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_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:02:52,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:02:52,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:02:52,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:02:52,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:02:52,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:02:52,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:02:52,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:02:52,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:02:52,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:02:52,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:02:52,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:02:52,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:02:52,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:02:52,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:02:52,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:02:52,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:02:52,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:02:52,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:02:52,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:02:52,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:02:52,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:02:52,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:02:52,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:02:52,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:02:52,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:02:52,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:02:52,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:02:52,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:02:52,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:02:52,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:02:52,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:02:52,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:02:52,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:02:52,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:02:52,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:02:52,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:02:52,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:02:52,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:02:52,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:02:52,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:02:52,691 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 [2019-10-07 15:02:52,704 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:02:52,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:02:52,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:02:52,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:02:52,710 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:02:52,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:02:52,710 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:02:52,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:02:52,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:02:52,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:02:52,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:02:52,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:02:52,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:02:52,711 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:02:52,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:02:52,712 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:02:52,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:02:52,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:02:52,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:02:52,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:02:52,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:02:52,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:02:52,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:02:52,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:02:52,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:02:52,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:02:52,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:02:52,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:02:52,716 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 [2019-10-07 15:02:53,015 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:02:53,031 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:02:53,034 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:02:53,036 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:02:53,036 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:02:53,037 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c [2019-10-07 15:02:53,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa880fbe3/219b3f94e6534dc6b4cbea4dc280d450/FLAGe095a92da [2019-10-07 15:02:53,835 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:02:53,836 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c [2019-10-07 15:02:53,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa880fbe3/219b3f94e6534dc6b4cbea4dc280d450/FLAGe095a92da [2019-10-07 15:02:54,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa880fbe3/219b3f94e6534dc6b4cbea4dc280d450 [2019-10-07 15:02:54,040 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:02:54,041 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:02:54,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:02:54,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:02:54,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:02:54,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:02:54" (1/1) ... [2019-10-07 15:02:54,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eba87fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:54, skipping insertion in model container [2019-10-07 15:02:54,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:02:54" (1/1) ... [2019-10-07 15:02:54,061 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:02:54,134 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:02:54,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:02:54,929 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:02:55,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:02:55,167 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:02:55,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:55 WrapperNode [2019-10-07 15:02:55,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:02:55,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:02:55,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:02:55,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:02:55,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:55" (1/1) ... [2019-10-07 15:02:55,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:55" (1/1) ... [2019-10-07 15:02:55,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:55" (1/1) ... [2019-10-07 15:02:55,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:55" (1/1) ... [2019-10-07 15:02:55,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:55" (1/1) ... [2019-10-07 15:02:55,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:55" (1/1) ... [2019-10-07 15:02:55,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:55" (1/1) ... [2019-10-07 15:02:55,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:02:55,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:02:55,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:02:55,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:02:55,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:55" (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 [2019-10-07 15:02:55,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:02:55,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:02:55,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:02:55,444 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:02:55,445 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:02:55,446 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:02:55,446 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:02:55,446 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:02:55,447 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:02:55,447 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:02:55,447 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:02:55,448 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:02:55,448 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:02:55,448 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:02:55,448 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:02:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:02:55,451 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:02:55,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:02:55,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:02:55,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:02:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:02:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:02:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:02:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:02:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:02:55,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:02:55,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:02:55,454 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:02:55,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:02:55,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:02:55,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:02:55,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:02:55,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:02:55,455 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:02:55,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:02:55,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:02:55,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:02:55,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:02:55,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:02:55,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:02:55,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:02:55,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:02:55,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:02:55,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:02:55,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:02:55,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:02:55,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:02:55,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:02:55,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:02:55,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:02:55,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:02:55,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:02:55,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:02:55,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:02:55,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:02:55,459 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:02:55,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:02:55,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:02:55,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:02:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:02:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:02:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:02:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:02:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:02:55,461 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:02:55,461 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 15:02:55,461 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:02:55,461 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:02:55,461 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:02:55,462 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:02:55,462 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:02:55,462 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:02:55,462 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:02:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:02:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:02:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:02:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:02:55,465 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:02:55,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:02:55,465 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:02:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:02:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 15:02:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:02:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:02:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:02:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:02:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:02:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:02:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:02:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:02:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:02:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:02:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:02:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:02:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:02:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:02:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:02:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:02:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:02:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:02:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:02:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:02:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:02:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:02:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:02:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:02:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:02:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:02:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:02:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:02:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 15:02:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:02:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 15:02:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 15:02:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:02:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:02:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:02:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:02:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:02:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:02:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:02:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:02:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:02:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:02:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:02:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:02:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:02:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 15:02:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:02:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:02:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:02:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:02:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:02:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:02:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:02:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:02:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:02:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:02:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:02:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:02:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:02:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:02:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:02:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:02:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:02:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:02:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:02:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:02:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:02:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:02:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:02:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:02:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:02:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:02:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:02:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:02:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:02:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:02:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:02:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:02:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:02:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:02:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:02:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:02:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:02:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:02:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:02:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:02:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:02:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:02:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:02:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:02:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:02:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:02:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:02:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:02:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:02:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:02:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:02:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:02:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:02:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:02:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:02:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 