-13 23:11:22,579 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:22,579 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060924797] [2019-10-13 23:11:22,579 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:22,579 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:22,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:23,330 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 23:11:23,331 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060924797] [2019-10-13 23:11:23,331 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:23,331 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-13 23:11:23,332 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516288870] [2019-10-13 23:11:23,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-13 23:11:23,333 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:23,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-13 23:11:23,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2019-10-13 23:11:23,335 INFO L87 Difference]: Start difference. First operand 401 states and 496 transitions. Second operand 22 states. [2019-10-13 23:11:30,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:30,111 INFO L93 Difference]: Finished difference Result 1034 states and 1231 transitions. [2019-10-13 23:11:30,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 23:11:30,112 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 150 [2019-10-13 23:11:30,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:30,124 INFO L225 Difference]: With dead ends: 1034 [2019-10-13 23:11:30,124 INFO L226 Difference]: Without dead ends: 756 [2019-10-13 23:11:30,129 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=233, Invalid=1929, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 23:11:30,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2019-10-13 23:11:30,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 747. [2019-10-13 23:11:30,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2019-10-13 23:11:30,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 886 transitions. [2019-10-13 23:11:30,177 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 886 transitions. Word has length 150 [2019-10-13 23:11:30,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:30,178 INFO L462 AbstractCegarLoop]: Abstraction has 747 states and 886 transitions. [2019-10-13 23:11:30,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-13 23:11:30,178 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 886 transitions. [2019-10-13 23:11:30,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 23:11:30,181 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:30,182 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, 1] [2019-10-13 23:11:30,182 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:30,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:30,182 INFO L82 PathProgramCache]: Analyzing trace with hash 117140764, now seen corresponding path program 1 times [2019-10-13 23:11:30,183 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:30,183 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266839597] [2019-10-13 23:11:30,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:30,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:30,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:30,918 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:11:30,919 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266839597] [2019-10-13 23:11:30,919 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165265547] [2019-10-13 23:11:30,920 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 23:11:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:31,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 2578 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:11:31,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:11:31,674 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:31,674 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:11:31,927 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:31,927 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1439145647] [2019-10-13 23:11:31,977 INFO L162 IcfgInterpreter]: Started Sifa with 143 locations of interest [2019-10-13 23:11:31,978 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:11:31,985 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:11:31,994 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:11:31,995 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs