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_spec9_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:10:22,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:10:22,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:10:22,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:10:22,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:10:22,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:10:22,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:10:22,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:10:22,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:10:22,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:10:22,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:10:22,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:10:22,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:10:22,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:10:22,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:10:22,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:10:22,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:10:22,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:10:22,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:10:22,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:10:22,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:10:22,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:10:22,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:10:22,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:10:22,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:10:22,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:10:22,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:10:22,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:10:22,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:10:22,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:10:22,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:10:22,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:10:22,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:10:22,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:10:22,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:10:22,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:10:22,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:10:22,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:10:22,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:10:22,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:10:22,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:10:22,456 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 15:10:22,470 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:10:22,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:10:22,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:10:22,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:10:22,472 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:10:22,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:10:22,472 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:10:22,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:10:22,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:10:22,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:10:22,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:10:22,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:10:22,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:10:22,474 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:10:22,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:10:22,474 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:10:22,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:10:22,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:10:22,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:10:22,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:10:22,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:10:22,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:10:22,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:10:22,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:10:22,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:10:22,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:10:22,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:10:22,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:10:22,477 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 15:10:22,739 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:10:22,757 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:10:22,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:10:22,763 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:10:22,763 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:10:22,764 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product15.cil.c [2019-10-07 15:10:22,834 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e499306af/9dd3fdcb912441929f46b5fec2c14f4c/FLAG74238ad19 [2019-10-07 15:10:23,464 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:10:23,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product15.cil.c [2019-10-07 15:10:23,488 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e499306af/9dd3fdcb912441929f46b5fec2c14f4c/FLAG74238ad19 [2019-10-07 15:10:23,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e499306af/9dd3fdcb912441929f46b5fec2c14f4c [2019-10-07 15:10:23,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:10:23,692 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:10:23,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:10:23,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:10:23,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:10:23,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:10:23" (1/1) ... [2019-10-07 15:10:23,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@362dc79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:23, skipping insertion in model container [2019-10-07 15:10:23,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:10:23" (1/1) ... [2019-10-07 15:10:23,708 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:10:23,789 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:10:24,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:10:24,640 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:10:24,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:10:24,918 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:10:24,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:24 WrapperNode [2019-10-07 15:10:24,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:10:24,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:10:24,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:10:24,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:10:24,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:24" (1/1) ... [2019-10-07 15:10:24,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:24" (1/1) ... [2019-10-07 15:10:24,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:24" (1/1) ... [2019-10-07 15:10:24,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:24" (1/1) ... [2019-10-07 15:10:25,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:24" (1/1) ... [2019-10-07 15:10:25,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:24" (1/1) ... [2019-10-07 15:10:25,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:24" (1/1) ... [2019-10-07 15:10:25,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:10:25,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:10:25,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:10:25,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:10:25,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:24" (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 15:10:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:10:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:10:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:10:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:10:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:10:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:10:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:10:25,214 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:10:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:10:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:10:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:10:25,215 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:10:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:10:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:10:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:10:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:10:25,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:10:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:10:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:10:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:10:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:10:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:10:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:10:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:10:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:10:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:10:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:10:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:10:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:10:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:10:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:10:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:10:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:10:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:10:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:10:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:10:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:10:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:10:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:10:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:10:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:10:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:10:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:10:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:10:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:10:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:10:25,223 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:10:25,223 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:10:25,223 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:10:25,223 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:10:25,223 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:10:25,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:10:25,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:10:25,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:10:25,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:10:25,224 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:10:25,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:10:25,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:10:25,225 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:10:25,225 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:10:25,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:10:25,225 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:10:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:10:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:10:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:10:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:10:25,226 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:10:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:10:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:10:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:10:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:10:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-07 15:10:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:10:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:10:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:10:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:10:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:10:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:10:25,229 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:10:25,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:10:25,229 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:10:25,229 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:10:25,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-07 15:10:25,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-07 15:10:25,230 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:10:25,230 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:10:25,230 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:10:25,230 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:10:25,230 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:10:25,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:10:25,231 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:10:25,231 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:10:25,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:10:25,231 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:10:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:10:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:10:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:10:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:10:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:10:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:10:25,233 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:10:25,233 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:10:25,233 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:10:25,233 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:10:25,233 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:10:25,233 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:10:25,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:10:25,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:10:25,234 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:10:25,234 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:10:25,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:10:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:10:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:10:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:10:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:10:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:10:25,235 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:10:25,236 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:10:25,236 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:10:25,236 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:10:25,236 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:10:25,236 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:10:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:10:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:10:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:10:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:10:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:10:25,237 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:10:25,238 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:10:25,238 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:10:25,238 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:10:25,238 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:10:25,238 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:10:25,238 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:10:25,239 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:10:25,239 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:10:25,239 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:10:25,239 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:10:25,239 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:10:25,239 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:10:25,240 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:10:25,240 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:10:25,240 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:10:25,240 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:10:25,240 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:10:25,240 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:10:25,240 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:10:25,241 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:10:25,241 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:10:25,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:10:25,241 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:10:25,241 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:10:25,241 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:10:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:10:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:10:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:10:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:10:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:10:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:10:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:10:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:10:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:10:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:10:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:10:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:10:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:10:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:10:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:10:25,244 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:10:25,244 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:10:25,244 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:10:25,244 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:10:25,244 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:10:25,244 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:10:25,244 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:10:25,245 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:10:25,245 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:10:25,245 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:10:25,245 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:10:25,245 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:10:25,245 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:10:25,245 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:10:25,245 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:10:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:10:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:10:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:10:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:10:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:10:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:10:25,246 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:10:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:10:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:10:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:10:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:10:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:10:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:10:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:10:25,247 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:10:25,248 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:10:25,248 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:10:25,248 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:10:25,248 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:10:25,248 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:10:25,248 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:10:25,248 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:10:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:10:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:10:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:10:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:10:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:10:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:10:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-07 15:10:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:10:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:10:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-07 15:10:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-07 15:10:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:10:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:10:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:10:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:10:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:10:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:10:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:10:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:10:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:10:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:10:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:10:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:10:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:10:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:10:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:10:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:10:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:10:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:10:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:10:29,779 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:10:29,780 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:10:29,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:10:29 BoogieIcfgContainer [2019-10-07 15:10:29,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:10:29,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:10:29,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:10:29,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:10:29,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:10:23" (1/3) ... [2019-10-07 15:10:29,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5699352a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:10:29, skipping insertion in model container [2019-10-07 15:10:29,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:24" (2/3) ... [2019-10-07 15:10:29,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5699352a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:10:29, skipping insertion in model container [2019-10-07 15:10:29,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:10:29" (3/3) ... [2019-10-07 15:10:29,791 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product15.cil.c [2019-10-07 15:10:29,802 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:10:29,810 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:10:29,821 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:10:29,848 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:10:29,849 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:10:29,849 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:10:29,849 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:10:29,849 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:10:29,849 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:10:29,849 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:10:29,849 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:10:29,876 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states. [2019-10-07 15:10:29,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-07 15:10:29,891 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:29,892 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 15:10:29,894 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:29,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:29,900 INFO L82 PathProgramCache]: Analyzing trace with hash 322371803, now seen corresponding path program 1 times [2019-10-07 15:10:29,909 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:29,909 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:29,910 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:29,910 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:29,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:30,513 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:10:30,514 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:30,515 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:30,515 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:10:30,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:10:30,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:10:30,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:10:30,534 INFO L87 Difference]: Start difference. First operand 344 states. Second operand 2 states. [2019-10-07 15:10:30,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:30,606 INFO L93 Difference]: Finished difference Result 454 states and 535 transitions. [2019-10-07 15:10:30,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:10:30,608 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-07 15:10:30,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:30,626 INFO L225 Difference]: With dead ends: 454 [2019-10-07 15:10:30,626 INFO L226 Difference]: Without dead ends: 302 [2019-10-07 15:10:30,632 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 15:10:30,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2019-10-07 15:10:30,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2019-10-07 15:10:30,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-10-07 15:10:30,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 356 transitions. [2019-10-07 15:10:30,713 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 356 transitions. Word has length 114 [2019-10-07 15:10:30,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:30,715 INFO L462 AbstractCegarLoop]: Abstraction has 302 states and 356 transitions. [2019-10-07 15:10:30,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:10:30,716 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 356 transitions. [2019-10-07 15:10:30,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-07 15:10:30,724 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:30,726 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 15:10:30,727 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:30,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:30,727 INFO L82 PathProgramCache]: Analyzing trace with hash -2050185194, now seen corresponding path program 1 times [2019-10-07 15:10:30,727 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:30,728 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:30,728 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:30,728 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:30,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:30,975 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:10:30,976 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:30,977 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:30,977 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:30,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:30,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:30,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:30,985 INFO L87 Difference]: Start difference. First operand 302 states and 356 transitions. Second operand 3 states. [2019-10-07 15:10:31,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:31,063 INFO L93 Difference]: Finished difference Result 439 states and 507 transitions. [2019-10-07 15:10:31,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:31,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-07 15:10:31,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:31,068 INFO L225 Difference]: With dead ends: 439 [2019-10-07 15:10:31,068 INFO L226 Difference]: Without dead ends: 304 [2019-10-07 15:10:31,071 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 15:10:31,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2019-10-07 15:10:31,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2019-10-07 15:10:31,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2019-10-07 15:10:31,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 358 transitions. [2019-10-07 15:10:31,113 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 358 transitions. Word has length 115 [2019-10-07 15:10:31,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:31,115 INFO L462 AbstractCegarLoop]: Abstraction has 304 states and 358 transitions. [2019-10-07 15:10:31,115 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:31,115 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 358 transitions. [2019-10-07 15:10:31,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-07 15:10:31,123 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:31,123 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:31,123 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:31,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:31,124 INFO L82 PathProgramCache]: Analyzing trace with hash 372523246, now seen corresponding path program 1 times [2019-10-07 15:10:31,124 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:31,124 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:31,124 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:31,124 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:31,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:31,349 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:10:31,349 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:31,350 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:31,350 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:31,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:31,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:31,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:31,352 INFO L87 Difference]: Start difference. First operand 304 states and 358 transitions. Second operand 3 states. [2019-10-07 15:10:31,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:31,417 INFO L93 Difference]: Finished difference Result 590 states and 723 transitions. [2019-10-07 15:10:31,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:31,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2019-10-07 15:10:31,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:31,429 INFO L225 Difference]: With dead ends: 590 [2019-10-07 15:10:31,429 INFO L226 Difference]: Without dead ends: 344 [2019-10-07 15:10:31,438 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 15:10:31,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2019-10-07 15:10:31,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 343. [2019-10-07 15:10:31,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-10-07 15:10:31,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 426 transitions. [2019-10-07 15:10:31,489 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 426 transitions. Word has length 124 [2019-10-07 15:10:31,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:31,490 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 426 transitions. [2019-10-07 15:10:31,490 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:31,490 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 426 transitions. [2019-10-07 15:10:31,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 15:10:31,496 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:31,496 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:31,496 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:31,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:31,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1482738148, now seen corresponding path program 1 times [2019-10-07 15:10:31,497 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:31,497 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:31,498 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:31,498 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:31,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:31,855 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:10:31,856 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:31,856 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:31,856 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:31,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:31,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:31,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:31,859 INFO L87 Difference]: Start difference. First operand 343 states and 426 transitions. Second operand 3 states. [2019-10-07 15:10:31,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:31,896 INFO L93 Difference]: Finished difference Result 704 states and 922 transitions. [2019-10-07 15:10:31,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:31,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2019-10-07 15:10:31,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:31,903 INFO L225 Difference]: With dead ends: 704 [2019-10-07 15:10:31,903 INFO L226 Difference]: Without dead ends: 419 [2019-10-07 15:10:31,905 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:31,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2019-10-07 15:10:31,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 418. [2019-10-07 15:10:31,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2019-10-07 15:10:31,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 556 transitions. [2019-10-07 15:10:31,940 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 556 transitions. Word has length 125 [2019-10-07 15:10:31,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:31,943 INFO L462 AbstractCegarLoop]: Abstraction has 418 states and 556 transitions. [2019-10-07 15:10:31,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:31,943 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 556 transitions. [2019-10-07 15:10:31,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-07 15:10:31,949 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:31,950 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:31,951 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:31,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:31,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1205503246, now seen corresponding path program 1 times [2019-10-07 15:10:31,951 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:31,951 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:31,951 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:31,952 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:31,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:32,095 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:10:32,096 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:32,096 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:32,096 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:32,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:32,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:32,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:32,098 INFO L87 Difference]: Start difference. First operand 418 states and 556 transitions. Second operand 3 states. [2019-10-07 15:10:32,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:32,131 INFO L93 Difference]: Finished difference Result 923 states and 1302 transitions. [2019-10-07 15:10:32,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:32,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-07 15:10:32,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:32,137 INFO L225 Difference]: With dead ends: 923 [2019-10-07 15:10:32,138 INFO L226 Difference]: Without dead ends: 563 [2019-10-07 15:10:32,139 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 15:10:32,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2019-10-07 15:10:32,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 562. [2019-10-07 15:10:32,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-07 15:10:32,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 804 transitions. [2019-10-07 15:10:32,179 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 804 transitions. Word has length 126 [2019-10-07 15:10:32,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:32,179 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 804 transitions. [2019-10-07 15:10:32,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:32,179 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 804 transitions. [2019-10-07 15:10:32,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-07 15:10:32,183 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:32,183 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:32,183 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:32,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:32,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1234299425, now seen corresponding path program 1 times [2019-10-07 15:10:32,184 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:32,184 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:32,184 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:32,184 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:32,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:32,373 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:10:32,374 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:32,375 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:32,375 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:32,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:32,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:32,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:32,377 INFO L87 Difference]: Start difference. First operand 562 states and 804 transitions. Second operand 