15:02:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:02:55,504 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:02:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:02:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:02:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:02:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 15:02:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:02:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:02:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:02:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:02:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:02:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:02:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:02:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:02:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:02:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:02:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:02:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:02:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:02:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:02:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:02:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:02:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:02:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:02:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:02:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:02:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:02:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:02:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 15:02:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 15:02:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:02:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:02:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:02:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:03:00,483 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:03:00,483 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:03:00,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:03:00 BoogieIcfgContainer [2019-10-07 15:03:00,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:03:00,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:03:00,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:03:00,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:03:00,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:02:54" (1/3) ... [2019-10-07 15:03:00,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6c71c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:03:00, skipping insertion in model container [2019-10-07 15:03:00,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:02:55" (2/3) ... [2019-10-07 15:03:00,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6c71c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:03:00, skipping insertion in model container [2019-10-07 15:03:00,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:03:00" (3/3) ... [2019-10-07 15:03:00,493 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product32.cil.c [2019-10-07 15:03:00,503 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:03:00,513 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:03:00,525 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:03:00,556 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:03:00,556 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:03:00,556 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:03:00,556 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:03:00,556 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:03:00,556 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:03:00,557 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:03:00,557 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:03:00,586 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states. [2019-10-07 15:03:00,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-07 15:03:00,604 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:00,606 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:00,608 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:00,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:00,615 INFO L82 PathProgramCache]: Analyzing trace with hash 2047346776, now seen corresponding path program 1 times [2019-10-07 15:03:00,624 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:00,624 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:00,624 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:00,625 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:00,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:01,198 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:01,199 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:01,200 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:01,200 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:03:01,205 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:03:01,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:03:01,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:03:01,223 INFO L87 Difference]: Start difference. First operand 451 states. Second operand 2 states. [2019-10-07 15:03:01,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:01,342 INFO L93 Difference]: Finished difference Result 642 states and 769 transitions. [2019-10-07 15:03:01,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:03:01,344 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-07 15:03:01,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:01,372 INFO L225 Difference]: With dead ends: 642 [2019-10-07 15:03:01,373 INFO L226 Difference]: Without dead ends: 403 [2019-10-07 15:03:01,379 INFO L606 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 [2019-10-07 15:03:01,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-10-07 15:03:01,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2019-10-07 15:03:01,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-10-07 15:03:01,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 478 transitions. [2019-10-07 15:03:01,466 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 478 transitions. Word has length 154 [2019-10-07 15:03:01,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:01,469 INFO L462 AbstractCegarLoop]: Abstraction has 403 states and 478 transitions. [2019-10-07 15:03:01,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:03:01,469 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 478 transitions. [2019-10-07 15:03:01,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-07 15:03:01,477 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:01,477 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:01,478 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:01,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:01,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1986785659, now seen corresponding path program 1 times [2019-10-07 15:03:01,479 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:01,479 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:01,479 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:01,479 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:01,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:01,812 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:01,812 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:01,813 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:01,815 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:01,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:01,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:01,816 INFO L87 Difference]: Start difference. First operand 403 states and 478 transitions. Second operand 3 states. [2019-10-07 15:03:01,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:01,894 INFO L93 Difference]: Finished difference Result 627 states and 736 transitions. [2019-10-07 15:03:01,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:01,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-07 15:03:01,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:01,903 INFO L225 Difference]: With dead ends: 627 [2019-10-07 15:03:01,903 INFO L226 Difference]: Without dead ends: 405 [2019-10-07 15:03:01,907 INFO L606 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 [2019-10-07 15:03:01,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2019-10-07 15:03:01,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2019-10-07 15:03:01,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-07 15:03:01,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 480 transitions. [2019-10-07 15:03:01,941 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 480 transitions. Word has length 155 [2019-10-07 15:03:01,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:01,941 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 480 transitions. [2019-10-07 15:03:01,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:01,942 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 480 transitions. [2019-10-07 15:03:01,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-07 15:03:01,945 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:01,945 INFO L385 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] [2019-10-07 15:03:01,946 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:01,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:01,946 INFO L82 PathProgramCache]: Analyzing trace with hash -652679702, now seen corresponding path program 1 times [2019-10-07 15:03:01,946 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:01,946 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:01,947 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:01,947 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:01,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:02,121 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:02,122 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:02,122 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:02,122 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:02,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:02,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:02,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:02,124 INFO L87 Difference]: Start difference. First operand 405 states and 480 transitions. Second operand 3 states. [2019-10-07 15:03:02,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:02,163 INFO L93 Difference]: Finished difference Result 794 states and 970 transitions. [2019-10-07 15:03:02,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:02,164 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2019-10-07 15:03:02,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:02,168 INFO L225 Difference]: With dead ends: 794 [2019-10-07 15:03:02,168 INFO L226 Difference]: Without dead ends: 447 [2019-10-07 15:03:02,170 INFO L606 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 [2019-10-07 15:03:02,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-10-07 15:03:02,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2019-10-07 15:03:02,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2019-10-07 15:03:02,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 551 transitions. [2019-10-07 15:03:02,202 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 551 transitions. Word has length 164 [2019-10-07 15:03:02,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:02,203 INFO L462 AbstractCegarLoop]: Abstraction has 446 states and 551 transitions. [2019-10-07 15:03:02,203 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:02,203 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 551 transitions. [2019-10-07 15:03:02,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-07 15:03:02,207 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:02,207 INFO L385 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] [2019-10-07 15:03:02,208 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:02,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:02,208 INFO L82 PathProgramCache]: Analyzing trace with hash -586369187, now seen corresponding path program 1 times [2019-10-07 15:03:02,208 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:02,209 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:02,209 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:02,209 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:02,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:02,462 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:02,462 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:02,463 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:02,463 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:02,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:02,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:02,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:02,466 INFO L87 Difference]: Start difference. First operand 446 states and 551 transitions. Second operand 3 states. [2019-10-07 15:03:02,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:02,522 INFO L93 Difference]: Finished difference Result 914 states and 1178 transitions. [2019-10-07 15:03:02,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:02,523 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-07 15:03:02,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:02,533 INFO L225 Difference]: With dead ends: 914 [2019-10-07 15:03:02,533 INFO L226 Difference]: Without dead ends: 526 [2019-10-07 15:03:02,536 INFO L606 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 [2019-10-07 15:03:02,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2019-10-07 15:03:02,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 525. [2019-10-07 15:03:02,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2019-10-07 15:03:02,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 687 transitions. [2019-10-07 15:03:02,591 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 687 transitions. Word has length 165 [2019-10-07 15:03:02,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:02,592 INFO L462 AbstractCegarLoop]: Abstraction has 525 states and 687 transitions. [2019-10-07 15:03:02,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:02,592 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 687 transitions. [2019-10-07 15:03:02,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-07 15:03:02,600 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:02,601 INFO L385 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, 1] [2019-10-07 15:03:02,601 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:02,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:02,602 INFO L82 PathProgramCache]: Analyzing trace with hash 375382896, now seen corresponding path program 1 times [2019-10-07 15:03:02,602 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:02,602 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:02,603 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:02,603 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:02,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:03,467 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:03:03,467 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:03,467 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:03,468 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-07 15:03:03,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-07 15:03:03,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-07 15:03:03,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2019-10-07 15:03:03,469 INFO L87 Difference]: Start difference. First operand 525 states and 687 transitions. Second operand 26 states. [2019-10-07 15:03:14,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:14,167 INFO L93 Difference]: Finished difference Result 1329 states and 1679 transitions. [2019-10-07 15:03:14,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-07 15:03:14,168 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 168 [2019-10-07 15:03:14,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:14,179 INFO L225 Difference]: With dead ends: 1329 [2019-10-07 15:03:14,179 INFO L226 Difference]: Without dead ends: 1111 [2019-10-07 15:03:14,183 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=294, Invalid=2898, Unknown=0, NotChecked=0, Total=3192 [2019-10-07 15:03:14,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2019-10-07 15:03:14,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1098. [2019-10-07 15:03:14,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1098 states. [2019-10-07 15:03:14,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1375 transitions. [2019-10-07 15:03:14,261 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1375 transitions. Word has length 168 [2019-10-07 15:03:14,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:14,263 INFO L462 AbstractCegarLoop]: Abstraction has 1098 states and 1375 transitions. [2019-10-07 15:03:14,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-07 15:03:14,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1375 transitions. [2019-10-07 15:03:14,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 15:03:14,267 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:14,267 INFO L385 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:14,268 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:14,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:14,269 INFO L82 PathProgramCache]: Analyzing trace with hash -226636973, now seen corresponding path program 1 times [2019-10-07 15:03:14,269 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:14,269 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:14,269 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:14,270 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:14,823 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:03:14,823 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:14,824 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:14,824 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-07 15:03:14,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-07 15:03:14,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-07 15:03:14,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-10-07 15:03:14,826 INFO L87 