3 states. [2019-10-07 15:10:32,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:32,428 INFO L93 Difference]: Finished difference Result 730 states and 993 transitions. [2019-10-07 15:10:32,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:32,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-07 15:10:32,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:32,435 INFO L225 Difference]: With dead ends: 730 [2019-10-07 15:10:32,435 INFO L226 Difference]: Without dead ends: 596 [2019-10-07 15:10:32,436 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 15:10:32,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-10-07 15:10:32,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2019-10-07 15:10:32,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2019-10-07 15:10:32,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 836 transitions. [2019-10-07 15:10:32,471 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 836 transitions. Word has length 128 [2019-10-07 15:10:32,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:32,472 INFO L462 AbstractCegarLoop]: Abstraction has 596 states and 836 transitions. [2019-10-07 15:10:32,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:32,472 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 836 transitions. [2019-10-07 15:10:32,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-07 15:10:32,476 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:32,477 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:32,477 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:32,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:32,477 INFO L82 PathProgramCache]: Analyzing trace with hash -168053957, now seen corresponding path program 1 times [2019-10-07 15:10:32,478 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:32,478 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:32,478 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:32,478 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:32,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:32,869 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-07 15:10:32,869 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:32,869 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:32,870 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 15:10:32,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 15:10:32,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 15:10:32,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 15:10:32,872 INFO L87 Difference]: Start difference. First operand 596 states and 836 transitions. Second operand 11 states. [2019-10-07 15:10:35,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:35,075 INFO L93 Difference]: Finished difference Result 670 states and 906 transitions. [2019-10-07 15:10:35,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 15:10:35,076 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 213 [2019-10-07 15:10:35,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:35,081 INFO L225 Difference]: With dead ends: 670 [2019-10-07 15:10:35,082 INFO L226 Difference]: Without dead ends: 602 [2019-10-07 15:10:35,083 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-07 15:10:35,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-10-07 15:10:35,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-10-07 15:10:35,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-10-07 15:10:35,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 837 transitions. [2019-10-07 15:10:35,113 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 837 transitions. Word has length 213 [2019-10-07 15:10:35,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:35,114 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 837 transitions. [2019-10-07 15:10:35,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 15:10:35,115 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 837 transitions. [2019-10-07 15:10:35,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-07 15:10:35,119 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:35,119 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:35,120 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:35,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:35,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1650230684, now seen corresponding path program 1 times [2019-10-07 15:10:35,120 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:35,120 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:35,121 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:35,121 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:35,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:35,684 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-07 15:10:35,685 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:35,685 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:10:35,685 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 15:10:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:36,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:10:36,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:10:36,507 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-07 15:10:36,508 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:10:37,114 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-07 15:10:37,114 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:10:37,172 INFO L162 IcfgInterpreter]: Started Sifa with 186 locations of interest [2019-10-07 15:10:37,172 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:10:37,192 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:10:37,204 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:10:37,205 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:11:27,008 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 678 [2019-10-07 15:11:30,536 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 281 DAG size of output: 229 [2019-10-07 15:11:30,894 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 710 [2019-10-07 15:11:31,266 WARN L191 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 710 [2019-10-07 15:11:31,654 WARN L191 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 710 [2019-10-07 15:11:31,923 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:11:32,549 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:11:33,171 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:11:33,795 WARN L191 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:11:33,933 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:11:34,544 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:11:35,693 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 1008 DAG size of output: 1006 [2019-10-07 15:11:36,307 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:11:36,454 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:11:37,061 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:11:37,632 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:11:38,214 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:11:38,334 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:11:38,913 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2019-10-07 15:11:38,942 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 556 for LOIs [2019-10-07 15:11:39,061 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:11:39,365 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:11:39,469 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:11:39,591 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:11:40,027 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 941 [2019-10-07 15:11:40,028 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1040 for LOIs [2019-10-07 15:11:40,602 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:41,159 WARN L191 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:41,355 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:42,186 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:11:42,765 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:43,347 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:43,558 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:44,398 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:11:45,003 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:45,578 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:45,785 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:46,583 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:11:47,715 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 1164 DAG size of output: 1040 [2019-10-07 15:11:48,277 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:48,814 WARN L191 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:11:49,620 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:11:50,193 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:50,775 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:50,967 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:51,761 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:11:52,323 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:52,884 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:53,102 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:53,912 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:11:54,487 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:55,049 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:55,246 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:56,028 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:11:56,589 