Difference]: Start difference. First operand 1098 states and 1375 transitions. Second operand 16 states. [2019-10-07 15:03:19,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:19,758 INFO L93 Difference]: Finished difference Result 2466 states and 3062 transitions. [2019-10-07 15:03:19,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-07 15:03:19,760 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 174 [2019-10-07 15:03:19,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:19,774 INFO L225 Difference]: With dead ends: 2466 [2019-10-07 15:03:19,775 INFO L226 Difference]: Without dead ends: 2059 [2019-10-07 15:03:19,778 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2019-10-07 15:03:19,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2019-10-07 15:03:19,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 2006. [2019-10-07 15:03:19,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2006 states. [2019-10-07 15:03:19,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2487 transitions. [2019-10-07 15:03:19,971 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2487 transitions. Word has length 174 [2019-10-07 15:03:19,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:19,972 INFO L462 AbstractCegarLoop]: Abstraction has 2006 states and 2487 transitions. [2019-10-07 15:03:19,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-07 15:03:19,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2487 transitions. [2019-10-07 15:03:19,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-07 15:03:19,977 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:19,977 INFO L385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:19,978 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:19,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:19,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1042031934, now seen corresponding path program 1 times [2019-10-07 15:03:19,978 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:19,979 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:19,979 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:19,979 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:19,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:20,131 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:20,138 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:20,138 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:20,139 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:20,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:20,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:20,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:20,142 INFO L87 Difference]: Start difference. First operand 2006 states and 2487 transitions. Second operand 3 states. [2019-10-07 15:03:20,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:20,266 INFO L93 Difference]: Finished difference Result 4167 states and 5283 transitions. [2019-10-07 15:03:20,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:20,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-07 15:03:20,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:20,283 INFO L225 Difference]: With dead ends: 4167 [2019-10-07 15:03:20,284 INFO L226 Difference]: Without dead ends: 2219 [2019-10-07 15:03:20,294 INFO L606 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 [2019-10-07 15:03:20,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2019-10-07 15:03:20,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2217. [2019-10-07 15:03:20,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2217 states. [2019-10-07 15:03:20,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2217 states to 2217 states and 2851 transitions. [2019-10-07 15:03:20,456 INFO L78 Accepts]: Start accepts. Automaton has 2217 states and 2851 transitions. Word has length 190 [2019-10-07 15:03:20,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:20,457 INFO L462 AbstractCegarLoop]: Abstraction has 2217 states and 2851 transitions. [2019-10-07 15:03:20,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:20,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2217 states and 2851 transitions. [2019-10-07 15:03:20,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-07 15:03:20,465 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:20,465 INFO L385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:20,465 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:20,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:20,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1904967631, now seen corresponding path program 1 times [2019-10-07 15:03:20,466 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:20,466 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:20,466 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:20,467 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:20,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:20,953 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 15:03:20,954 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:20,954 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:20,954 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-07 15:03:20,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-07 15:03:20,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-07 15:03:20,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2019-10-07 15:03:20,956 INFO L87 Difference]: Start difference. First operand 2217 states and 2851 transitions. Second operand 17 states. [2019-10-07 15:03:28,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:28,280 INFO L93 Difference]: Finished difference Result 4628 states and 6119 transitions. [2019-10-07 15:03:28,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-07 15:03:28,280 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 191 [2019-10-07 15:03:28,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:28,307 INFO L225 Difference]: With dead ends: 4628 [2019-10-07 15:03:28,307 INFO L226 Difference]: Without dead ends: 3432 [2019-10-07 15:03:28,315 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 10 SyntacticMatches, 21 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=277, Invalid=1529, Unknown=0, NotChecked=0, Total=1806 [2019-10-07 15:03:28,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2019-10-07 15:03:28,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 2631. [2019-10-07 15:03:28,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2631 states. [2019-10-07 15:03:28,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3568 transitions. [2019-10-07 15:03:28,529 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3568 transitions. Word has length 191 [2019-10-07 15:03:28,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:28,530 INFO L462 AbstractCegarLoop]: Abstraction has 2631 states and 3568 transitions. [2019-10-07 15:03:28,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-07 15:03:28,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3568 transitions. [2019-10-07 15:03:28,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-07 15:03:28,540 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:28,541 INFO L385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:28,541 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:28,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:28,542 INFO L82 PathProgramCache]: Analyzing trace with hash 471230789, now seen corresponding path program 1 times [2019-10-07 15:03:28,542 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:28,542 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:28,542 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:28,542 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:28,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:28,794 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:28,794 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:28,795 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:28,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:28,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:28,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:28,797 INFO L87 Difference]: Start difference. First operand 2631 states and 3568 transitions. Second operand 3 states. [2019-10-07 15:03:28,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:28,917 INFO L93 Difference]: Finished difference Result 5493 states and 7604 transitions. [2019-10-07 15:03:28,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:28,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-07 15:03:28,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:28,937 INFO L225 Difference]: With dead ends: 5493 [2019-10-07 15:03:28,938 INFO L226 Difference]: Without dead ends: 2924 [2019-10-07 15:03:28,948 INFO L606 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 [2019-10-07 15:03:28,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2019-10-07 15:03:29,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2923. [2019-10-07 15:03:29,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2923 states. [2019-10-07 15:03:29,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 4080 transitions. [2019-10-07 15:03:29,189 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 4080 transitions. Word has length 192 [2019-10-07 15:03:29,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:29,189 INFO L462 AbstractCegarLoop]: Abstraction has 2923 states and 4080 transitions. [2019-10-07 15:03:29,190 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:29,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 4080 transitions. [2019-10-07 15:03:29,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-07 15:03:29,204 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:29,204 INFO L385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:29,204 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:29,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:29,205 INFO L82 PathProgramCache]: Analyzing trace with hash 384765503, now seen corresponding path program 1 times [2019-10-07 15:03:29,205 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:29,205 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:29,205 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:29,206 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:29,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:29,505 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:29,505 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:29,505 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:29,505 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:03:29,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:03:29,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:03:29,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:03:29,507 INFO L87 Difference]: Start difference. First operand 2923 states and 4080 transitions. Second operand 12 states. [2019-10-07 15:03:34,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:34,753 INFO L93 Difference]: Finished difference Result 5465 states and 7571 transitions. [2019-10-07 15:03:34,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:03:34,753 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 194 [2019-10-07 15:03:34,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:34,774 INFO L225 Difference]: With dead ends: 5465 [2019-10-07 15:03:34,775 INFO L226 Difference]: Without dead ends: 3567 [2019-10-07 15:03:34,783 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:03:34,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3567 states. [2019-10-07 15:03:34,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3567 to 2766. [2019-10-07 15:03:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2766 states. [2019-10-07 15:03:34,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3793 transitions. [2019-10-07 15:03:34,980 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3793 transitions. Word has length 194 [2019-10-07 15:03:34,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:34,981 INFO L462 AbstractCegarLoop]: Abstraction has 2766 states and 3793 transitions. [2019-10-07 15:03:34,981 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:03:34,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3793 transitions. [2019-10-07 15:03:34,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-07 15:03:34,991 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:34,992 INFO L385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:34,992 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:34,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:34,993 INFO L82 PathProgramCache]: Analyzing trace with hash 142579995, now seen corresponding path program 1 times [2019-10-07 15:03:34,993 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:34,993 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:34,993 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:34,993 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:34,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:35,627 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 15:03:35,628 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:35,628 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:03:35,628 INFO L95 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 [2019-10-07 15:03:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:36,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 3293 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:03:36,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:03:36,398 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:36,399 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:03:36,806 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:36,807 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:03:36,835 INFO L162 IcfgInterpreter]: Started Sifa with 180 locations of interest [2019-10-07 15:03:36,835 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:03:36,842 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:03:36,850 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:03:36,850 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:05:14,264 WARN L191 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 734 [2019-10-07 15:05:19,237 WARN L191 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 368 DAG size of output: 299 [2019-10-07 15:05:19,881 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 785 [2019-10-07 15:05:20,313 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 785 [2019-10-07 15:05:20,620 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 785 [2019-10-07 15:05:20,791 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 463 [2019-10-07 15:05:21,549 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:05:22,302 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:05:23,030 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:05:23,182 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 463 [2019-10-07 15:05:23,950 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:05:25,327 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1094 DAG size of output: 1092 [2019-10-07 15:05:26,081 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:05:26,231 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 463 [2019-10-07 15:05:26,924 WARN L191 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:05:27,650 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:05:28,320 WARN L191 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:05:28,508 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 463 [2019-10-07 15:05:29,175 WARN L191 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:05:29,201 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 586 for LOIs [2019-10-07 15:05:29,559 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 696 [2019-10-07 15:05:29,678 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 696 [2019-10-07 15:05:29,806 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 463 [2019-10-07 15:05:30,374 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1003 [2019-10-07 15:05:30,376 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1149 for LOIs [2019-10-07 15:05:31,050 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:31,784 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:32,058 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:33,215 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:05:33,905 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:34,580 WARN L191 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:35,188 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:36,333 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:05:37,159 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:37,834 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:38,093 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:39,695 WARN L191 SmtUtils]: Spent 1.60 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:05:40,803 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1358 DAG size of output: 1149 [2019-10-07 15:05:41,490 WARN L191 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:41,769 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:42,897 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:05:43,598 WARN L191 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:44,275 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:44,633 WARN L191 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:45,739 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:05:46,395 WARN L191 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:47,067 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:47,343 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:48,482 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:05:49,138 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:49,816 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:50,074 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:51,200 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:05:51,861 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:52,556 WARN L191 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:52,816 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:53,936 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:05:54,596 WARN L191 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:55,254 WARN L191 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:55,524 