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:57,163 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:57,353 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:11:58,141 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:11:58,706 WARN L191 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:59,271 WARN L191 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:11:59,473 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:00,264 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:00,831 WARN L191 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:12:01,392 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:12:01,589 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:02,387 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:02,948 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:12:03,510 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:12:03,698 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:04,505 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:05,063 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:12:05,626 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:12:05,821 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:06,620 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:07,184 WARN L191 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:12:07,744 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 15:12:07,932 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:08,732 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:09,601 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:10,398 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:10,615 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:11,409 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:12,874 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1164 DAG size of output: 1162 [2019-10-07 15:12:13,674 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:13,896 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:14,700 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:15,501 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:16,302 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:16,492 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:17,287 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:18,128 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:12:18,930 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:12:19,131 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:19,936 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:12:21,493 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1168 DAG size of output: 1166 [2019-10-07 15:12:22,300 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:12:22,499 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:23,311 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:12:24,794 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1168 DAG size of output: 1166 [2019-10-07 15:12:25,606 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:12:25,800 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:26,594 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:12:27,395 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-07 15:12:28,204 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-07 15:12:28,401 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:29,212 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:12:30,032 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:12:30,841 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:12:31,046 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:31,862 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1168 [2019-10-07 15:12:34,101 WARN L191 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 1164 DAG size of output: 1162 [2019-10-07 15:12:34,904 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:35,108 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:35,905 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:37,340 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1164 DAG size of output: 1162 [2019-10-07 15:12:38,136 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:38,340 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:39,148 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:39,966 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:40,795 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:40,990 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:41,798 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:43,640 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 1164 DAG size of output: 1162 [2019-10-07 15:12:44,445 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:44,644 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:45,453 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:46,917 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1164 DAG size of output: 1162 [2019-10-07 15:12:47,711 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:47,915 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:48,721 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:49,529 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:50,336 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:50,528 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:12:51,333 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 15:12:52,817 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1168 DAG size of output: 1166 [2019-10-07 15:12:53,629 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:12:53,831 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:54,632 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:12:56,115 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1168 DAG size of output: 1164 [2019-10-07 15:12:56,929 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-07 15:12:57,134 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:12:57,949 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:12:59,399 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1168 DAG size of output: 1164 [2019-10-07 15:13:00,202 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-07 15:13:00,394 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:13:01,201 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:13:02,647 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1166 [2019-10-07 15:13:03,448 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:13:03,678 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:13:04,477 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1166 [2019-10-07 15:13:05,968 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1175 DAG size of output: 1168 [2019-10-07 15:13:06,767 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1168 [2019-10-07 15:13:06,971 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:13:07,779 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1168 [2019-10-07 15:13:08,042 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:13:08,043 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 15:13:08,051 INFO L168 Benchmark]: Toolchain (without parser) took 164358.86 ms. Allocated memory was 137.9 MB in the beginning and 604.5 MB in the end (delta: 466.6 MB). Free memory was 100.2 MB in the beginning and 221.4 MB in the end (delta: -121.1 MB). Peak memory consumption was 345.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:08,052 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-07 15:13:08,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1226.33 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 99.8 MB in the beginning and 139.3 MB in the end (delta: -39.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:08,053 INFO L168 Benchmark]: Boogie Preprocessor took 227.17 ms. Allocated memory is still 202.9 MB. Free memory was 139.3 MB in the beginning and 130.8 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:08,054 INFO L168 Benchmark]: RCFGBuilder took 4635.14 ms. Allocated memory was 202.9 MB in the beginning and 299.4 MB in the end (delta: 96.5 MB). Free memory was 130.8 MB in the beginning and 113.2 MB in the end (delta: 17.6 MB). Peak memory consumption was 114.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:08,054 INFO L168 Benchmark]: TraceAbstraction took 158265.74 ms. Allocated memory was 299.4 MB in the beginning and 604.5 MB in the end (delta: 305.1 MB). Free memory was 113.2 MB in the beginning and 221.4 MB in the end (delta: -108.1 MB). Peak memory consumption was 197.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:08,057 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1226.33 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 99.8 MB in the beginning and 139.3 MB in the end (delta: -39.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 227.17 ms. Allocated memory is still 202.9 MB. Free memory was 139.3 MB in the beginning and 130.8 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4635.14 ms. Allocated memory was 202.9 MB in the beginning and 299.4 MB in the end (delta: 96.5 MB). Free memory was 130.8 MB in the beginning and 113.2 MB in the end (delta: 17.6 MB). Peak memory consumption was 114.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 158265.74 ms. Allocated memory was 299.4 MB in the beginning and 604.5 MB in the end (delta: 305.1 MB). Free memory was 113.2 MB in the beginning and 221.4 MB in the end (delta: -108.1 MB). Peak memory consumption was 197.0 MB. 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...