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:56,618 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:05:57,286 WARN L191 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:57,965 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:05:58,222 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:59,347 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:00,008 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:06:00,693 WARN L191 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:06:00,952 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:02,081 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:02,742 WARN L191 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:06:03,425 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:06:03,682 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:04,797 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:05,448 WARN L191 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:06:06,135 WARN L191 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 1149 [2019-10-07 15:06:06,410 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:07,493 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:08,623 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:09,747 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:10,016 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:11,145 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:13,203 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 1358 DAG size of output: 1356 [2019-10-07 15:06:14,313 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:14,588 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:15,681 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:16,818 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:17,903 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:18,170 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:19,278 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:20,416 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:06:21,529 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:06:21,803 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:06:22,896 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:06:24,881 WARN L191 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:06:26,026 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:06:26,315 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:06:27,455 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:06:28,547 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:06:29,677 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:06:29,939 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:06:31,063 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:06:33,105 WARN L191 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:06:34,258 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:06:34,561 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:06:35,673 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:06:36,807 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1367 [2019-10-07 15:06:37,940 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1367 [2019-10-07 15:06:38,213 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:06:39,326 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1367 [2019-10-07 15:06:41,449 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 1358 DAG size of output: 1356 [2019-10-07 15:06:42,615 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:42,956 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:44,080 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:46,132 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 1358 DAG size of output: 1356 [2019-10-07 15:06:47,257 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:47,526 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:48,669 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:49,794 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:50,873 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:51,140 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:52,225 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:54,333 WARN L191 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 1358 DAG size of output: 1356 [2019-10-07 15:06:55,414 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:55,688 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:56,780 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:06:58,821 WARN L191 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 1358 DAG size of output: 1356 [2019-10-07 15:06:59,936 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:07:00,203 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:07:01,279 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:07:02,415 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:07:03,527 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:07:03,786 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:07:04,894 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1356 [2019-10-07 15:07:06,052 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:07:07,143 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:07:07,419 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:07:08,541 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:07:10,415 WARN L191 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 1362 DAG size of output: 1358 [2019-10-07 15:07:11,498 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:07:11,774 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:07:12,865 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:07:14,756 WARN L191 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 1362 DAG size of output: 1358 [2019-10-07 15:07:15,834 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:07:16,111 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:07:17,243 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:07:19,260 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 1367 DAG size of output: 1358 [2019-10-07 15:07:20,369 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1358 [2019-10-07 15:07:20,636 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:07:21,727 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:07:23,672 WARN L191 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 1369 DAG size of output: 1360 [2019-10-07 15:07:24,767 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1360 [2019-10-07 15:07:25,308 WARN L191 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:07:26,386 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1362 [2019-10-07 15:07:26,641 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:07:26,643 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:07:26,649 INFO L168 Benchmark]: Toolchain (without parser) took 272607.52 ms. Allocated memory was 145.8 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 101.1 MB in the beginning and 798.6 MB in the end (delta: -697.5 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2019-10-07 15:07:26,650 INFO L168 Benchmark]: CDTParser took 1.24 ms. Allocated memory is still 145.8 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 15:07:26,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1126.31 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 100.7 MB in the beginning and 133.6 MB in the end (delta: -32.8 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:07:26,651 INFO L168 Benchmark]: Boogie Preprocessor took 191.01 ms. Allocated memory is still 204.5 MB. Free memory was 133.6 MB in the beginning and 124.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:07:26,651 INFO L168 Benchmark]: RCFGBuilder took 5124.47 ms. Allocated memory was 204.5 MB in the beginning and 296.2 MB in the end (delta: 91.8 MB). Free memory was 124.5 MB in the beginning and 229.0 MB in the end (delta: -104.5 MB). Peak memory consumption was 137.2 MB. Max. memory is 7.1 GB. [2019-10-07 15:07:26,652 INFO L168 Benchmark]: TraceAbstraction took 266161.14 ms. Allocated memory was 296.2 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 229.0 MB in the beginning and 798.6 MB in the end (delta: -569.6 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2019-10-07 15:07:26,655 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.24 ms. Allocated memory is still 145.8 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1126.31 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 100.7 MB in the beginning and 133.6 MB in the end (delta: -32.8 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 191.01 ms. Allocated memory is still 204.5 MB. Free memory was 133.6 MB in the beginning and 124.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5124.47 ms. Allocated memory was 204.5 MB in the beginning and 296.2 MB in the end (delta: 91.8 MB). Free memory was 124.5 MB in the beginning and 229.0 MB in the end (delta: -104.5 MB). Peak memory consumption was 137.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 266161.14 ms. Allocated memory was 296.2 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 229.0 MB in the beginning and 798.6 MB in the end (delta: -569.6 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...